Patent 10593330

Assignment history

Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.

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Ownership chain (2)

Asserters network →

Structured records extracted from the assignment-history narrative below. Each entity links to its full ownership-network profile.

  1. 2018-10-26 · reel 048866/0339 · ASSIGNMENT OF ASSIGNORS INTEREST

    SHARIFI, MATTHEWGOOGLE INC.

    Correspondent: · GOOGLE LLC

  2. 2018-10-26 · reel 048866/0343 · ENTITY CONVERSION

    GOOGLE INC.GOOGLE INC.

    Correspondent: · GOOGLE LLC

    internal reorg

Assignment history

Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.

✓ Generated

Inventors

The named inventor for US patent 10593330 is Matthew Sharifi. At the time of filing (October 26, 2018), Matthew Sharifi assigned his interest to Google Inc., indicating Google Inc. (and subsequently Google LLC) as his employer.

Original assignee

The original assignee on the issued patent is Google LLC. Google LLC is a large operating company known for a vast array of internet-related services and products, many of which embody claims related to hotword detection, such as Google Assistant devices (e.g., Google Home, Nest Hub) and Pixel phones. Google LLC is currently an active, operating company.

Assignment timeline

The USPTO Patent Assignment Search for US10593330 reveals the following assignment records:

  • 2018-10-26 (executed) / recorded 2018-10-26 — Reel 048866/0339

    • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
    • Assignor: SHARIFI, MATTHEW
    • Assignee: GOOGLE INC.
    • Correspondent: GOOGLE INC., C/O GOOGLE LLC, 1600 AMPHITHEATRE PKWY, MOUNTAIN VIEW, CA 94043.
    • Context: Inventor assigned their interest in the patent application to Google Inc., the original operating company.

  • 2018-10-26 (executed) / recorded 2018-10-26 — Reel 048866/0343

    • Conveyance: ENTITY CONVERSION
    • Assignor: GOOGLE INC.
    • Assignee: GOOGLE LLC
    • Correspondent: GOOGLE INC., C/O GOOGLE LLC, 1600 AMPHITHEATRE PKWY, MOUNTAIN VIEW, CA 94043. This same correspondent appears on the prior assignment for this patent.
    • Context: Internal corporate restructuring where Google Inc. converted to Google LLC.

Timeline diagram

timeline
    title Ownership of US 10593330
    2018-10-26 : Inventor assigned to Google Inc
               : Google Inc converts to Google LLC
    2020-03-17 : Patent Issued to Google LLC
    2023-06-15 : IPR2023-00119 instituted
    2024-06-14 : IPR FWD: Claims unpatentable
    2024-08-13 : Google appeals to CAFC

NPE / troll-pattern signals

  1. Shell-entity transfer — not present. The transfers are from the inventor to Google Inc. and then to Google LLC, both recognized operating companies.
  2. Known asserter in the chain — not present. Google LLC is an operating company and not listed as a known NPE. Unified Patents, which challenged the patent, is an anti-NPE defensive aggregator, not an asserter of the patent.
  3. Repeat correspondent across the chain — present. The correspondent "GOOGLE INC., C/O GOOGLE LLC, 1600 AMPHITHEATRE PKWY, MOUNTAIN VIEW, CA 94043" is listed on both recorded assignments (Reel 048866/0339 and Reel 048866/0343).
  4. Cascading transfers — not present. The two recorded assignments occurred on the same day and reflect an initial inventor assignment and a corporate name change, not a series of rapid transfers to different entities.
  5. Pre-litigation transfer — not present. The assignments were executed and recorded on October 26, 2018, while the earliest identified litigation filings (USITC 337-TA-1329 and NDCA 3:22-cv-04552) are from August 2022, well over six months later.
  6. Bankruptcy fire-sale — not present. The assignor, Google Inc., underwent an entity conversion to Google LLC, not a bankruptcy sale.
  7. Privateering — not present. Google LLC is directly asserting the patent in the identified litigation (e.g., against Sonos), indicating direct operating-company assertion, not privateering through an NPE.
  8. Defensive aggregator (anti-NPE) — not present as an assignee. While Unified Patents, a defensive aggregator, successfully challenged the patent in IPR2023-00119, they did not acquire the patent.

Verdict

Operating-company assertion

The patent originated with Matthew Sharifi, an inventor who assigned his rights to Google Inc., which then underwent an entity conversion to Google LLC on the same day, October 26, 2018 (Reel 048866/0339, 048866/0343). Google LLC is a major operating company that develops and sells products directly embodying the claims, and the known litigation instances indicate Google LLC is asserting the patent against competitors. The USPTO Assignment Center confirms this chain of ownership. cite: https://assignmentcenter.uspto.gov/

Generated 6/10/2026, 12:04:12 AM