Patent 11905896

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.

Active provider: Google · gemini-2.5-flash

Ownership chain (2)

Asserters network →

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

  1. 2013-10-31 · recorded 2023-06-07 · reel 063884/0575 · Assignment

    JENISON, LEIGH; SARDER, MARK J.; SCHMIT, IANCHAMPION ENGINE TECHNOLOGY, LLC

    Correspondent: R. MICHAEL HURST

    internal reorg

  2. 2018-11-27 · recorded 2023-06-07 · reel 063884/0690 · Assignment

    CHAMPION ENGINE TECHNOLOGY, LLCCHAMPION POWER EQUIPMENT, INC.

    Correspondent: R. MICHAEL HURST

    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

  • Mark J. Sarder (Champion Power Equipment Inc)
  • Leigh Jenison (Champion Power Equipment Inc)
  • Ian Schmit (Champion Power Equipment Inc)

Original assignee

Champion Power Equipment Inc is the original assignee. Champion Power Equipment Inc manufactures and sells power equipment, including dual fuel generators, which embody the claims of the patent. Champion Power Equipment Inc is an operating company.

Assignment timeline

  • 2013-10-31 (executed) / recorded 2023-06-07 — Reel 063884/0575
    • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
    • Assignor: JENISON, LEIGH; SARDER, MARK J.; SCHMIT, IAN
    • Assignee: CHAMPION ENGINE TECHNOLOGY, LLC
    • Correspondent: R. MICHAEL HURST, ESQ., 1410 BROADWAY, 30TH FLOOR, NEW YORK, NEW YORK UNITED STATES 10018
    • Context: Internal transfer from inventors to a related LLC.
  • 2018-11-27 (executed) / recorded 2023-06-07 — Reel 063884/0690
    • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
    • Assignor: CHAMPION ENGINE TECHNOLOGY, LLC
    • Assignee: CHAMPION POWER EQUIPMENT, INC.
    • Correspondent: R. MICHAEL HURST, ESQ., 1410 BROADWAY, 30TH FLOOR, NEW YORK, NEW YORK UNITED STATES 10018. This correspondent recurs in this chain.
    • Context: Internal transfer within the Champion family of entities.

Timeline diagram

timeline
    title Ownership of US 11905896
    2013 : Inventors assigned to Champion Engine Technology LLC
    2018 : Champion Engine Technology assigned to Champion Power Equipment Inc
    2024 : Patent issued

NPE / troll-pattern signals

  1. Shell-entity transfer — not present. The transfers are between related entities of Champion Power Equipment, an operating company.
  2. Known asserter in the chain — not present. None of the named assignees appear on public NPE lists.
  3. Repeat correspondent across the chain — present. R. Michael Hurst, Esq. is listed as the correspondent for both recorded assignments (Reel 063884/0575 and 063884/0690).
  4. Cascading transfers — not present. There are only two transfers recorded in this chain, executed several years apart. Both were recorded on the same day in 2023, but this represents a delayed recording of past events, not rapid, consecutive transfers.
  5. Pre-litigation transfer — unclear. There are multiple litigation cases associated with this patent family, with the earliest listed as 2:23-cv-02371 filed in Arizona District Court, and IPR2025-01228 filed with the PTAB. However, the exact dates of the complaints are not precisely aligned with the assignment dates to make a definitive call on a "pre-litigation transfer" within 6 months.
  6. Bankruptcy fire-sale — not present. There is no indication of bankruptcy filings by Champion Power Equipment Inc or its related entities.
  7. Privateering — not present. No evidence suggests that Champion Power Equipment Inc transferred the patent to an NPE to assert on its behalf.
  8. Defensive aggregator (anti-NPE) — not present. The chain ends with Champion Power Equipment Inc, an operating company, not a defensive aggregator.

Verdict

Operating-company assertion The patent has been assigned between related entities of Champion Power Equipment Inc (Reel 063884/0575, Reel 063884/0690), an operating company that manufactures and sells products embodying the claims. The presence of litigation (e.g., 2:23-cv-02371, 2:24-cv-01281) suggests that Champion Power Equipment Inc is asserting the patent, likely against competitors.

Verification: https://assignmentcenter.uspto.gov/

Generated 5/20/2026, 12:45:56 AM