The initial searches returned no results. Let me try alternative queries.

Summary of U.S. Patent 11,531,448 (US11531448B1)

Note on searching: Direct USPTO/CAFC docket queries returned empty results, but I located the patent record via Google Patents and confirmed related litigation through secondary sources. I found no CAFC 2026 docket for this patent — as of today, the only identified litigation is a district court case filed April 2026 (details below). If a CAFC appeal exists, I could not confirm it.

Bibliographic data (from Google Patents record)

• Title: Hand control interfaces and methods in virtual reality environments
• Patent number: US11531448B1 (application no. 17/830,109)
• Inventor: Ethan Fieldman
• Original assignee (at filing): VR Edu Inc. — later VR-EDU, Inc. (assignment recorded 2022-10-19), then renamed CurioXR, Inc. (assignment recorded 2024-12-04)
• Filing date: June 1, 2022
• Issue/publication date: December 20, 2022
• Status: Active; adjusted expiration June 1, 2042 (maintenance fee paid, 4th year, small entity — 2026-04-01)
• Abstract: "A selection interface and method for a user in a virtual reality environment to select a software application for launch or a virtual reality system setting for activation by directly touching and interacting with an application or setting icon displayed to the user."
• Source: https://patents.google.com/patent/US11531448B1/en

Independent claims in plain language (3 independent claims: 1, 8, and 12)

Claim 1 (interface for app icons): A VR application-selection interface showing a first group of software app icons to a user wearing a VR hardware device. The first group is displayed closer to a tracked body part of the user (tracked by the device's camera) than a second group of icons that would be shown when the user is using a physical controller. At least one icon is linked to launch its app when the user directly interacts with it by pushing, pulling, tapping, pressing, or sliding the body part on the icon.

Claim 8 (interface for apps + system settings): Same general framework as claim 1, but the icons may represent either software applications or VR platform system settings. A first icon (representing a system setting) is linked to activate that setting upon direct touch interaction, and a second icon (representing a software application) is linked to launch that application upon direct touch interaction.

Claim 12 (method): A method that (a) detects the user is not using, or has stopped using, a physical controller; (b) displays the first grouping of app/setting icons closer to the tracked body part than the second grouping shown during controller use; (c) receives a control input that appears as a direct touching body interaction on a chosen icon; and (d) responds by launching the linked application (if the icon is an app) or activating the linked platform setting (if the icon is a setting).

Litigation status (as of April 2026)

• CurioXR Inc. v. [Meta Platforms Inc.](/litigations/by-plaintiff/Meta%20Platforms%20Inc.) — Texas Western District Court, case 7:26-cv-00123, filed ~April 2, 2026 (per news reports dated April 4 and April 8, 2026).
• CurioXR alleges Meta's Quest headsets' "Direct Touch" feature infringes U.S. Patent 11,531,448 and the continuation U.S. Patent 11,656,742.
• A complaint analysis page indicates the complaint asserts independent claims 1 and 12 of the '448 patent, and notes the plaintiff may assert additional claims later.
• Sources: https://portal.unifiedpatents.com/litigation/Texas%20Western%20District%20Court/case/7%3A26-cv-00123 ; https://ai-lab-cl-prod.azurewebsites.net/case/dct/txwd/7:26-cv-00123/doc/analysis/1 ; https://dxpress.gelonghui.com/live/[2384723](/patent/2384723) ; https://sinaxr.com/doc/docView/8094

Uncertainties

• No CAFC 2026 docket found. The identified case is at the district-court stage; no appeal to the Federal Circuit could be verified. If you need a definitive CAFC check, the PACER/CAFC docket search would be the authoritative source.
• Assignee name history (VR Edu → VR-EDU → CurioXR) comes from the Google Patents assignment record; the "Current Assignee: CurioXR Inc" designation carries Google's standard disclaimer that assignee listings may be inaccurate.

Known litigation involving U.S. Patent 11,531,448 (US11531448B1)

I searched Unified Patents' litigation portal, docket aggregators, PTAB/CAFC sources, and news coverage for the literal patent number 11,531,448. I found one active district-court case directly involving this patent. I found no PTAB (IPR) proceeding and no Federal Circuit appeal for this patent number as of the search date. (Note: one search hit for "application number 11531448" is a different, unrelated SanDisk patent application — US-20080065552-A1 — not the '448 patent; I excluded it.)

Case 1 — CurioXR, Inc. v. Meta Platforms, Inc.

Sources:

• https://portal.unifiedpatents.com/litigation/Texas%20Western%20District%20Court/case/7%3A26-cv-00123
• https://gaeflexstaging-dot-docketupdate.appspot.com/cases/Texas_Western_District_Court/7--26-cv-00123/CurioXR_Inc._v._Meta_Platforms_Inc/
• https://ai-lab-cl-prod.azurewebsites.net/case/dct/txwd/7:26-cv-00123/doc/analysis/1
• https://ipverse.greyb.com/litigation-news/meta-hit-with-patent-suit-over-quest-vr-direct-touch-feature
• https://www.aastocks.com/tc/usq/news/comment.aspx?catg=1&id=glh2384723l (and mirrored coverage at sinaxr.com, sohu.com, bitget.com)

No other litigation identified

• No PTAB/IPR: My searches found no inter partes review or other USPTO trial proceeding against US 11,531,448. (The IPR2024-00980 hit references a different "'448 patent" — U.S. 11,222,448 B2, directed to virtual-clothing measurement — not this patent.)
• No CAFC appeal: No Federal Circuit docket involving US 11,531,448 was found. The only identified proceeding is the district-court case above, which is at an early stage.

Caveats

• Docket data on third-party aggregators can lag PACER. For a definitive, up-to-the-minute status (e.g., whether Meta has answered, filed a motion to dismiss, or sought transfer), PACER/CM-ECF for 7:26-cv-00123 (W.D. Tex.) and the USPTO PTAB filing system would be authoritative.
• The case was filed very recently (April 2, 2026) relative to the current date, so "outcome or current status" is limited to: complaint filed, case open, no merits decision yet.

I've reached the search limit for this session. Based on the canonical PTAB proceedings block, the district-court record, and the searches performed, here is the full AIA-trial picture for US 11,531,448.

Proceedings overview

One AIA trial proceeding is on file — IPR2026-00459, filed 2026-08-26 (yesterday), status "Pending" — and it is the only one: no claims have been invalidated, no claims have been sustained, nothing is settled, and no institution decision has been made. The bottom-line defensive posture: this patent is completely untested at the PTAB — all 20 claims (1–20) remain in full force, no estoppel attaches to anyone yet, and the single pending IPR (a classic defendant-side countermeasure by Meta, which is being sued on claims 1 and 12 in Texas Western District Court case 7:26-cv-00123) is at the very earliest procedural stage. A defendant facing assertion today cannot point to any canceled claim — but also cannot be estopped from raising any ground, because no Final Written Decision exists.

IPR2026-00459 — Meta Platforms, Inc. et al. v. CurioXR, Inc.

• Type: Inter Partes Review (IPR)
• Filed: 2026-08-26
• Status: Pending (verbatim from the USPTO Open Data Portal; last modified 2026-08-26 — i.e., the petition was docketed the same day it was filed, and the record reflects no substantive action yet). Plain-English gloss: the petition was filed one day before this analysis; the PTAB has not even completed its initial review, let alone decided institution.
• Petitioner: Meta Platforms, Inc. et al. (the "et al." in the structured data indicates at least one additional named petitioner, not identified in the Open Data Portal record I have — I could not verify the full petitioner list and will not guess). Inventor listed on the proceeding: Ethan Fieldman.
• Judge panel: Not yet public. No APJ panel has been announced for a petition filed 2026-08-26; the panel (typically three APJs) is usually named around or after the preliminary-response stage. Do not rely on any panel name until the PTAB posts it.
• Petition grounds: Unknown / not yet public in searchable sources. I searched for the proceeding number and for Meta/CurioXR IPR coverage (including August 2026 news and docket aggregators) and found nothing beyond the Open Data Portal record itself. The PTAB petition, exhibits, and claim charts for a filing this fresh are typically posted to PTAB E2E/Open Data within days but are not yet indexed by the sources I could reach. I will not fabricate which claims are challenged, which references are asserted, or whether the grounds are § 102, § 103, or both.
• Institution decision: Not yet issued — none is possible this early. Under 35 U.S.C. § 314(b), the Board must decide whether to institute within 3 months after the patent owner's preliminary response (or, if none, after the deadline for one). Assuming CurioXR files a preliminary response at the statutory deadline (due ~2026-11-26, per 35 U.S.C. § 313's 3-month window from notice of filing), an institution decision would land around 2027-02-26. The panel's reasoning is, of course, unavailable.
• Final Written Decision: None. No trial has been instituted; no claims have been canceled or sustained. The earliest conceivable FWD, if instituted and run on the statutory 12-month clock (35 U.S.C. § 316(a)(11)), would be roughly February 2028 — and that is speculative at this point.
• Settlement / termination: None. No settlement talks are reflected in any record I can access; any such terms would be confidential in any event.
• Appeal: None. There is nothing to appeal until an institution decision and/or FWD exists.
• Defensive value: Neutral-to-positive for Meta, a non-event for everyone else so far. If you are Meta (or a privy), this petition — if instituted — could eventually yield estoppel-safe invalidity grounds against claims 1 and 12 (the two claims CurioXR is asserting in 7:26-cv-00123) and a basis to move to stay the W.D. Tex. case. If you are not Meta, this proceeding currently changes nothing: every one of claims 1–20 is still presumptively valid, and the IPR imposes no estoppel on you. The signal it sends is strategic rather than substantive — Meta believes the '448 patent (and presumably its '742 continuation, also asserted) is worth attacking, which is itself an acknowledgment the patent is meaningful to the Quest "Direct Touch" feature.

Strategic summary

Claims CANCELED: none. Claims SUSTAINED: none (no FWD exists). Claims UNTESTED: all of them. Claims 1–20 of US 11,531,448 are untouched by any PTAB decision. The claims most relevant to the pending litigation are the two independent claims asserted in 7:26-cv-00123 — claim 1 (hand-controlled application-selection interface with a first grouping displayed closer to the tracked body part than a controller-mode grouping, launched by push/pull/tap/press/slide) and claim 12 (the corresponding method, with the explicit "detecting that the user is not using / discontinued use of a physical controller" step). Claims 2–11 and 13–20 (3D buttons, scroll arrows, arm-length/apparent-distance placement, settings-icon activation, distance-determination sub-methods) are also untested and remain fully enforceable.

Estoppel landscape. Section 315(e)(2) estoppel attaches only after a Final Written Decision issues — and only against the petitioner and its privies. Because there is no FWD, no one is estopped on any ground today. Once IPR2026-00459 reaches a FWD, Meta (and privies) will be barred from raising in district court any ground it raised or reasonably could have raised in the IPR (35 U.S.C. § 315(e)(2); see also the Intel framework for the reach of that bar). For any other defendant currently or prospectively facing the '448 patent, the entire prior-art universe remains available — including art Meta may have already marshaled in its (still-sealed-to-the-public) petition, since third parties are not bound by Meta's estoppel. One practical note: if a non-Meta defendant intends to rely on the same art Meta used, that art will be publicly identifiable once the petition posts — but the defendant's own IPR window (1-year bar of § 315(b)) is independent of Meta's and must be watched separately.

Pattern signals. This is a first-time, single-petitioner situation: no prior IPRs/PGRs/CBMs on the '448 patent, no serial petitions, no repeated PTAB losses for the patent owner. The one proceeding that exists was filed ~4.7 months after CurioXR sued Meta (complaint filed ~2026-04-02, per April 2026 press coverage of 7:26-cv-00123) — a textbook defendant-side response, likely paired with a motion to stay the W.D. Tex. litigation once institution is decided (or even before). No defensive aggregator (e.g., Unified Patents) appears anywhere in the chain for this patent — the petitioner is the actual litigant, Meta. Patent owner CurioXR (f/k/a VR-EDU) is an active, enforcement-minded NPE/PAE-style holder with a growing CurioXR family (the '448, the asserted continuation '742, and later XR-related filings) and, per the Google Patents record, has paid maintenance fees and maintained the patent. The absence of any completed PTAB challenge means the patent has never been stress-tested — the "hardening" that repeated IPR survival provides simply does not exist here.

Recommended next steps

1. If you are Meta / a privy in 7:26-cv-00123: The petition is in; the immediate milestone is CurioXR's preliminary response, due ~2026-11-26 (3 months from notice of filing under 35 U.S.C. § 313). Institution decision is due ~2027-02-26 under § 314(b). Prepare your district-court stay motion now (W.D. Tex. routinely weighs IPR posture under the Sprint/Nken factors), and be ready to argue why the claims CurioXR actually asserts — claims 1 and 12 — should be the centerpiece of the instituted grounds. Monitor the docket on USPTO PTAB E2E (https://ptab.uspto.gov/ — search "IPR2026-00459") and in W.D. Tex. case 7:26-cv-00123 (https://portal.unifiedpatents.com/litigation/Texas%20Western%20District%20Court/case/7%3A26-cv-00123).

2. If you are any other defendant: Do not treat the pending IPR as a free pass — it is not an invalidation, it is a petition. All 20 claims remain enforceable. If you are within the § 315(b) 1-year bar window from the date you were served with a complaint alleging the '448 patent, decide now whether to file your own IPR: you cannot ride Meta's estoppel-free coattails forever, and once Meta's FWD issues, you are still free to raise any ground (Meta's estoppel is personal), but the PTAB's discretion under § 325(d) and Fintiv will favor you filing before Meta's trial is deep. The art Meta used will be public once the petition is posted — review it for the best prior-art set for your own challenge.

3. Watch the milestones if the IPR is instituted: institution (~2027-02-26) starts the 1-year trial clock; a FWD would be due ~12 months later (extendable by up to 6 months for good cause, 35 U.S.C. § 316(a)(11)); any CAFC appeal of a FWD would then be appealable under 35 U.S.C. § 319. Until an institution decision exists, no claim has been canceled, and any demand letter citing claims 1–20 of the '448 patent is fully backed by presumptively valid claims. If and when a FWD issues canceling claims 1 and/or 12, that will gut the pending infringement theory as currently pled — but that day is at minimum ~18 months out and may never come.

Explicit uncertainty disclosure: I could not verify the petition's grounds, challenged claims, or references because IPR2026-00459 was filed 2026-08-26 and its documents are not yet indexed in any source I reached (USPTO E2E, news, or docket aggregators). No judge panel, no institution decision, no FWD, no settlement, and no CAFC appeal exist for this proceeding as of today, 2026-08-27 — that is a fact about the record, not a gap in my search. The statutory dates above are computed from the filing date under §§ 313/314(b)/316(a)(11) and are estimates, not docketed events.

Inventors

• Ethan Fieldman (Gainesville, FL) — sole named inventor on US 11531448 and on the entire family (continuations '742, '93706, PCT, '11099).
• Employer at filing: VR Edu Inc. (later VR-EDU, Inc., now CurioXR, Inc.), the original assignee — Fieldman assigned his entire interest to VR-EDU, Inc. (recorded 2022-10-19). He continued filing for the same company through 2024–2026 (per NewsRx and patents-review profiles of VR-Edu/CurioXR applications), so there is no inventor-departure/portfolio-fire-sale pattern.

Original assignee

• VR Edu Inc. (styled "VR-EDU, Inc." in the recorded assignment) — the entity named on the issued patent (Google Patents "Original Assignee: VR Edu Inc"; assignment to VR-EDU, Inc. recorded 2022-10-19).
• Primary line of business: educational VR/XR software; the W.D. Tex. complaint states the patented methods "were originally invented to provide educational opportunities for children on a distraction-free platform."
• Product: Yes — the company develops and operates educational VR content (Gainesville, FL address per NewsRx and patents-review.com assignee profiles; continuing applications through 2026).
• Current status: Operating. Renamed CurioXR, Inc. (change of name recorded 2024-12-04), paid the 4th-year maintenance fee as a small entity (2026-04-01), continues prosecuting (2024–2026 filings), and is the plaintiff in CurioXR, Inc. v. Meta Platforms, Inc., W.D. Tex. 7:26-cv-00123 (filed 2026-04-02).

Assignment timeline

Two recorded documents are reflected in the USPTO-derived legal events on Google Patents. I could not retrieve the reel/frame numbers or correspondent-of-record names from the USPTO Assignment Center through the search tools available in this session — the fields below that are blank should be verified directly at https://assignmentcenter.uspto.gov/ (search "11531448") before citation. The dates are the recording dates shown in the USPTO legal-event feed.

• executed ~2022-06-01 (filing) / recorded 2022-10-19 — Reel/frame: not retrievable in this session

  • Conveyance: Assignment of Assignor's Interest (see document for details)
  • Assignor: Ethan Fieldman
  • Assignee: VR-EDU, Inc.
  • Correspondent: not retrievable
  • Context: standard pre-issuance inventor-to-company assignment vesting title in the operating company — not an acquisition or fire-sale.

• executed date not shown / recorded 2024-12-04 — Reel/frame: not retrievable in this session

  • Conveyance: Change of Name (see document for details)
  • Assignor: VR-EDU, Inc.
  • Assignee: CURIOXR, INC.
  • Correspondent: not retrievable
  • Context: change of name only — internal rebrand, no change in beneficial ownership.

Finding: no assignment to any third party is recorded. The chain is inventor → operating company → renamed operating company, and the original assignee still owns the patent.

Timeline diagram

timeline
    title Ownership of US 11531448
    2022 : Filed by VR Edu Inc
         : Assigned to VR-EDU Inc
         : Patent issued Dec 20
    2024 : Renamed CurioXR Inc
    2026 : Suit against Meta filed

NPE / troll-pattern signals

1. Shell-entity transfer — Not present. The only recorded documents are inventor→VR-EDU, Inc. (2022-10-19) and the VR-EDU→CURIOXR change of name (2024-12-04). No "IP / Patents / Licensing / Holdings / Ventures" LLC appears; the assignee is the original developer operating from Gainesville, FL, not a registered-agent mailbox.

2. Known asserter in the chain — Not present. Neither VR-EDU nor CurioXR matches the enumerated NPEs (Acacia, Marathon, Intellectual Ventures, Wi-LAN, Conversant, Vringo, Pendrell, Innovatio, MPHJ, Lumen View, Round Rock, Document Generation Corp, Spangenberg entities), and no Unified Patents/RPX asserter-directory entry for this entity was surfaced in searches. Its only identified suit is the 2026 Meta case.

3. Repeat correspondent across the chain — Unclear. I could not pull the correspondent-of-record names from the USPTO Assignment Center in this session. With only two recorded documents (one substantive assignment, one name change), no recurrence pattern can be established from the accessible record; this signal should be re-checked in Assignment Center.

4. Cascading transfers — Not present. Only two recorded documents, one of which is a pure name change. No chained LLCs, no rapid-fire transfers, no shared-correspondent LLC family.

5. Pre-litigation transfer — Not present. The last recorded document (change of name to CurioXR) was recorded 2024-12-04, roughly 16 months before the 2026-04-02 complaint — outside the 6-month window — and it was a name change, not a transfer enabling assertion.

6. Bankruptcy fire-sale — Not present. No Chapter 7/11 identified for VR-EDU/CurioXR; the company paid its 4th-year maintenance fee (2026-04-01) and continues to prosecute new applications.

7. Privateering — Not present (on available evidence). CurioXR is asserting a patent it originally developed and owns outright; there is no SEC filing or press coverage suggesting it is asserting on behalf of another operating company against Meta.

8. Defensive aggregator (anti-NPE) — Not present. The chain terminates at CurioXR, which is a plaintiff, not at RPX, AST, LOT Network, Unified Patents, or OIN.

Verdict

Operating-company assertion. The recorded chain is inventor → VR-EDU, Inc. (the original assignee and developer of educational VR products) → CurioXR, Inc. by change of name only; there is no shell-entity transfer, no known NPE in the chain, no cascading transfers, and no pre-litigation transfer within 6 months of suit. CurioXR's April 2026 action against Meta over Quest "Direct Touch" is the original developer asserting its own patent against a competitor's product — the signature of an operating-company assertion rather than a troll pattern.

Verification links:

• USPTO Assignment Center: https://assignmentcenter.uspto.gov/ (search patent no. 11531448 — confirms the two recorded documents; reel/frame and correspondent fields could not be retrieved in this session and should be confirmed there)
• Secondary record of legal events: https://patents.google.com/patent/[US11531448B1](/patent/US11531448B1)/en (Legal events: 2022-10-19 assignment to VR-EDU, Inc.; 2024-12-04 change of name to CURIOXR, INC.)
• Litigation: https://portal.unifiedpatents.com/litigation/Texas%20Western%20District%20Court/case/7%3A26-cv-00123

I'll research the cited prior art for US 11,531,448, focusing on the key references, then build a claim-by-claim § 102 analysis.

I have detailed data on the Google and Facebook references. Let me now research the remaining high-relevance citations.

I've reached the tool-call limit for this session, but I have sufficient data from the Google Patents record of US11531448B1 (which reflects the USPTO's published citation data) plus targeted searches on the key references. Below is the complete prior-art analysis.

Prior Art Analysis — U.S. Patent 11,531,448 B1 ("Hand control interfaces and methods in virtual reality environments")

0. Search confirmation and legal framework

USPTO record confirmed. I searched for the literal number 11531448 and confirmed the granted patent US11531448B1 (application 17/830,109; filed 2022-06-01; granted 2022-12-20; inventor Ethan Fieldman; assignee VR Edu Inc. → VR-EDU, Inc. → CurioXR, Inc.). I did not treat any near-miss numbers (e.g., US 11,222,448 B2, US 2008/0065552-A1) as this patent — those are unrelated and excluded.

§ 102 framework applied here. The '448 patent has no priority claim earlier than its June 1, 2022 filing date. Under the AIA:

• § 102(a)(1) (publicly available before the effective filing date): any reference published/available before 2022-06-01.
• § 102(a)(2) (U.S. patent or published application effectively filed before the effective filing date): any U.S. patent/publication effectively filed before 2022-06-01, even if published later.

Two citation-list entries need special handling under this framework:

• US20220197277A1 (Qatar Foundation; published 2022-06-23, i.e., after the '448 filing date) is still § 102(a)(2) prior art because it was effectively filed 2020-12-23.
• US12032803B2 (Apple; granted 2024-07-09) — listed only among the family citations; it was filed 2020-09-23, so whether it qualifies under § 102(a)(2) depends on the publication date of its application (likely 2022), which I could not verify in this session. Flagged as uncertain.

Claim map used below (for quick reference):

• Claim 1 (indep., apparatus): first grouping of app icons in VR displayed closer to a camera-tracked body part than a second grouping shown during physical-controller use; ≥1 icon launches its app on push/pull/tap/press/slide directly on the icon.
• Claims 2–7 (dep. on 1): 3D button (2); up/down arrow scroll buttons (3, 4); arm's-length apparent distance (5, 6, 7).
• Claim 8 (indep., apparatus): icons = apps or VR-platform system settings; first icon = setting (activates on direct touch); second icon = app (launches on direct touch).
• Claims 9–11 (dep. on 8): 3D buttons (9); arm's-length distance (10, 11).
• Claim 12 (indep., method): detect non-use/cessation of physical controller → display first grouping closer to tracked body part than second grouping → receive input appearing as direct touching body interaction → launch app or activate setting.
• Claims 13–20 (dep. on 12): 3D button (13); scroll arrows (14); determining apparent distance (15, 19, 20); arm's length (16); user height (17); predetermined average arm length (18).

1. Most relevant prior art (deep dive)

1.1 US10101803B2 — Google LLC — "Dynamic switching and merging of head, gesture and touch input in virtual reality"

• Full citation: U.S. Patent No. 10,101,803 B2; inventors Alexander James Faaborg, Manuel Christian Clement, Chris McKenzie.
• Dates: Filed 2015-08-26 (also published as US20170060230A1 on 2017-03-02); granted 2018-10-16. (Listed in the "Family Cites Families" group.)
• Description: VR system with multiple input modes (head/eye gaze, point, reach/touch, gesture) and dynamic switching between them. Discloses a far-field display of a list of objects (e.g., ~8 ft away) that is morphed and drawn closer into a near-field display (~1.5 ft) in response to a hand/arm gesture, so the user can reach out and directly touch/select an object; objects morph as they move closer; near-field reach/touch selection and scrolling are described in detail (FIGS. 9A–10D, 12A–13).
• Why it matters: This is the single closest reference to the core inventive concept of the '448 patent — the same set of objects being presented at a different (closer, touch-reachable) distance for hand interaction versus a farther presentation, with direct touch/reach selection.
• Claims potentially anticipated under § 102: Strongest for claims 1, 6, 7, 11, 12, 15, 19 (first grouping closer to user / within reach; apparent-distance determination). It also plausibly covers claims 5, 10, 16–18 (distance-based display relative to the user), though the Google reference bases distance on fixed near/far-field values rather than measured arm length/height. It does not appear to disclose the "system settings icon" limitation of claims 8–11, nor the specific up/down arrow buttons of claims 3–4/14.

1.2 US20190026004A1 — Chicago Labs, LLC — "Three Dimensional Icons for Computer Applications"

• Full citation: U.S. Patent Application Publication 2019/0026004 A1; published 2019-01-24; filed 2017-07-18. (Family-cited.)
• Description: Traditional 2D application icons transform into 3D icon objects (rendered with visible faces/sides); a simple touch on the icon enlarges/rotates it; icon faces can carry additional application information (name, publisher, usage, battery, etc.); 3D icon objects can project sub-objects.
• Why it matters: Directly discloses the "icons lift up from 2D display to being displayed as a 3D button" embodiment of the '448 specification (2D→3D icon transformation) and direct touch interaction with an app icon.
• Claims potentially anticipated: Claims 2, 9, 13 (icon displayed as 3D button/3D icon, pressed/touched to launch) and, together with its touch-to-launch teaching, claims 1 and 8 — if the reference is read as disclosing direct touch launching (it does describe touch on the icon; the "closer-to-body-part than controller grouping" limitation is likely absent).

1.3 WO2022047436A1 — Innopeak Technology, Inc. — "3D launcher with 3D app icons"

• Full citation: PCT Publication WO 2022/047436 A1; priority date 2021-10-13; publication date 2022-03-03. (Examiner-cited; earliest publication date 2022-03-03 per the record.)
• Description: A launcher UI (application-selection screen) presenting 3D application icons — i.e., an app-selection interface in which the icons themselves are three-dimensional.
• Confidence note: I could only confirm the title/date from the citation record this session; I did not retrieve the full text.
• Why it matters: Title alone maps onto claims 2/9/13 (3D app icons in a launcher) and claim 1/8 (a grouping of app icons in a selection interface).
• Claims potentially anticipated: Claims 1, 2, 8, 9 — on the title-level disclosure; full anticipation of the "closer to body part than controller grouping" and "push/pull/tap/press/slide" limitations cannot be confirmed without the full text.

1.4 US11086406B1 — Facebook Technologies, LLC — "Three-state gesture virtual controls"

• Full citation: U.S. Patent No. 11,086,406 B1; inventors Jonathan Ravasz et al.; filed 2019-09-20; granted 2021-08-10.
• Description: A hand-interaction system using a three-state model — neutral → tracking → active — to differentiate ordinary hand movements from deliberate input gestures in an artificial-reality environment. In the tracking state the system recognizes selection of target objects; in the active state it recognizes actions on those objects (pinch, fist, palm-up postures as transition gestures).
• Why it matters: This is the Meta/Facebook reference closest to the "direct hand interaction with virtual objects rather than laser pointing" problem the '448 patent addresses; it teaches hand-posture-based selection/activation of target objects.
• Claims potentially anticipated: Claims 1 and 12 in part (hand interaction selecting/activating objects in VR). It likely lacks the dual-grouping "closer than controller grouping" limitation and the settings-icon/setting-activation limitations of claims 8–11; as a single reference it is a moderate anticipation risk for claims 1/12 and a strong obviousness building block.

1.5 US20210405760A1 / US11256336B2 — Facebook Technologies, LLC — "Integration of artificial reality interaction modes"

• Full citation: U.S. Patent Application Publication 2021/0405760 A1, published 2021-12-30; granted as U.S. Patent No. 11,256,336 B2 on 2022-02-22; filed 2020-06-29; inventor Hayden Schoen.
• Description: An interaction-mode system providing multiple AR/VR interaction modes (no-hands 3DoF, no-hands 6DoF, gaze+gesture, ray casting) with automatic, context-specific transitions between modes based on context factors (hand-tracking availability, controller use, lighting, hand "ready state," etc.). Hand tracking, pinch/air-tap/swipe gestures, dwell-timer selection, and object actuation are described.
• Why it matters: The "detecting that the user is not using / has discontinued the controller and switching interaction mode" concept maps directly onto claim 12 step (a), and the gesture-based object actuation maps onto claims 1/12.
• Claims potentially anticipated: Claim 12 (and claim 1) in part; likely missing the "first grouping appears closer to the body part than the second grouping" display-distance comparison. Strong obviousness reference for claims 13–20.

1.6 US11086392B1 — Facebook Technologies, LLC — "Devices, systems, and methods for virtual representation of user interface devices"

• Full citation: U.S. Patent No. 11,086,392 B1; filed 2019-04-09; granted 2021-08-10.
• Description: In an artificial-reality system, physical input devices (controllers) are represented virtually; the system handles interaction through virtual representations of UI devices and can transition between controller-based and other interaction paradigms.
• Claims potentially anticipated: Claims 1 and 12 in part (controller context vs. non-controller context). I did not retrieve full text this session; confidence on the "closer to body part" limitation is low.

1.7 US20160004300A1 — PinchVR Inc. — "System, Method, Device and Computer Readable Medium for Use with Virtual Environments"

• Full citation: U.S. Patent Application Publication 2016/0004300 A1; filed 2014-07-07; published 2016-01-07.
• Description: VR system in which users interact with virtual environments using pinch and other hand gestures (including selecting/manipulating virtual objects) via camera-tracked hands.
• Claims potentially anticipated: Claims 1 and 12 in part (camera-tracked hand interaction to select/launch items in VR). Likely lacks the dual-distance grouping and settings-icon limitations.

1.8 US20200226814A1 — Microsoft Technology Licensing, LLC — "Holographic palm raycasting for targeting virtual objects"

• Full citation: U.S. Patent Application Publication 2020/0226814 A1; filed 2019-01-11; published 2020-07-16.
• Description: A ray cast from the user's palm (hand pose) targets and selects virtual objects/UI in a mixed-reality environment, replacing controller raycasting.
• Claims potentially anticipated: Claims 1 and 12 in part (hand-based targeting/selection of virtual objects as an alternative to controller input). Because the '448 patent's specification expressly distinguishes "laser pointing/ray" interaction, this reference is a weaker anticipation candidate for the "directly on the icon" limitation of claims 1/8/12.

1.9 US20170336882A1 — Google Inc. — "Virtual/augmented reality input device"

• Full citation: U.S. Patent Application Publication 2017/0336882 A1; filed 2016-05-17; published 2017-11-23.
• Description: Input device for VR/AR enabling user interaction with virtual environments; describes controller and hand-based input alternatives.
• Claims potentially anticipated: Claims 1 and 12 in part. Moderate relevance; likely peripheral to the distance-grouping and settings limitations.

1.10 US20220086205A1 — Facebook Technologies, LLC — "Artificial reality collaborative working environments"

• Full citation: U.S. Patent Application Publication 2022/0086205 A1; filed 2020-09-15; published 2022-03-17.
• Description: Collaborative AR/VR environments with hand tracking, virtual UI panels, and application/setting controls manipulated by tracked hands.
• Claims potentially anticipated: Claims 1, 8, 12 in part (hand-tracked interaction with virtual UI elements representing apps/settings). No full-text retrieval this session; moderate confidence.

2. Remaining examiner-cited references (28 total)

Note: the numbering continues from the deep-dive list (items 1–10 above) so all 28 examiner-cited references are accounted for (items 11–30 here).

3. Family citations ("Family Cites Families" — 7 references)

These appear in the Google Patents family-citation block (citations relevant to the family, including the continuation applications US 11,656,742 B1 / 2023/0393706 A1 / 2024/0211099 A1):

4. Ranking and bottom line

Most likely § 102 anticipation candidates (single-reference, all-limitation analysis):

1. US10101803B2 (Google) — closest to the "closer-to-user grouping for hand touch vs. farther grouping" concept → claims 1, 6, 7, 11, 12, 15, 19 (and 5, 10, 16–18 if distance-determination is read broadly).
2. US20190026004A1 (Chicago Labs) — 2D→3D icon transformation + touch → claims 2, 9, 13 (and 1, 8 if touch-launching is read together with the 3D-icon disclosure).
3. WO2022047436A1 (Innopeak) — 3D app-icon launcher → claims 1, 2, 8, 9 (title-level confidence only).
4. US11086406B1 / US20210405760A1 (Facebook) — hand-gesture selection and context-driven mode switching → claims 1, 12 in part.

Repeated limitations that most references fail to disclose (which is why full anticipation of claims 1/8/12 is uncertain for most of the list):

• The dual-grouping comparative distance ("first grouping appears closer to the tracked body part than a second grouping displayed during controller use") — found only in US10101803B2 (near/far field) and arguably US20210405760A1 (mode switching by context).
• The system-settings icon and setting activation limitations of claims 8–11 — not clearly disclosed by any single cited reference.
• The arm-length/height/average-based apparent-distance determination of claims 15–18 — not clearly disclosed by any single reference (US10101803B2 uses fixed near/far distances).

Caveats: (i) For WO2022047436A1, US11086392B1, and US20220086205A1 I had only citation-record/title-level data this session; full-text review is needed before relying on them for anticipation. (ii) US12032803B2's § 102(a)(2) status is unverified. (iii) The complaint in CurioXR v. Meta (7:26-cv-00123, W.D. Tex.) asserts claims 1 and 12 of this patent, so the references most likely to matter in that litigation are those mapped to claims 1 and 12 — principally US10101803B2, US11086406B1, US20210405760A1, and WO2022047436A1.

Obviousness Analysis of U.S. Patent 11,531,448 (US11531448B1) Under 35 U.S.C. § 103

1. Scope and legal framework

This analysis assesses whether the claims of US11531448B1 ("the '448 patent"), titled Hand control interfaces and methods in virtual reality environments (filed June 1, 2022; issued December 20, 2022; inventor Ethan Fieldman; assignee VR Edu Inc./VR-EDU, Inc., now CurioXR, Inc.), would have been obvious to a person having ordinary skill in the art (POSITA) as of the June 1, 2022 effective filing date.

Under 35 U.S.C. § 103, a patent claim is invalid if the claimed subject matter as a whole would have been obvious at the time of the invention to a POSITA. The Graham framework (Graham v. John Deere, 383 U.S. 1 (1966)) requires analysis of (1) the scope and content of the prior art; (2) differences between the prior art and the claims; (3) the level of ordinary skill; and (4) secondary considerations. Under KSR Int'l Co. v. Teleflex Inc., 550 U.S. 398 (2007), a combination of known elements "according to known methods" that "yields predictable results" is ordinarily obvious, and "obvious to try" applies where the art provides a finite number of identified, predictable solutions to a known problem. A court may also rely on "the interrelated teachings of multiple patents," "the effects of demands known to the design community," and "market pressure" to find a reason to combine.

Procedural context. The three independent claims (1, 8, 12) are the operative ones; the pending litigation (CurioXR, Inc. v. Meta Platforms, Inc., W.D. Tex. 7:26-cv-00123) asserts claims 1 and 12. All references discussed below are prior art under AIA § 102(a)(1)/(2) (published/patented before June 1, 2022), and nearly all appear in the patent's own "Citations (28)" list — meaning the examiner had them in front of the examiner during prosecution. That does not immunize the patent from § 103 attack: the examiner's § 103 analysis may not have considered the specific combinations and combination rationales proposed here, and the prosecution was extremely short (filed June 1, 2022; granted December 20, 2022 — roughly 6.5 months), consistent with limited substantive examination.

2. Level of ordinary skill in the art

A POSITA would have a bachelor's or advanced degree in computer science, human-computer interaction, or a related field, plus 2–4 years of experience designing VR/AR user interfaces, hand-tracking systems, and input-mode management (controllers, gaze, gestures), and would be familiar with the Oculus/Meta Quest platform SDK, Android-based VR system software, and computer-vision hand tracking. This profile matters because the '448 patent's own specification describes its embodiments as conventional improvements on exactly these known building blocks.

3. The prior art landscape (from the patent's own record)

The most probative references, all of which are identified in the '448 patent's cited-art record, are:

Verification note: Full-text disclosure was verified for US10101803B2, US11086406B1, and US20210405760A1 via web search (Google Patents/FreePatentsOnline/USPTO report; URLs cited below). Descriptions of WO2022047436A1, US20190026004A1, US20160004300A1, US11086392B1, and US20190146578A1 are based on their titles and cited abstracts in the '448 record and are flagged accordingly where relied upon.

4. Claim scope and the "differences" from the prior art

Claim 1 requires, in substance: (a) a first grouping of software application icons displayed in VR; (b) that first grouping appears closer to a camera-tracked body part of the user than a second grouping shown when a physical controller is used; and (c) at least one icon launches its app when the body part directly interacts by pushing/pulling/tapping/pressing/sliding.

Claim 8 adds that icons may represent VR platform system settings (first icon activates a setting; second icon launches an app).

Claim 12 adds the method steps: detect non-use/discontinuation of the physical controller → display the first grouping closer to the tracked body part → receive a control input that "appears as a direct touching body interaction" → launch the linked app or activate the linked setting.

Dependent claims add: 3D-button presentation (claims 2, 9, 13); up/down scroll arrows as pressable buttons (claims 3, 4, 14); display "within an apparent distance of a user's arm length" (claims 5–7, 10, 11); and determining apparent distance based on arm's length, user height, or a population average (claims 15–18).

The claims are drafted in broad, largely functional language ("operatively linked to launch," "appears closer to," "appears as a direct touching body interaction"). Under the Phillips claim-construction canon and the functional-claiming doctrine, such claim language is construed to cover any structure that performs the recited function — which substantially widens the prior-art exposure and strengthens the obviousness case.

The only meaningful differences from the combined prior art are (i) the specific conjunction of "different UI at closer distance when hands are used vs. controller" and (ii) "direct-touch launch of apps/settings." Each of these concepts individually is old; the question under § 103 is whether their combination was obvious.

5. Element-by-element mapping of the independent claims

5.1 Claim 1

5.2 Claim 8

Claim 8's only addition is that a first icon represents a VR platform system setting and is linked to activate that setting upon direct touch, while a second icon represents an app. The record shows VR settings panels with pressable 3D/2D buttons were routine (e.g., Meta Quest system settings; US20210405760A1's mode-selection affordances; US20190146578A1's HMD control UI). Applying the same known direct-touch activation mechanism to a settings icon is an obvious application of the same technique to a known class of icons — classic "obvious to try" with predictable results. Nothing in claim 8 requires any new technology beyond claim 1.

5.3 Claim 12

Bottom line: Every limitation of claims 1, 8, and 12 is disclosed across at most three references, and the combination of those references is a natural, predictable aggregation of known features.

6. The strongest combinations and the motivation to combine

Combination A — WO2022047436A1 + US11086406B1 + US10101803B2 (against claims 1, 2, 5–7, 8, 9, 10, 11)

• WO2022047436A1 supplies the 3D app-icon launcher in a 3D environment (claim 1 "grouping of icons"; claims 2/9 "3-dimensional button").
• US11086406B1 supplies the direct hand-touch interaction model: a tracked hand, gated by neutral→tracking→active states, directly selects and acts on target virtual objects (claim 1 "pushing, pulling, tapping, pressing or sliding action ... directly on the application icon").
• US10101803B2 supplies the mode-dependent placement of the UI: when the user's input mode is reach/touch (hands, no controller), the object group is drawn from far field to near field within arm's reach (claims 1, 5–7 "closer to a body part ... than ... when using a physical controller"; "within an apparent distance of a user's arm length").

Motivation: The '448 patent's own Background identifies the exact problem this combination solves — laser-pointing hand tracking is "slow to be recognized or not even recognized, difficult to quickly and accurately choose an application," and less intuitive than controller use. The prior art already contained each piece of the solution: (1) 3D launchers with 3D icons (WO2022047436A1) to signal pressability; (2) three-state hand gating (US11086406B1) to make direct hand presses reliable; and (3) near-field UI placement for reach/touch input (US10101803B2) to make the icons physically "touchable." A POSITA seeking to improve hand-tracked app selection would have combined these predictable elements with a reasonable expectation of success — the combination is the "simple substitution of one known element for another" yielding a predictable result (KSR). All three references are in the same field (VR/AR HCI), and US11086406B1 and US10101803B2 both expressly address the unreliability of indirect gesture/ray input, providing an express design incentive to move to direct-touch UI.

Combination B — US10101803B2 + US20210405760A1 + WO2022047436A1 (against claim 12 and dependent method claims)

• US10101803B2 alone teaches: detecting the controller being set aside (claim 12(a)); morphing a far-field object group into a near-field, arm's-reach display (claim 12(b) and claims 15–20); and receiving reach/touch selection input (claim 12(c)).
• US20210405760A1 adds the explicit context-detection engine: "context factors" such as hand tracking enabled, controllers not in use, and hand ready state trigger a transition between interaction modes — the precise "detecting that the user ... is not using or has discontinued use of a physical device controller" step.
• WO2022047436A1 adds the app-launcher context and the 3D app icons (claims 13–14).

Motivation: The problem of automatic, context-appropriate switching between controller-based and hand-based interaction was squarely addressed by both Google (US10101803B2, 2015) and Facebook/Meta (US20210405760A1, 2020). A POSITA implementing a hands-only launcher would apply these known switching mechanisms to the known 3D-icon launcher format. The "determining an apparent distance" limitations (claims 15–18: arm length, user height, population average) are nothing more than routine ergonomic calculations that US10101803B2 anticipates generically ("within reach"; near-field ≈ 1.5 ft) and that any VR developer would implement using well-known anthropometric data — a design choice, not an invention.

Combination C — Meta's own prior art (US11086406B1 + US11086392B1 + US20210405760A1 + US20220086205A1) (against claims 1, 8, 12)

Meta/Facebook's own portfolio, all pre-filing, discloses the complete hands-control paradigm the '448 patent claims: three-state hand gestures for direct virtual-object interaction (US11086406B1); virtual representations of user-interface devices driven by tracked hands (US11086392B1); automatic mode transitions based on controller availability and hand-ready state (US20210405760A1); and hand-tracked manipulation of UI in shared AR/VR workspaces (US20220086205A1). The accused "Direct Touch" feature is itself the commercial embodiment of this Meta art. That the same feature was independently developed from Meta's own prior-art lineage — and that the '448 patent adds essentially only the 3D-icon-launcher garnish from WO2022047436A1 — is powerful evidence of obviousness.

Motivation: These are same-assignee references disclosing components of one integrated system; combining them requires no inventive leap. Market pressure to eliminate controllers and improve hand-UI reliability (a problem acknowledged in the '448 patent's Background) supplied the reason.

Combination D — "old-art anchor" combination (US6346929B1 + US6337694B1 + modern VR references)

• US6346929B1 (2002) establishes that detecting a body part interacting with a displayed element to start a process was known for two decades before the '448 filing.
• US6337694B1 (2002) establishes scrolling controls.
• Adding these to WO2022047436A1/US11086406B1/US10101803B2 shows that the concepts of body-part-activated launch and scroll controls are not novel; the '448 claims merely dress old interaction concepts in VR clothing.

7. Dependent claims

• Claims 2, 9, 13 (3D button): WO2022047436A1 (3D app icons), US20190026004A1 (3D icons), US20130054319A1 (3D media guidance). "Lifting" a 2D icon to a 3D button to signal pressability was a known affordance-design technique; obvious.
• Claims 3, 4, 14 (up/down arrows as pressable buttons): US6337694B1 (scroll controls), US10101803B2 (hand-grasp/pull scrolling of lists, Figs. 9A–9E), and the '448 specification's own acknowledgment that up/down arrows are conventional UI elements. Rendering arrows as 3D pressable buttons follows the same obvious 2D→3D affordance technique as claims 2/9/13.
• Claims 5–7, 10, 11 (arm's-length apparent distance): US10101803B2 ¶[0053] (near-field display at ~1.5 ft — "within reach" of the user); US20190146578A1 (HMD control UI positioned for hand reach). The concept of placing touch-interactive UI at arm's length is a basic ergonomic principle.
• Claims 15–18 (distance based on arm length/height/average): routine anthropometric computation; US10101803B2 teaches distance-adaptive display based on input mode; nothing in the '448 specification discloses any non-obvious algorithm — it merely lists three conventional ways to estimate arm length ("based on average American height," "how far away physical controllers were when dangling," "user's height"). These are obvious design choices.

8. Counterarguments and their weaknesses

1. "No single reference discloses the entire combination." That is the standard for § 102, not § 103. KSR requires only that the combination be obvious, and here each reference addresses the same field and the same known problem; the '448 patent itself concedes the problem (imprecise laser-hands) was known, and the references (especially US10101803B2, US11086406B1, US20210405760A1) provide express or implicit reasons to combine (input-mode switching, hand-reliability gating, near-field placement for touch).
2. "The examiner considered these references." All 28 main citations are examiner-cited, and the claims were allowed. But the prosecution was extraordinarily short (~6.5 months, grant without apparent pre-grant publication as a B1), consistent with limited examination; and post-issuance § 103 challenges may present combinations and rationales (e.g., WO2022047436A1 combined with US11086406B1/US10101803B2) that the examiner did not articulate. Examiner allowance is not dispositive.
3. Secondary considerations. No evidence in the record of long-felt unmet need, copying, commercial success tied to the claimed features, or unexpected results. To the contrary, the rapid, independent commercial adoption of near-identical hand-touch launchers (including Meta's "Direct Touch" and Google's reach-and-touch paradigm from 2015) suggests the solution was driven by the known state of the art, not by the '448 disclosure.
4. Functional claiming. The broad functional language ("appears closer to," "operatively linked to launch," "direct touching body interaction") makes the claims especially vulnerable: they cover any implementation of a hand-touch app/settings launcher placed within reach, a category squarely within the combined teachings above.

9. Conclusion

Under 35 U.S.C. § 103, there is a strong case that claims 1, 8, and 12 of US11531448B1 — and all dependent claims — would have been obvious over the prior art cited in the patent's own record. The most powerful combinations are:

• Combination A: WO2022047436A1 (3D app-icon launcher) + US11086406B1 (three-state direct hand interaction) + US10101803B2 (mode-dependent far-field→near-field UI placement within arm's reach) — against claims 1, 2, 5–7, 8, 9, 10, 11.
• Combination B: US10101803B2 + US20210405760A1 (context-based controller-to-hands mode switching) + WO2022047436A1 — against claim 12 and method claims 13–20.
• Combination C: Meta's own pre-filing art (US11086406B1 + US11086392B1 + US20210405760A1 + US20220086205A1), optionally with WO2022047436A1 — against all three independent claims, and highly probative given the accused product's lineage.

A POSITA, motivated by the known deficiencies of laser-pointing hand tracking and by the known building blocks of 3D launchers, three-state hand gating, and reach/near-field UI placement, would have combined these elements with a reasonable expectation of success. The claims add no unexpected technical result; they repackage known VR interaction techniques in broad functional language. The primary risk to this invalidity theory is the absence in the record of an express teaching of the specific pairing "closer UI for hands vs. controller" in a single reference — but KSR's "obvious to try" and "known problem → known solution" rationales, together with the routine-design-choice character of the distance and 3D-button features, comfortably bridge that gap.

Sources: Google Patents record for US11531448B1 (https://patents.google.com/patent/US11531448B1/en); US10101803B2 full text (https://patents.google.com/patent/US10101803B2/en; https://uspto.report/patent/app/20170060230); US11086406B1 (https://patents.justia.com/patent/[11086406](/patent/11086406)); US20210405760A1 / US11256336B2 (https://patents.google.com/patent/US20210405760A1/en; https://FreePatentsOnline.com/y2021/0405760.html). Note that WO2022047436A1, US20190026004A1, US20160004300A1, US11086392B1, and US20190146578A1 are relied upon primarily from their titles/cited abstracts in the '448 record; full-text verification of those specific documents was not completed within the search budget and is flagged as a residual uncertainty.