Patent 8370543

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 (7)

Asserters network →

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

  1. 2008-05-28 · recorded 2012-02-13 · reel 027696/0109 · Assignment

    BAJPAI, PRADEEP, RAZA, SYED BABARCypress Semiconductor Corporation

    Correspondent: · BLAKELY SOKOLOFF TAYLOR & ZAFMAN

    Original assignment from inventors to employer

  2. 2015-03-12 · recorded 2015-03-21 · reel 035240/0429 · Security Interest

    Cypress Semiconductor Corporation; Spansion LLCMORGAN STANLEY SENIOR FUNDING, INC.

    Correspondent: RICHARD S. PARNAS

    Securitization of assets

  3. 2015-03-12 · recorded 2020-11-03 · reel 058002/0470 · Corrective Assignment

    Cypress Semiconductor Corporation; Spansion LLCMORGAN STANLEY SENIOR FUNDING, INC.

    Correspondent: RICHARD S. PARNAS

    Corrective assignment to confirm security interest

  4. 2019-06-28 · recorded 2019-07-10 · reel 049717/0618 · Assignment

    Cypress Semiconductor CorporationMONTEREY RESEARCH, LLC

    Correspondent: RICHARD S. PARNAS

    Transfer of patent assets

  5. 2019-06-28 · recorded 2019-08-07 · reel 049989/0248 · Release By Secured Party

    MORGAN STANLEY SENIOR FUNDING, INC.Cypress Semiconductor Corporation

    Release of security interest

  6. 2025-01-31 · recorded 2025-05-16 · reel 071299/0161 · Assignment

    MONTEREY RESEARCH, LLCSOUTHFORK IP HOLDINGS LLC

    Correspondent: MEHRAN FAHIMI

    Transfer of patent assets

  7. 2025-07-24 · recorded 2025-07-28 · reel 071853/0831 · Assignment

    SOUTHFORK IP HOLDINGS LLCINDUCTION DEVICES LLC

    Correspondent: MEHRAN FAHIMI

    Transfer to asserter

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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Inventors

  • Syed Babar Raza (Cypress Semiconductor Corp.)
  • Pradeep Bajpai (Cypress Semiconductor Corp.)

Original assignee

The original assignee, Cypress Semiconductor Corp., was an American semiconductor design and manufacturing company. They offered various products including NOR flash memories, microcontrollers, PSoC solutions, capacitive touch-sensing controllers, and USB connectivity solutions. The company shipped products embodying the claims, specifically mentioning USB controllers and asynchronous SRAMs. Cypress Semiconductor Corp. was acquired by Infineon Technologies in April 2020 and is no longer an independent operating entity.

Assignment timeline

  • 2012-02-13 (executed 2008-05-28) / recorded 2012-02-13 — Reel 027696/0109
    • Conveyance: Assignment
    • Assignor: BAJPAI, PRADEEP, RAZA, SYED BABAR
    • Assignee: CYPRESS SEMICONDUCTOR CORPORATION
    • Correspondent: BLAKELY SOKOLOFF TAYLOR & ZAFMAN LLP, 1279 OAKMEAD PARKWAY, SUNNYVALE, CALIFORNIA UNITED STATES 94085
    • Context: Original assignment from inventors to employer
  • 2015-03-12 (executed 2015-03-12) / recorded 2015-03-21 — Reel 035240/0429
    • Conveyance: Security Interest
    • Assignor: CYPRESS SEMICONDUCTOR CORPORATION, SPANSION LLC
    • Assignee: MORGAN STANLEY SENIOR FUNDING, INC.
    • Correspondent: RICHARD S. PARNAS, 1585 BROADWAY, NEW YORK, NEW YORK UNITED STATES 10036
    • Context: Securitization of assets
  • 2019-06-28 (executed 2019-06-28) / recorded 2019-07-10 — Reel 049717/0618
    • Conveyance: Assignment
    • Assignor: CYPRESS SEMICONDUCTOR CORPORATION
    • Assignee: MONTEREY RESEARCH, LLC
    • Correspondent: RICHARD S. PARNAS, 1585 BROADWAY, NEW YORK, NEW YORK UNITED STATES 10036. This correspondent recurs in this chain.
    • Context: Transfer of patent assets
  • 2019-06-28 (executed 2019-06-28) / recorded 2019-08-07 — Reel 049989/0248
    • Conveyance: Release By Secured Party
    • Assignor: MORGAN STANLEY SENIOR FUNDING INC.,
    • Assignee: CYPRESS SEMICONDUCTOR CORPORATION
    • Correspondent: MORGAN STANLEY LEGAL DEPT., 1585 BROADWAY, NEW YORK, NEW YORK UNITED STATES 10036
    • Context: Release of security interest
  • 2015-03-12 (executed 2015-03-12) / recorded 2020-11-03 — Reel 058002/0470
    • Conveyance: Corrective Assignment
    • Assignor: CYPRESS SEMICONDUCTOR CORPORATION, SPANSION LLC
    • Assignee: MORGAN STANLEY SENIOR FUNDING, INC.
    • Correspondent: RICHARD S. PARNAS, 1585 BROADWAY, NEW YORK, NEW YORK UNITED STATES 10036. This correspondent recurs in this chain.
    • Context: Corrective assignment to confirm security interest
  • 2025-01-31 (executed 2025-01-31) / recorded 2025-05-16 — Reel 071299/0161
    • Conveyance: Assignment
    • Assignor: MONTEREY RESEARCH LLC
    • Assignee: SOUTHFORK IP HOLDINGS LLC
    • Correspondent: MEHRAN FAHIMI, 1800 DIABLO AVE, PETALUMA, CALIFORNIA UNITED STATES 94952
    • Context: Transfer of patent assets
  • 2025-07-24 (executed 2025-07-24) / recorded 2025-07-28 — Reel 071853/0831
    • Conveyance: Assignment
    • Assignor: SOUTHFORK IP HOLDINGS LLC
    • Assignee: INDUCTION DEVICES LLC
    • Correspondent: MEHRAN FAHIMI, 1100 LARKSPUR LANDING CIRCLE, SUITE 245, LARKSPUR, CALIFORNIA UNITED STATES 94939. This correspondent recurs in this chain.
    • Context: Transfer to asserter

Timeline diagram

timeline
    title Ownership of US 8370543
    2012 : Assigned to Cypress Semiconductor
    2015 : Securitized to Morgan Stanley
    2019 : Assigned to Monterey Research LLC
         : Morgan Stanley released interest
    2020 : Corrective assignment to Morgan Stanley
    2025 : Assigned to Southfork IP Holdings LLC
         : Assigned to Induction Devices LLC

NPE / troll-pattern signals

  1. Shell-entity transfer — present

    • 2019-07-10 (Reel 049717/0618): Cypress Semiconductor Corporation to MONTEREY RESEARCH, LLC. Monterey Research, LLC is a known patent monetizing entity.
    • 2025-05-16 (Reel 071299/0161): MONTEREY RESEARCH LLC to SOUTHFORK IP HOLDINGS LLC. The name "IP Holdings" suggests a licensing-only entity.
    • 2025-07-28 (Reel 071853/0831): SOUTHFORK IP HOLDINGS LLC to INDUCTION DEVICES LLC. Induction Devices LLC is the current assignee and identified as the plaintiff in multiple infringement suits. Their primary business appears to be induction heating tools, which seems unrelated to asynchronous communication ports described in the patent.

  2. Known asserter in the chain — present

    • 2019-07-10 (Reel 049717/0618): MONTEREY RESEARCH, LLC is a known NPE.
    • 2025-07-28 (Reel 071853/0831): INDUCTION DEVICES LLC is the current plaintiff in numerous infringement suits related to this patent.

  3. Repeat correspondent across the chain — present

    • Richard S. Parnas (1585 Broadway, New York, New York United States 10036) appears as the correspondent for both the 2015-03-21 security interest filing (Reel 035240/0429) and the 2019-07-10 assignment (Reel 049717/0618), and the 2020-11-03 corrective assignment (Reel 058002/0470).
    • Mehran Fahimi (1800 DIABLO AVE, PETALUMA, CALIFORNIA UNITED STATES 94952 and 1100 LARKSPUR LANDING CIRCLE, SUITE 245, LARKSPUR, CALIFORNIA UNITED STATES 94939) appears as the correspondent for the 2025-05-16 assignment (Reel 071299/0161) and the 2025-07-28 assignment (Reel 071853/0831).

  4. Cascading transfers — present

    • 2025-05-16 (Reel 071299/0161) and 2025-07-28 (Reel 071853/0831): Two assignments within approximately two months, transferring from Monterey Research LLC to Southfork IP Holdings LLC and then to Induction Devices LLC, with the same correspondent, Mehran Fahimi, involved.

  5. Pre-litigation transfer — present

    • The assignment to Induction Devices LLC (Reel 071853/0831) was recorded on 2025-07-28. The earliest reported litigation filings are in 2025 (e.g., 2:25-cv-00787), indicating that this transfer occurred shortly before or concurrently with the initiation of legal actions.

  6. Bankruptcy fire-sale — not present

  7. Privateering — unclear

    • While the original assignee, Cypress Semiconductor, was acquired by Infineon, there is no direct evidence from the assignments or public records that Infineon transferred the patent to an NPE for assertion on its behalf.

  8. Defensive aggregator (anti-NPE) — not present

Verdict

NPE — high confidence
The presence of multiple strong NPE signals, including transfers to known shell entities (Monterey Research LLC, Southfork IP Holdings LLC, Induction Devices LLC), a repeat correspondent attorney across several transfers, cascading transfers in a short timeframe, and pre-litigation transfers, strongly indicates NPE assertion. The current assignee, Induction Devices LLC, does not appear to manufacture products related to the patent's claims, further supporting this verdict. (See USPTO Assignment Center search for US8370543)

Generated 6/5/2026, 6:01:25 PM