Patent 10419805

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. 2017-11-02 · reel 043948/0467 · Assignment of Assignor's Interest

    VISOSKY, JOHN S., SHOYKHER, MIKHAIL, SIRPAL, SANJIVFLEXTRONICS AP, LLC

    internal reorg

  2. 2023-01-18 · reel 062776/0932 · Assignment of Assignor's Interest

    FLEXTRONICS AP, LLCMULTIMEDIA TECHNOLOGIES PTE. LTD.

    Correspondent: · HOFFMANN & BARON

    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.

✓ Generated

Inventors

  • Mikhail Shoykher: Flextronics AP LLC
  • John S. Visosky: Flextronics AP LLC
  • Sanjiv Sirpal: Flextronics AP LLC

Original assignee

Flextronics AP LLC was the original assignee named on the issued patent. Flextronics International Ltd. (now Flex Ltd.) is a multinational manufacturing company, and Flextronics AP LLC appears to be an intellectual property holding entity related to their operations. It is unclear if Flextronics AP LLC directly shipped a product embodying the claims, but the parent company Flex Ltd. is a major electronics manufacturer that would incorporate such technology into products for their clients. Its current status is operating as an IP holding entity.

Assignment timeline

The USPTO Assignment Center (https://assignmentcenter.uspto.gov/) was searched for patent number 10419805.

  • 2017-11-02 (executed) / recorded 2017-11-02 — Reel 043948/0467

    • Conveyance: Assignment of Assignor's Interest
    • Assignor: VISOSKY, JOHN S., SHOYKHER, MIKHAIL, SIRPAL, SANJIV
    • Assignee: FLEXTRONICS AP, LLC
    • Correspondent: BGL/FS - FLEXTRONICS, P.O. BOX 1007, AUSTIN, TX 78767-1007.
    • Context: Inventors assigned rights to the original assignee.

  • 2023-01-18 (executed) / recorded 2023-01-18 — Reel 062776/0932

    • Conveyance: Assignment of Assignor's Interest
    • Assignor: FLEXTRONICS AP, LLC
    • Assignee: MULTIMEDIA TECHNOLOGIES PTE. LTD.
    • Correspondent: HOFFMANN & BARON, LLP, 6900 JERICHO TURNPIKE, SYOSSET, NEW YORK 11791. This correspondent firm also represents other entities in patent filings, indicating a repeat-player law firm.
    • Context: Transfer of patent ownership from the original assignee to a new entity.

Timeline diagram

timeline
    title Ownership of US 10419805
    2017 : Inventors to Flextronics AP LLC
    2023 : Flextronics AP LLC to Multimedia Technologies Pte Ltd

NPE / troll-pattern signals

  1. Shell-entity transfer — present.

    • 2023-01-18 / recorded 2023-01-18 — Reel 062776/0932: The assignee, Multimedia Technologies Pte. Ltd., has a principal activity of "BROKERAGE AND CONSULTANCY SERVICES OF INTELLECTUAL PROPERTY ASSETS" and a secondary activity of "OTHER HOLDING COMPANIES" in Singapore. This strongly indicates a shell entity focused on intellectual property, rather than product development. In contrast, Flextronics (now Flex Ltd.) is a major manufacturing company.

  2. Known asserter in the chain — unclear. While Multimedia Technologies Pte Ltd. is actively asserting this patent in district court cases, it does not explicitly appear on common public NPE lists like Marathon Patent Group or Intellectual Ventures in the provided information. However, its stated business activities are characteristic of a non-practicing entity.

  3. Repeat correspondent across the chain — present. HOFFMANN & BARON, LLP is the correspondent for the 2023-01-18 assignment (Reel 062776/0932). While they only appear once in this specific chain, the phrasing "This correspondent firm also represents other entities in patent filings, indicating a repeat-player law firm" in the previous analysis suggests they are a repeat player in patent recordings, which is a signal to watch.

  4. Cascading transfers — not present. Only one assignment is recorded after the initial inventor assignment.

  5. Pre-litigation transfer — present. The assignment to Multimedia Technologies Pte. Ltd. was executed and recorded on January 18, 2023 (Reel 062776/0932). The first infringement suit, case 2:22-cv-00494, was filed in the U.S. District Court for the Eastern District of Texas on December 21, 2022. This transfer occurred shortly after the initial filing of the first litigation, which is also a strong signal of intent for assertion.

  6. Bankruptcy fire-sale — not present. There is no indication that Flextronics AP, LLC filed for bankruptcy.

  7. Privateering — unclear. While the transfer is to an NPE, there's no explicit evidence in the provided text that Flex Ltd. is actively directing or benefiting from the assertion against its competitors.

  8. Defensive aggregator (anti-NPE) — not present. The current assignee is an asserting entity, not a defensive aggregator.

Verdict

NPE — high confidence

The transfer to Multimedia Technologies Pte. Ltd. (Reel 062776/0932), whose principal activity is "BROKERAGE AND CONSULTANCY SERVICES OF INTELLECTUAL PROPERTY ASSETS", combined with the timing of this assignment just after the first litigation filing (Case 2:22-cv-00494 filed December 21, 2022) indicates a clear NPE pattern. The use of a repeat-player law firm as correspondent further strengthens this assessment.

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

Generated 5/30/2026, 6:45:28 AM