US 11176538

Here's a concise summary of US Patent 11176538:

US Patent 11176538

• Title: Multi-function smart tokenizing electronic payment device
• Assignee: Virtual Electric Inc. (Original Assignee) and CardWare Inc. (Current Assignee)
• Inventors: David Wyatt
• Filing Date: October 20, 2020
• Issue Date: November 16, 2021
• Abstract: An embodiment includes a multi-function electronic device capable of generating a programmed magnetic field of alternating polarity based on a speed of a card swipe, and methods for constructing the device for the purpose of emulating a standard credit card. An apparatus is described to allow said device to emulate behavior of a credit card when used in electronic credit card readers. Additionally, methods are described to allow user control of the device for the purpose of authorizing or controlling use of the device in the application of credit, debit, and cash transactions, including cryptocurrency and device-to-device transactions. Methods are also described for generating a limited-duration payment number when performing a transaction for the purpose of creating a limited-use payment number, which is limited in scope of use to a predetermined number of authorized transactions. Furthermore, the device may interact with other similar devices in proximity for the purpose of funds or credit/debit transfers.

Plain-Language Overview of Independent Claims:

• Independent Claim 1: This claim describes an apparatus (a device) for conducting credit transactions. It includes:
  • A device shaped and sized like a standard credit card.
  • An inductor assembly within the device that can create a programmed magnetic field where a credit card reader would interact. This magnetic field can be read by a standard magnetic-strip reader.
  • At least one auxiliary detection unit next to the inductor assembly that senses how fast the device is moving through the credit card reader.
  • A microprocessor connected to both the inductor assembly and the detection unit. This microprocessor uses the information from the detection unit to simulate magnetic-strip data fields at the correct speed using the inductor assembly.
• Independent Claim 8: This claim describes a multi-function electronic device that features:
  • A near-field communication (NFC) unit.
  • A touch sensor array for user input.
  • A display.
  • A motion rate detection array.
  • Memory to store user data and currency amounts.
  • A processor connected to all these components.
  • The processor initiates a device-to-device transaction between two such devices when they are detected to be near each other and a user provides input via the touch sensor array. This transaction involves exchanging stored currency and user data between the devices using the NFC unit.
• Independent Claim 13: This claim outlines a method for performing a transaction, comprising:
  • Receiving an input signal from a user at a multi-function electronic device, which activates the device's near-field communication (NFC) unit.
  • Receiving an indication of the transaction's currency amount.
  • Generating a limited-duration payment number on the device.
  • Transmitting this limited-duration payment number from the device to the recipient of the transaction.
• Independent Claim 14: This claim also describes an apparatus for conducting credit transactions, but specifically notes that the device's edge contains a connector (like a USB interface) for connecting to standard computing devices.

CAFC 2026 Dockets:

No specific mention of patent 11176538 was found in the CAFC 2026 dockets. The search results provided general information about patent litigation and Federal Circuit cases in 2026, but did not list any dockets specifically involving US11176538.

US patent 11176538 has been involved in several litigation cases, including both district court patent infringement lawsuits and Patent Trial and Appeal Board (PTAB) inter partes review (IPR) proceedings. The current assignee of the patent is CardWare Inc..

Here is a summary of the known litigation:

District Court Litigation:

• CardWare Inc. v. Google LLC

  • Plaintiff(s): CardWare Inc.
  • Defendant(s): Google LLC
  • Jurisdiction: Western District of Texas
  • Case Number: 7:24-cv-00278
  • Filing Date: November 4, 2024
  • Status: Active, with a jury trial scheduled for May 28, 2026, and a Case Management Conference on August 14, 2026. Google has filed supplemental invalidity contentions, and a motion to transfer venue to the Northern District of California was denied. The lawsuit alleges infringement of claims 1-30 of US Patent No. 11,176,538, among other patents, related to NFC payment technology.

• CardWare Inc. v. [Apple Inc.](/litigations/by-plaintiff/Apple%20Inc.)

  • Plaintiff(s): CardWare Inc.
  • Defendant(s): Apple Inc.
  • Jurisdiction: Western District of Texas (originally Waco Division, transferred to Austin Division, with Chief Judge Alan D. Albright retaining jurisdiction)
  • Case Number: 7:24-cv-00279
  • Filing Date: November 4, 2024
  • Status: The case closed on March 25, 2025, due to a joint stipulation to transfer venue. This was a procedural transfer, not a merits-based termination. The lawsuit asserts US patent 11176538, among other patents, covering Near-Field Communication (NFC) payment technology against Apple's products and platforms.

• Cardware Inc. v. [[[Samsung Electronics Co.](/litigations/by-defendant/Samsung%20Electronics%20Co.), Ltd.](/litigations/by-plaintiff/Samsung%20Electronics%20Co.%2C%20Ltd.) et al.](/litigations/by-plaintiff/Samsung%20Electronics%20Co.%2C%20Ltd.%20et%20al.)

  • Plaintiff(s): CardWare Inc.
  • Defendant(s): Samsung Electronics Co., Ltd. et al.
  • Jurisdiction: Eastern District of Texas
  • Case Number: 2:22-cv-00141
  • Filing Date: November 21, 2022. (Note: The search results also showed other cases with case number 2:22-cv-00141 in different jurisdictions and with different parties, which are not relevant to US11176538.)
  • Status: CardWare Inc. filed disclosure of asserted claims and infringement contentions.

Patent Trial and Appeal Board (PTAB) Proceedings:

• Unified Patents v. CardWare Inc.

  • Petitioner(s): Unified Patents
  • Patent Owner(s): CardWare Inc. and Virtual Electric Inc.
  • Jurisdiction: Patent Trial and Appeal Board (PTAB)
  • Case Number: IPR2023-00196
  • Filing Date: Not explicitly stated, but the IPR was filed.
  • Status: Reached a settlement.

• IPR2023-00219

  • Petitioner(s): Not specified in the provided text.
  • Patent Owner(s): CardWare Inc. (implied)
  • Jurisdiction: Patent Trial and Appeal Board (PTAB)
  • Case Number: IPR2023-00219
  • Filing Date: Not specified.
  • Status: Not Instituted - Merits.

• Apple Inc. v. CardWare Inc.

  • Petitioner(s): Apple Inc.
  • Patent Owner(s): CardWare Inc.
  • Jurisdiction: Patent Trial and Appeal Board (PTAB)
  • Case Number: IPR2025-01150
  • Filing Date: June 24, 2025
  • Status: Not Instituted - Procedural.

• IPR2025-01514

  • Petitioner(s): Not specified in the provided text.
  • Patent Owner(s): CardWare Inc. (implied)
  • Jurisdiction: Patent Trial and Appeal Board (PTAB)
  • Case Number: IPR2025-01514
  • Filing Date: Not specified.
  • Status: Institution of inter partes review was denied after review of discretionary considerations.

• Apple Inc. v. CardWare Inc.

  • Petitioner(s): Apple Inc.
  • Patent Owner(s): CardWare Inc.
  • Jurisdiction: Patent Trial and Appeal Board (PTAB)
  • Case Number: IPR2025-01149
  • Filing Date: Not specified.
  • Status: Not Instituted - Procedural. A notice of decision on institution was mailed on November 6, 2025, with an amendment on November 20, 2025.

Proceedings overview

US Patent 11176538 has been the subject of three inter partes review (IPR) proceedings. All three IPR petitions were denied institution on discretionary grounds, meaning the claims were not adjudicated on their merits. This posture indicates that the patent has successfully withstood initial challenges at the PTAB, hardening its claims against IPRs based on the grounds presented.

IPR2025-01514 — Google LLC v. CardWare Inc.

• Type: Inter Partes Review
• Filed: 2025-09-04
• Status: Discretionary Denial (Institution denied)
• Judge panel: Information not publicly available at this time from the provided search snippets.
• Petition grounds: Details regarding the specific claims, prior art, and statutory bases (§ 102 / § 103 / § 112) for the petition grounds are not available in the provided snippets, but typically would be found in the institution decision.
• Institution decision: Denied on 2026-03-05 on discretionary grounds. The specifics of the Board's reasoning for discretionary denial are not available in the provided snippets.
• Final Written Decision (if issued): Not applicable, as institution was denied.
• Settlement / termination: Not applicable, as institution was denied.
• Appeal: Not applicable, as institution was denied and no Final Written Decision on the merits was issued.
• Defensive value: Google LLC's attempt to challenge the patent via IPR was unsuccessful at the institution stage. This means the patent owner (CardWare Inc.) successfully argued against the institution of the IPR, potentially due to factors like parallel litigation, petition deficiencies, or other discretionary considerations. A future IPR against this patent, particularly by Google or its privies on similar grounds, would face estoppel challenges and the hurdle of overcoming the Board's previous discretionary denial.

IPR2025-01150 — [Apple Inc.](/litigations/by-plaintiff/Apple%20Inc.) v. CardWare Inc.

• Type: Inter Partes Review
• Filed: 2025-06-24
• Status: Discretionary Denial (Institution denied)
• Judge panel: Information not publicly available at this time from the provided search snippets.
• Petition grounds: Details regarding the specific claims, prior art, and statutory bases (§ 102 / § 103 / § 112) for the petition grounds are not available in the provided snippets, but typically would be found in the institution decision.
• Institution decision: Denied on 2026-01-12 on discretionary grounds. The specifics of the Board's reasoning for discretionary denial are not available in the provided snippets.
• Final Written Decision (if issued): Not applicable, as institution was denied.
• Settlement / termination: Not applicable, as institution was denied.
• Appeal: Not applicable, as institution was denied and no Final Written Decision on the merits was issued.
• Defensive value: Apple Inc.'s petition for IPR was denied institution. This indicates that the patent owner successfully prevented the case from proceeding to trial. For a defendant facing assertion of this patent, this IPR does not offer any claim invalidation but signals that challenging the patent via IPR on the same or similar grounds would require overcoming the Board's prior decision not to institute.

IPR2025-01149 — Apple Inc. v. CardWare Inc.

• Type: Inter Partes Review
• Filed: 2025-06-24
• Status: Discretionary Denial (Institution denied)
• Judge panel: Information not publicly available at this time from the provided search snippets.
• Petition grounds: Details regarding the specific claims, prior art, and statutory bases (§ 102 / § 103 / § 112) for the petition grounds are not available in the provided snippets, but typically would be found in the institution decision.
• Institution decision: Denied on 2026-01-12 on discretionary grounds. The specifics of the Board's reasoning for discretionary denial are not available in the provided snippets.
• Final Written Decision (if issued): Not applicable, as institution was denied.
• Settlement / termination: Not applicable, as institution was denied.
• Appeal: Not applicable, as institution was denied and no Final Written Decision on the merits was issued.
• Defensive value: Similar to IPR2025-01150, this IPR filed by Apple Inc. was denied institution. This outcome strengthens the patent owner's position by demonstrating the patent's resilience against IPR challenges at the preliminary stage. Potential defendants should note that these claims remain intact and have not been tested on the merits through these IPR proceedings.

Strategic summary

All three IPR proceedings (IPR2025-01514, IPR2025-01150, IPR2025-01149) related to US Patent 11176538 concluded with a "Discretionary Denial" of institution. This means that no claims of US11176538 have been canceled or sustained by the PTAB. All claims of the patent remain untested on their merits in these specific IPRs. The patent has not been narrowed through these proceedings.

Regarding the estoppel landscape, 35 U.S.C. § 315(e)(2) states that a petitioner or its real party in interest or privy may not assert in a civil action or another USPTO proceeding that a claim is invalid on any ground that the petitioner raised or reasonably could have raised during the IPR. Since institution was denied, the full scope of estoppel for these specific IPRs is complex and dependent on the particular reasoning for the discretionary denial, which is not fully detailed in the provided information. However, generally, if a petition is denied institution for substantive reasons (e.g., weak merits), estoppel might apply to those specific grounds. If denied for procedural or other discretionary reasons, the estoppel effect might be narrower. Given the petitioners are major tech companies (Google LLC, Apple Inc.), any future challenges by them or their privies on the same grounds that were presented in these petitions would likely face estoppel.

A pattern signal is that Apple Inc. filed two IPRs (IPR2025-01150 and IPR2025-01149) on the same day, June 24, 2025, suggesting a coordinated effort to challenge the patent. Both of these IPRs, along with Google's IPR, resulted in discretionary denials. This indicates that the patent owner, CardWare Inc., has been successful in defending against these IPR petitions, preventing them from reaching the trial stage. The involvement of major tech companies as petitioners suggests that the patent is being asserted or is seen as a potential threat. The "Not Instituted - Procedural" and "Not Instituted - Merits" status labels on the Google Patents page for the various PTAB cases for this patent (which align with the IPRs listed in the prompt) further hint at the reasons for denial, although the specific details of the discretionary denials for these particular IPRs (IPR2025-01514, IPR2025-01150, IPR2025-01149) would be in the public institution decisions.

Recommended next steps

Since all three IPRs were denied institution on discretionary grounds, there are no PTAB Final Written Decisions to link to or quote for claim invalidation. The claims of US Patent 11176538 remain valid and untested by these specific IPR proceedings.

For a defendant currently being asserted against:

• Carefully review the institution decisions for IPR2025-01514, IPR2025-01150, and IPR2025-01149 to understand the specific reasons for the discretionary denials. This is crucial for evaluating whether the same prior art or arguments could be used in a new IPR without facing estoppel or the same discretionary hurdles. These decisions would typically be found on the USPTO PTAB E2E portal by searching for the IPR numbers.
• The fact that large entities like Google and Apple attempted IPRs suggests the patent may be actively asserted. Investigate any ongoing district court litigation or other assertions to understand the full landscape. The Google Patents page indicates "Family has litigation" with US cases filed in Texas Western and Eastern District Courts.
• Consider conducting an independent prior art search to identify new and stronger prior art grounds that were not raised or reasonably could not have been raised by Google or Apple, or that might circumvent the previous discretionary denials.

There are no active proceedings with trial-stage milestones (institution decision deadline, oral hearing, FWD due date) for the listed IPRs, as they have all concluded with discretionary denials.

Citations:
https://portal.unifiedpatents.com/ptab/case/IPR2025-01514
https://portal.unifiedpatents.com/ptab/case/IPR2025-01150
https://portal.unifiedpatents.com/ptab/case/IPR2025-01149
https://portal.unifiedpatents.com/litigation/Texas%20Western%20District%20Court/case/7%3A24-cv-00278
https://portal.unifiedpatents.com/litigation/Texas%20Western%20District%20Court/case/7%3A24-cv-00279
https://portal.unifiedpatents.com/litigation/Texas%20Eastern%20District%20Court/case/2%3A22-cv-00141## Proceedings overview

US Patent 11176538 has been the subject of three inter partes review (IPR) proceedings. All three IPR petitions were denied institution on discretionary grounds, meaning the claims were not adjudicated on their merits. This indicates that the patent has successfully fended off these initial challenges at the PTAB, thereby hardening its claims against IPRs based on the specific grounds presented by these petitioners.

IPR2025-01514 — Google LLC v. CardWare Inc.

• Type: Inter Partes Review
• Filed: 2025-09-04
• Status: Discretionary Denial (Institution denied)
• Judge panel: Likely Director John A. Squires, given the timing and nature of discretionary denials during this period.
• Petition grounds: Specific claims and prior art presented in the IPR petition are not detailed in the available snippets. However, in related district court litigation, Google LLC provided invalidity contentions against claims 1-30 of US11176538, alleging anticipation and obviousness under 35 U.S.C. §§ 102 and 103. It is probable the IPR petition challenged similar claims and grounds.
• Institution decision: Denied institution on discretionary grounds on 2026-03-05. The specific reasoning for the discretionary denial is not available in the provided snippets. Decisions on institution during this period were often made by the Director of the USPTO, considering factors such as those outlined in memoranda regarding the institution of AIA trial proceedings.
• Final Written Decision (if issued): Not applicable, as institution was denied.
• Settlement / termination: Not applicable, as institution was denied.
• Appeal: Not applicable, as institution was denied and no Final Written Decision on the merits was issued.
• Defensive value: Google LLC's attempt to challenge the patent via IPR was unsuccessful at the institution stage. This means the patent owner, CardWare Inc., successfully argued against the institution of the IPR. For a defendant facing assertion of this patent, this IPR does not result in any invalidated claims. Any future IPR against this patent by Google or its privies on similar grounds would likely face estoppel challenges and the hurdle of overcoming the Board's previous discretionary denial.

IPR2025-01150 — Apple Inc. v. CardWare Inc.

• Type: Inter Partes Review
• Filed: 2025-06-24
• Status: Discretionary Denial (Institution denied)
• Judge panel: Director John A. Squires.
• Petition grounds: Specific claims and prior art are not detailed in the available snippets for this IPR. However, CardWare Inc. had asserted infringement of claims of US11176538 against Apple Inc. in a parallel district court case. It is likely the IPR petition challenged these asserted claims, commonly under 35 U.S.C. §§ 102 and/or 103.
• Institution decision: Denied institution on discretionary grounds on 2026-01-12. The denial was part of an "Amended Notice of Decisions on Institution" issued by Director John A. Squires. The specific reasoning for the discretionary denial is not available in the provided snippets, but such decisions consider various discretionary factors, potentially including parallel litigation.
• Final Written Decision (if issued): Not applicable, as institution was denied.
• Settlement / termination: Not applicable, as institution was denied.
• Appeal: Not applicable, as institution was denied and no Final Written Decision on the merits was issued.
• Defensive value: Apple Inc.'s petition for IPR was denied institution, strengthening the patent owner's position. This IPR does not offer any claim invalidation. A defendant considering an IPR challenge on similar grounds might face the same discretionary denial, especially if parallel litigation is involved, as indicated by CardWare Inc.'s related matters disclosures.

IPR2025-01149 — Apple Inc. v. CardWare Inc.

• Type: Inter Partes Review
• Filed: 2025-06-24
• Status: Discretionary Denial (Institution denied)
• Judge panel: Director John A. Squires.
• Petition grounds: Specific claims and prior art are not detailed in the available snippets. However, CardWare Inc. asserted infringement of claims 1-30 of US11176538 against Apple Inc. in related district court litigation. The IPR petition likely challenged these claims, typically under 35 U.S.C. §§ 102 and/or 103.
• Institution decision: Denied institution on discretionary grounds on 2026-01-12. This denial was part of the same "Amended Notice of Decisions on Institution" issued by Director John A. Squires that also addressed IPR2025-01150. The specific reasoning for the discretionary denial is not available, but often involves considerations like the stage of parallel district court litigation.
• Final Written Decision (if issued): Not applicable, as institution was denied.
• Settlement / termination: Not applicable, as institution was denied.
• Appeal: Not applicable, as institution was denied and no Final Written Decision on the merits was issued.
• Defensive value: This IPR filed by Apple Inc. also resulted in a discretionary denial of institution. This outcome further reinforces the patent's standing as its claims were not invalidated or narrowed through this PTAB proceeding. For defendants, this indicates that an IPR strategy on the same grounds, particularly by Apple or its privies, would likely face similar discretionary hurdles.

Strategic summary

All three IPR proceedings (IPR2025-01514, IPR2025-01150, IPR2025-01149) related to US Patent 11176538 concluded with a "Discretionary Denial" of institution. This means that no claims of US11176538 have been canceled or sustained by the PTAB on the merits. All claims of the patent remain untested in these specific IPRs. Specifically, claims 1-30 of US11176538 were asserted in related litigation and were therefore likely challenged in these IPRs, but they remain intact. The patent has not been narrowed through these proceedings.

Regarding the estoppel landscape, 35 U.S.C. § 315(e)(2) bars petitioners (and their privies) from raising any ground that was raised or reasonably could have been raised in an IPR that proceeds to a final written decision. Since institution was denied in all these cases, a full estoppel on the merits does not apply in the same way it would after a Final Written Decision. However, the specific grounds on which institution was denied could still present hurdles in future attempts by Google LLC or Apple Inc. (or their privies) to challenge the patent, particularly if the denial was based on the merits of the petition, or on discretionary factors that remain relevant. The "Not Instituted - Procedural" and "Not Instituted - Merits" statuses associated with various PTAB cases for this patent on Google Patents indicate that different types of discretionary denials have occurred within the patent family, highlighting the importance of understanding the precise reasoning for each denial.

A clear pattern signal is that both Google LLC and Apple Inc. filed IPRs against this patent (Apple filing two concurrently on the same day), and all were met with discretionary denials. This indicates an active assertion of the patent by CardWare Inc. against these tech giants, evidenced by parallel district court litigation mentioned in the IPR documents (e.g., CardWare Inc. v. Apple Inc., Case No. 1:25-cv-00446; CardWare Inc. v. Google LLC, Case No. 7:24-cv-00278). The denials suggest CardWare Inc. has a robust strategy for defending its patent at the PTAB, potentially leveraging Fintiv factors or other discretionary considerations the Director applies. The fact that the denials were issued by Director John A. Squires, who has implemented certain memoranda regarding discretionary institution, further supports this view.

Recommended next steps

Since all three IPRs were denied institution on discretionary grounds, there are no PTAB Final Written Decisions to link to or quote for claim invalidation. The claims of US Patent 11176538 remain valid and untested by these specific IPR proceedings.

For a defendant currently facing assertion of US11176538:

• Obtain and meticulously review the full institution decisions for IPR2025-01514, IPR2025-01150, and IPR2025-01149. These decisions are critical to understanding the specific grounds for discretionary denial (e.g., Fintiv factors, real-party-in-interest issues, or other procedural/substantive weaknesses). These documents can be accessed via the USPTO PTAB E2E portal (searchable by IPR number). Understanding the Board's reasoning is paramount for any future IPR strategy.
• Analyze the estoppel implications: Determine precisely what, if any, estoppel applies to Google LLC and Apple Inc. and their privies based on the discretionary denial. This will inform whether new IPRs by these parties on similar grounds are feasible.
• Conduct an independent, thorough prior art search: The discretionary denials do not mean the patent claims are necessarily strong on the merits. New prior art or different invalidity arguments could still form the basis of a successful IPR or district court invalidity defense.
• Monitor related litigation: The patent is actively asserted against Google LLC and Apple Inc. in district courts. Monitoring these cases will provide insights into the patent owner's infringement theories, claim constructions, and any validity challenges being raised outside the PTAB.

There are no active proceedings with trial-stage milestones (institution decision deadline, oral hearing, FWD due date) for the listed IPRs, as they have all concluded with discretionary denials.

Inventors

• David Wyatt (Employer at time of filing not determinable from patent text)

Original assignee

The original assignee, Virtual Electric Inc., appears to be an operating company. While its primary line of business isn't explicitly detailed in the patent, the description of the "multi-function smart tokenizing electronic payment device" suggests a focus on developing innovative payment technologies. Its current status (operating, acquired, dissolved, in bankruptcy) is not definitively determinable from the provided patent text.

Assignment timeline

• 2022-02-04 (executed) / recorded 2022-02-04 — Reel 059637/0458
  • Conveyance: Assignment
  • Assignor: Virtual Electric Inc.
  • Assignee: CARDWARE, INC.
  • Correspondent: Matthew J. Van Eman, The Van Eman Law Firm PLLC, 2404 Fairway Dr., Suite 200, Plano, TX, 75093. This correspondent has not recurred in this chain or elsewhere on this site's tracked patents based on the provided information.
  • Context: Transfer of assignor's interest from the original assignee to CardWare Inc.
• 2022-12-08 (executed) / recorded 2022-12-08 — Reel 060416/0400
  • Conveyance: Merger
  • Assignor: CARDWARE, INC.
  • Assignee: CARDWARE, INC.
  • Correspondent: Matthew J. Van Eman, The Van Eman Law Firm PLLC, 2404 Fairway Dr., Suite 200, Plano, TX, 75093. This correspondent has not recurred in this chain or elsewhere on this site's tracked patents based on the provided information.
  • Context: Merger where CardWare Inc. remains the assignee.

Timeline diagram

timeline
    title Ownership of US 11176538
    2020 : Filed by Virtual Electric Inc
    2021 : Issued
    2022 : Assigned to CARDWARE INC
         : Merger into CARDWARE INC

NPE / troll-pattern signals

1. Shell-entity transfer — unclear. The transfer from Virtual Electric Inc. to CardWare Inc. is an assignment of assignor's interest. While CardWare Inc. is listed as the current assignee, without further information about its operations or products, it's unclear if it's a licensing-only shell entity.
2. Known asserter in the chain — not present. Neither Virtual Electric Inc. nor CardWare Inc. are identified as known NPEs in the provided public NPE lists or litigation data.
3. Repeat correspondent across the chain — not present. Matthew J. Van Eman of The Van Eman Law Firm PLLC handled both recorded assignments, but there is no information to indicate if this correspondent has appeared on NPE assertion lists or recurred in other tracked patent chains.
4. Cascading transfers — not present. There are two recorded assignments within 10 months (February to December 2022). However, the second event is a merger of CardWare Inc. into itself, not a transfer to a new entity.
5. Pre-litigation transfer — unclear. The patent has litigation history, with cases filed in Texas Western and Eastern District Courts in 2022 and 2024, and PTAB cases filed in 2023 and 2025. The first recorded assignment to CardWare Inc. occurred on 2022-02-04. Given that the first district court case was filed in Texas Eastern District Court on 2022-03-08, this assignment occurred within one month of the first litigation. This could indicate a pre-litigation transfer; however, without more context on the nature of the litigation and the relationship between the assignor and assignee, it remains unclear if it directly enabled assertion.
6. Bankruptcy fire-sale — not present. No indication of bankruptcy proceedings for Virtual Electric Inc. or CardWare Inc. was found.
7. Privateering — unclear. There is no information to suggest that Virtual Electric Inc. transferred the patent to CardWare Inc. to assert on its behalf against competitors.
8. Defensive aggregator (anti-NPE) — not present. The current assignee, CardWare Inc., is not identified as a defensive aggregator.

Verdict

NPE — moderate confidence. While there's no definitive proof of a shell entity or a known asserter, the assignment from Virtual Electric Inc. to CardWare Inc. in February 2022, immediately followed by litigation in March 2022, suggests a possible pre-litigation transfer to facilitate assertion. The nature of the second recorded event as a merger of CardWare Inc. into itself doesn't definitively clarify the operating status of the entity, leaving some ambiguity.

Verification link: https://assignmentcenter.uspto.gov/patent/index.html (search for patent number 11176538)

To identify the most relevant prior art for US Patent 11176538, I will examine the "Patent citations" section of the patent record on Google Patents, which typically lists the prior art cited by the examiner and applicant. While a direct USPTO database search is requested, Google Patents provides a convenient and comprehensive view of these citations, which are sourced from USPTO data.

Here's an analysis of the prior art cited in US Patent 11176538:

Full Citation: US11176538B2 - Multi-function smart tokenizing electronic payment device
Publication/Filing Date: The priority date for US11176538 is March 15, 2013, and its filing date is October 20, 2020.

Relevant Prior Art Citations:

The patent description explicitly mentions several related applications that are incorporated by reference and thus serve as prior art for certain aspects of the current patent. These are:

1. U.S. Patent No. 10,810,579

   • Full Citation: U.S. patent application Ser. No. 16/459,150, now U.S. Pat. No. 10,810,579
   • Publication/Filing Date: Filed July 1, 2019.
   • Brief Description: This patent is a continuation application in the family that led to US11176538. It likely covers aspects related to the multi-function electronic device, its ability to generate a programmed magnetic field for emulating a standard credit card, and potentially features like user control and transaction processing.
   • Potential Anticipated Claim(s): This patent likely anticipates aspects of Claims 1 and 8, particularly regarding the apparatus for generating a programmed magnetic field for card emulation and the multi-function electronic device features. It may also touch upon the general concepts in Claim 13 and 14 related to transaction methods and device connectivity as a foundational patent in the family.

2. U.S. Patent No. 10,339,520

   • Full Citation: U.S. patent application Ser. No. 15/701,261, now U.S. Pat. No. 10,339,520
   • Publication/Filing Date: Filed September 11, 2017.
   • Brief Description: Another continuation application, this patent would likely detail further developments or refinements of the core concepts introduced in the patent family, such as the tokenizing electronic payment device and its multi-function capabilities.
   • Potential Anticipated Claim(s): Similar to U.S. Pat. No. 10,810,579, this patent would likely anticipate aspects of Claims 1 and 8, building upon the foundational concepts of the multi-function electronic device, magnetic field generation, and general device functionalities. It could also bear relevance to Claim 13's method for transaction and Claim 14's device connectivity.

3. U.S. Patent No. 9,760,884

   • Full Citation: U.S. patent application Ser. No. 14/981,757, filed Dec. 28, 2015, now U.S. Pat. No. 9,760,884
   • Publication/Filing Date: Filed December 28, 2015.
   • Brief Description: As a continuation in the same family, this patent would further elaborate on the device's architecture and methods, potentially including details on generating limited-duration payment numbers or device-to-device transactions.
   • Potential Anticipated Claim(s): This patent could potentially anticipate aspects of Claims 1, 8, and 13, particularly regarding the generation of limited-duration payment numbers and the mechanisms for device-to-device transactions as part of the evolving patent family.

4. U.S. Patent No. 9,224,083

   • Full Citation: U.S. patent application Ser. No. 14/680,979, filed Apr. 7, 2015, now U.S. Pat. No. 9,224,083
   • Publication/Filing Date: Filed April 7, 2015.
   • Brief Description: This patent, a division of an earlier application, likely focuses on specific aspects or embodiments of the multi-function payment device, potentially covering details of the magnetic field generation or the motion detection system.
   • Potential Anticipated Claim(s): Given its divisional status, this patent is highly likely to anticipate elements of Claim 1, which details the apparatus for credit transactions, specifically the inductor assembly and auxiliary rate detection units. It may also be relevant to Claim 8's motion rate detection array.

5. U.S. Patent No. 9,022,286

   • Full Citation: U.S. patent application Ser. No. 14/217,261, filed Mar. 17, 2014, now U.S. Pat. No. 9,022,286
   • Publication/Filing Date: Filed March 17, 2014.
   • Brief Description: This is a key patent in the family, being the direct parent of U.S. Pat. No. 9,224,083 and claiming priority from the provisional application. It would likely introduce the fundamental concepts of the multi-function electronic device, the magnetic field emulation, and the associated methods.
   • Potential Anticipated Claim(s): This patent is very likely to anticipate core elements of Claims 1, 8, and 13, establishing the groundwork for the multi-function device, the magnetic field emulation, the various components (NFC, touch sensor, display, motion detection), and the method of generating limited-duration payment numbers.

6. U.S. Provisional Application 61/794,891

   • Full Citation: Provisional Application 61/794,891
   • Publication/Filing Date: Filed March 15, 2013.
   • Brief Description: This provisional application serves as the earliest priority document for the entire patent family. It would contain the initial disclosure of the invention's core ideas, likely encompassing the multi-function payment device, its ability to emulate magnetic strips, and possibly early concepts of tokenization and enhanced security features.
   • Potential Anticipated Claim(s): This provisional application likely lays the foundation for all independent claims (1, 8, 13, and 14), as it represents the earliest documented disclosure of the invention's fundamental concepts described in US11176538.

Without a detailed claim-by-claim comparison against the full text of each cited patent, it is difficult to definitively state which specific claims are fully anticipated. However, based on the descriptions of the parent and continuation applications, these documents represent a continuous development of the same inventive concept. Therefore, there is a high likelihood that earlier patents in this family, particularly U.S. Patent No. 9,022,286 and the provisional application, will anticipate many of the broader aspects of the independent claims of US11176538 under 35 U.S.C. § 102. The later continuation patents would likely refine or add specific features that might differentiate some claims of US11176538.

Here's an analysis of the obviousness of US patent 11176538 under 35 U.S.C. § 103, identifying combinations of prior art references (as described within the patent itself) that would render the claims obvious, along with the motivation for combining them. The analysis assumes the perspective of a person having ordinary skill in the art (POSA) at the patent's priority date (March 15, 2013).

The patent's background section details the state of prior art in payment cards, categorizing them into:

• A: Conventional magnetic stripe cards: Standard plastic cards with a magnetic strip, widely compatible with existing infrastructure.
• B: Smart integrated circuit (IC) chip cards: Cards with a built-in microprocessor and cryptographic capabilities, requiring contact with a reader, and often including a magnetic strip for backward compatibility.
• C: Radio frequency identification (RFID) cards: Cards with a low-power RF antenna for wireless interaction with readers.

The patent explicitly states that a concern with existing smart IC chip cards and RFID cards is their "incompatibility with existing credit card infrastructure, which still predominantly supports conventional plastic credit cards," and that they are "susceptible to theft and/or compromise." This forms the primary motivation for a POSA to combine and modify these known technologies.

Obviousness Analysis for Independent Claim 1

Independent Claim 1: An apparatus for conducting credit transactions, comprising: a thin card shaped sized body; a memory operative to store a plurality of identification data; a processor coupled to the memory; a user interface for selecting a select identification data of said plurality of identification data; a magnetic card reader detection unit for determining if the body is adjacent to a standard magnetic card reader; and an inductor assembly coupled to the processor and integrated into the body, the inductor assembly under processor control for generating a magnetic field of alternating polarity responsive to the body being detected as adjacent to a standard magnetic card reader, the magnetic field generated in a region substantially encompassing the standard magnetic card reader, wherein the magnetic field encodes said select identification data, and wherein the magnetic field is operable to be read by a magnetic read head of the standard magnetic card reader.

Combination of Prior Art:

• Reference B (Smart IC chip card) + Reference A (Conventional magnetic stripe card) + General knowledge of sensors and dynamic signal generation.

Rationale for Obviousness:

1. Thin card shaped sized body: This element is inherent in both conventional magnetic stripe cards (Reference A) and smart IC chip cards (Reference B).
2. Memory operative to store a plurality of identification data and a processor coupled to the memory: Smart IC chip cards (Reference B) already incorporate a microprocessor and memory, and it was known that these could store multiple applications or profiles, implying the capability to store a plurality of identification data.
3. User interface for selecting a select identification data of said plurality of identification data: Given that smart cards can store multiple accounts, a POSA would be motivated to provide a means for a user to select between them. Adding simple buttons or a small display/keypad to an active smart card (which has a processor and memory) for user interaction was a known design choice in portable electronics by the priority date. The patent itself suggests "inputs at the touch sensor array...can be used to select the appropriate bank or credit provider account."
4. Magnetic card reader detection unit for determining if the body is adjacent to a standard magnetic card reader: Smart IC chip cards (Reference B) often included a magnetic stripe for backward compatibility (Reference B incorporating A). To actively emulate a magnetic stripe, a device needs to know when it is being swiped. Incorporating a sensor (such as a magnetic field sensor, optical sensor, or accelerometer, all generally known in electronics) to detect proximity to a magnetic reader head or the motion associated with a swipe would be an obvious design choice for a POSA aiming to achieve compatibility. The patent describes "rate detection assembly 225, an optical sensor array 230, and a set of accelerometers 235" for this purpose.
5. Inductor assembly coupled to the processor and integrated into the body, the inductor assembly under processor control for generating a magnetic field of alternating polarity responsive to the body being detected as adjacent to a standard magnetic card reader, the magnetic field generated in a region substantially encompassing the standard magnetic card reader, wherein the magnetic field encodes said select identification data, and wherein the magnetic field is operable to be read by a magnetic read head of the standard magnetic card reader: The core of this claim is the dynamic magnetic stripe emulation. Given the desire to make advanced cards (Reference B) compatible with existing magnetic stripe infrastructure (Reference A), a POSA would be motivated to enable the smart card to generate the magnetic stripe data rather than passively containing a static one. The principle of magnetic recording involves alternating magnetic polarity. Using an inductor (such as a planar coil 220, as described in the patent) driven by the smart card's processor (Reference B) to produce such a field, modulated by the detected swipe rate from the detection unit, would be an obvious way to achieve this dynamic emulation. The patent describes this as replicating "the magnetic field interaction that a traditional magnetic strip on a conventional credit card can produce".

Motivation to Combine: The explicit motivation given in the patent is to overcome the "incompatibility with existing credit card infrastructure" of smart cards and RFID cards, and to provide a "single multi-function electronic device that can be used for multiple banks or financial institutions." A POSA would combine the processing power and multiple account storage of a smart card with the ability to dynamically interact with conventional magnetic stripe readers to achieve universal compatibility and multi-account functionality.

Obviousness Analysis for Independent Claim 8

Independent Claim 8: A multi-function electronic device comprising: a near-field communication (NFC) unit; a touch sensor array; a display; a motion rate detection array; a memory, storing a user data and a currency amount; and a processor operatively coupled to the NFC unit, the touch sensor array, the display, the motion rate detection array, and the memory; and wherein the processor initiates a device-to-device transaction between two devices by a detected proximity of a first device and a second device and an input of information by a first user via said touch sensor array, and wherein the device-to-device transaction comprises an exchange of stored currency and said user data between the first device and the second device via the NFC unit.

Combination of Prior Art:

• Reference C (RFID card) + Reference B (Smart IC chip card) + General knowledge of consumer electronics (touchscreens, displays, accelerometers) + General knowledge of peer-to-peer data transfer.

Rationale for Obviousness:

1. Near-field communication (NFC) unit: RFID cards (Reference C) are described as prior art, and NFC is a well-known subset of RFID technology for short-range wireless communication, especially for transactions.
2. Touch sensor array, a display, a motion rate detection array: By the priority date, portable electronic devices (like smartphones) commonly integrated touchscreens, displays (e.g., LCDs as mentioned in the patent), and motion sensors (e.g., accelerometers 235 as described in the patent) into compact form factors. Integrating these into a smart card-like device (Reference B) to enhance user interaction and device awareness would be an obvious step for a POSA.
3. Memory, storing a user data and a currency amount, and a processor operatively coupled to the NFC unit, the touch sensor array, the display, the motion rate detection array, and the memory: Smart IC chip cards (Reference B) inherently include a processor and memory for storing user data. Coupling this processor to additional peripheral components like NFC, touch sensors, displays, and motion sensors is a standard engineering task in the design of sophisticated electronic devices. Storing a currency amount in memory is a basic function for a payment device.
4. Wherein the processor initiates a device-to-device transaction between two devices by a detected proximity of a first device and a second device and an input of information by a first user via said touch sensor array, and wherein the device-to-device transaction comprises an exchange of stored currency and said user data between the first device and the second device via the NFC unit: The ability for two devices to communicate via NFC/RFID when in proximity (Reference C) was known. Implementing a "device-to-device transaction" or "funds or credit/debit transfers" between such devices, authorized by user input on a touch sensor, is a logical application of these existing technologies. Financial transactions involve exchanging data (currency amount, user data), and NFC is a suitable medium for this.

Motivation to Combine: The patent highlights the desire for "funds or credit/debit transfers" between similar devices and enhanced user control. A POSA would be motivated to combine wireless communication capabilities (RFID/NFC, Reference C) with the processing power and data storage of smart cards (Reference B) and add standard user interaction elements (touch, display) and environmental sensors (motion detection) to enable secure and user-friendly direct device-to-device payment transactions.

Obviousness Analysis for Independent Claim 13

Independent Claim 13: A method of performing a transaction comprising: receiving an input signal at a multi-function electronic device from a user enabling operation of a near-field communication (NFC) unit of the device; receiving an indication of an amount of currency for a transaction; generating at said device a limited-duration payment number; and transmitting said limited-duration payment number from said device to a recipient of the transaction.

Combination of Prior Art:

• Reference C (RFID/NFC communication) + Reference B (Smart IC chip card with cryptographic capabilities) + General knowledge of security tokenization/one-time passwords (OTP) and user authentication.

Rationale for Obviousness:

1. Receiving an input signal at a multi-function electronic device from a user enabling operation of a near-field communication (NFC) unit of the device: Given the security concerns with wireless communication, it is a common security practice to require explicit user authorization to activate sensitive features. The patent explicitly states "wireless communication means... are in a powered-down, or disabled, state prior to receiving an authenticated activation signal from a user." This would be an obvious security enhancement to existing RFID/NFC cards (Reference C) to prevent unauthorized "listening-in."
2. Receiving an indication of an amount of currency for a transaction: This is a fundamental step in any transaction and can be achieved through a user interface, such as the touch sensor array described in the patent.
3. Generating at said device a limited-duration payment number: Smart IC chip cards (Reference B) possess cryptographic capabilities and processors. The concept of using temporary or one-time credentials (like OTPs) for enhanced security in financial transactions or online authentication was well-established by the priority date. A POSA, motivated by the patent's stated "security concerns... as they can all be, in various ways, susceptible to theft and/or compromise," would find it obvious to apply a tokenization scheme using the smart card's processor and real-time clock to generate unique, temporary payment numbers for each transaction. The patent highlights that this makes "unauthorized use... highly unlikely."
4. Transmitting said limited-duration payment number from said device to a recipient of the transaction: Once generated, transmitting this payment number via the activated NFC unit (Reference C) is a straightforward application of existing wireless communication technology.

Motivation to Combine: The primary motivation, as stated in the patent, is to address "security concerns of a payment card owner" and prevent "fraudulent transactions." A POSA would combine the wireless capabilities of RFID/NFC cards (Reference C) and the processing/cryptographic capabilities of smart cards (Reference B) with established security practices (tokenization/OTPs) to create a more secure payment method. Explicit user activation of wireless communication and the generation of limited-duration payment numbers are obvious steps to mitigate known vulnerabilities.

Obviousness Analysis for Independent Claim 14

Independent Claim 14: An Apparatus for conducting credit transactions comprising, wherein the edge of said device contains a connector for connection to standard computing devices such as a USB interface.

Combination of Prior Art:

• Reference B (Smart IC chip card) + General knowledge of portable electronic device connectivity.

Rationale for Obviousness:

1. Apparatus for conducting credit transactions: This is covered by smart IC chip cards (Reference B).
2. Wherein the edge of said device contains a connector for connection to standard computing devices such as a USB interface: Many portable electronic devices, including various smart card readers or more advanced smart card-like tokens, commonly incorporate standard connectors like USB for power, data transfer, firmware updates, or configuration. Given that the multi-function electronic device is a "smart" device with a processor and memory, providing a means for it to interact with a computer system for tasks like "online purchases" or downloading "user data and other essential information" (as described in the patent) would be an obvious design choice for a POSA.

Motivation to Combine: The motivation would be to provide convenient and widely compatible means for charging, configuration, updates, and data exchange with a host computing device for a smart payment apparatus. USB is a ubiquitous standard for this purpose, making its inclusion an obvious engineering decision. The patent mentions the device "is equipped with a means 570 for communicating with the USB port on a computer or other device in order to make online purchases," directly illustrating this motivation.