Patent 10735320

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 (4)

Asserters network →

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

  1. 2006-11-16 · recorded 2019-08-22 · reel 050128/0691 · Assignment

    GITLIN, RICHARD D; PAN, PINGHAMMERHEAD SYSTEMS, INC.

    Correspondent: LINDEMAN, LAWRENCE W

    Transfer of inventors' rights to an operating company

  2. 2010-01-08 · recorded 2019-08-22 · reel 050128/0815 · Assignment

    HAMMERHEAD SYSTEMS, INC.BRIXHAM SOLUTIONS LTD.

    Correspondent: LINDEMAN, LAWRENCE W

    Transfer from an operating company to an unknown entity

  3. 2017-06-27 · recorded 2019-08-22 · reel 050128/0979 · Assignment

    BRIXHAM SOLUTIONS LTD.GLOBAL INNOVATION AGGREGATORS, LLC

    Correspondent: LINDEMAN, LAWRENCE W

    Transfer between entities, likely part of a patent monetization strategy

  4. 2019-12-24 · recorded 2020-01-13 · reel 051579/0773 · Assignment

    GLOBAL INNOVATION AGGREGATORS, LLCK.MIZRA LLC

    Correspondent: LINDEMAN, LAWRENCE, WENDY, W

    Transfer to the current asserting entity

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

  • Ping Pan: Employer at time of priority filing (2005-10-07) and first application filing (2006-10-05) not explicitly stated in the patent text or search results, but assigned interest to Hammerhead Systems, Inc. in November 2006.
  • Richard D. Gitlin: Employer at time of priority filing (2005-10-07) and first application filing (2006-10-05) not explicitly stated in the patent text or search results, but assigned interest to Hammerhead Systems, Inc. in November 2006.

Original assignee

The inventors, Ping Pan and Richard D. Gitlin, assigned their interest in the patent to Hammerhead Systems, Inc. on November 16, 2006 (Reel 050128/0691).

  • Product Embodiment: Hammerhead Systems, Inc. provided MPLS & Ethernet aggregation and switching solutions for business services, residential broadband, and wireless backhaul markets, and offered products like the HSX 6000 edge router, which embody the claims.
  • Primary Line of Business: Providing networking hardware and software solutions, specifically edge routers, for multiservice networks.
  • Current Status: Hammerhead Systems, Inc. is a "deadpooled" company, meaning it is dissolved or no longer operating.

Assignment timeline

  • 2006-11-16 (executed) / recorded 2019-08-22 — Reel 050128/0691
    • Conveyance: Assignment
    • Assignor: GITLIN, RICHARD D; PAN, PING
    • Assignee: HAMMERHEAD SYSTEMS, INC.
    • Correspondent: LINDEMAN, LAWRENCE W, 403 S. HIGHWAY 101, SUITE 240, SOLANA BEACH, CA 92075. This correspondent recurs throughout this chain.
    • Context: Transfer of inventors' rights to an operating company.
  • 2010-01-08 (executed) / recorded 2019-08-22 — Reel 050128/0815
    • Conveyance: Assignment
    • Assignor: HAMMERHEAD SYSTEMS, INC.
    • Assignee: BRIXHAM SOLUTIONS LTD.
    • Correspondent: LINDEMAN, LAWRENCE W, 403 S. HIGHWAY 101, SUITE 240, SOLANA BEACH, CA 92075. This correspondent recurs throughout this chain.
    • Context: Transfer from an operating company to an unknown entity.
  • 2017-06-27 (executed) / recorded 2019-08-22 — Reel 050128/0979
    • Conveyance: Assignment
    • Assignor: BRIXHAM SOLUTIONS LTD.
    • Assignee: GLOBAL INNOVATION AGGREGATORS LLC
    • Correspondent: LINDEMAN, LAWRENCE W, 403 S. HIGHWAY 101, SUITE 240, SOLANA BEACH, CA 92075. This correspondent recurs throughout this chain.
    • Context: Transfer between entities, likely part of a patent monetization strategy.
  • 2019-12-24 (executed) / recorded 2020-01-13 — Reel 051579/0773
    • Conveyance: Assignment
    • Assignor: GLOBAL INNOVATION AGGREGATORS, LLC
    • Assignee: K. MIZRA LLC
    • Correspondent: LINDEMAN, LAWRENCE, WENDY, W 403 S. HIGHWAY 101, SUITE 240, SOLANA BEACH, CA 92075. This correspondent recurs throughout this chain.
    • Context: Transfer to the current asserting entity.

Timeline diagram

timeline
    title Ownership of US 10735320
    2006 : Inventors to Hammerhead Systems Inc
    2010 : Hammerhead Systems to Brixham Solutions
    2017 : Brixham to Global Innovation Aggregators
    2019 : Global Innovation Aggregators to K Mizra LLC
         : Application filed by K Mizra LLC
    2020 : Patent issued
    2024 : First infringement suit filed
    2025 : PTAB case IPR2025-01364 filed

NPE / troll-pattern signals

  1. Shell-entity transfer: Present. The assignments from Hammerhead Systems, Inc. to BRIXHAM SOLUTIONS LTD. (Reel 050128/0815, executed 2010-01-08), then to GLOBAL INNOVATION AGGREGATORS LLC (Reel 050128/0979, executed 2017-06-27), and finally to K. MIZRA LLC (Reel 051579/0773, executed 2019-12-24) involve entities whose names suggest licensing or aggregation rather than product development. K. Mizra LLC has been explicitly identified as a "licensing firm (non-practicing entity, NPE)".
  2. Known asserter in the chain: Present. K. MIZRA LLC, the current assignee, is a known Non-Practicing Entity (NPE) that procures and monetizes patents through licensing and litigation. They have active litigation campaigns against major tech companies like Hewlett Packard Enterprise, Google, Silicon Motion, and Broadcom. Unified Patents also identifies K. Mizra as an "apparently funded entity that has brought suit on at least 35 patents worldwide".
  3. Repeat correspondent across the chain: Present. Lawrence W. Lindeman (or LINDEMAN, LAWRENCE W) is listed as the correspondent for all recorded assignments in this chain (Reel 050128/0691, Reel 050128/0815, Reel 050128/0979, Reel 051579/0773).
  4. Cascading transfers: Present. While the execution dates span several years (2006, 2010, 2017, 2019), three of the four assignments were recorded on the same day, 2019-08-22 (Reel 050128/0691, Reel 050128/0815, Reel 050128/0979), just prior to K. Mizra LLC filing the current patent application (2019-08-08) for this continuation patent. This rapid recording of multiple older assignments suggests a consolidation of ownership for assertion purposes. The final assignment to K. MIZRA LLC was recorded shortly after on 2020-01-13.
  5. Pre-litigation transfer: Unclear. The final assignment to K. MIZRA LLC was recorded on 2020-01-13 (executed 2019-12-24). The patent was granted on 2020-08-04. District court litigation (Texas Eastern District Court case 2:24-cv-00974 and Georgia Northern District Court case 1:24-cv-05442) began in 2024. While the transfers happened before the grant of this specific patent and well before the 2024 litigation, it doesn't fit the "within 6 months before first infringement suit naming this patent" perfectly. However, the transfers did consolidate ownership in an NPE (K. Mizra LLC) before active assertion of this specific patent family.
  6. Bankruptcy fire-sale: Not present. While Hammerhead Systems, Inc. is "deadpooled", there is no explicit mention or evidence of bankruptcy proceedings leading to the sale of this patent.
  7. Privateering: Unclear. There is no information in the provided snippets to suggest an operating company transferred the patent to an NPE to assert on its behalf against competitors.
  8. Defensive aggregator (anti-NPE): Not present. The patent chain does not terminate at a known defensive aggregator. Unified Patents is challenging the patent via IPR, indicating an anti-NPE stance against K. Mizra LLC.

Verdict

NPE — high confidence

This verdict is justified by several strong signals. K. Mizra LLC, the current assignee (Reel 051579/0773, recorded 2020-01-13), is a documented Non-Practicing Entity (NPE). The chain of ownership involves multiple transfers between entities with generic names (Brixham Solutions Ltd., Global Innovation Aggregators LLC) (Reel 050128/0815, Reel 050128/0979), and all assignments were processed by the same correspondent attorney, Lawrence W. Lindeman (Reel 050128/0691, Reel 050128/0815, Reel 050128/0979, Reel 051579/0773), indicating a centralized legal strategy for patent monetization. Furthermore, a series of older assignments were recorded rapidly (2019-08-22), just before this continuation application was filed by K Mizra LLC (2019-08-08), consolidating ownership in the NPE.

USPTO Assignment Center search page: https://assignmentcenter.uspto.gov/

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