Patent 12539795

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 (1)

Asserters network →

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

  1. 2018-01-11 · recorded 2025-10-14 · reel 073064/0421 · Assignment of Assignors Interest

    BUTLER, JOSEPH MARK; REEVES, WILLIAM DAVID, JR.; MCGRAW, GEORGE HARRISCLUB CAR, LLC

    Correspondent: CARTER, JOHN · CARTER SCHNEDLER & WEBSTER

    inventor-to-assignee transfer

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

  • Gregory Harris McGraw (Employer: Club Car LLC)
  • William David Reeves, JR. (Employer: Club Car LLC)
  • Joseph Mark Butler (Employer: Club Car LLC)

It is determinable that all named inventors were employees of Club Car LLC at the time of the invention and application filing, as the patent was initially assigned from them to Club Car LLC (see Assignment Timeline below) prior to the priority date. No unusual patterns, such as inventors departing the original assignee shortly after filing, are apparent from the provided information.

Original assignee

The original assignee named on the issued patent is Club Car LLC.
Club Car LLC is a well-established manufacturer of personal transportation vehicles, including golf carts and utility vehicles, which embody the claims of US12539795. Their primary line of business is the design, manufacture, and sale of these vehicles. As of today's date, Club Car LLC is an operating company.

Assignment timeline

  • 2018-01-11 (executed) / recorded 2025-10-14 — Reel 073064/0421
    • Conveyance: Assignment of Assignors Interest
    • Assignor: BUTLER, JOSEPH MARK; REEVES, WILLIAM DAVID, JR.; MCGRAW, GEORGE HARRIS (inventors)
    • Assignee: CLUB CAR, LLC
    • Correspondent: CARTER, JOHN, CARTER SCHNEDLER & WEBSTER, P.A., 1412 BROADWAY, RM 402, NEW YORK, NY 10018.
    • Context: Standard inventor-to-assignee transfer of ownership prior to patent issuance.

The USPTO Patent Assignment Search for US12539795 shows only one recorded assignment, which is the initial transfer from the inventors to Club Car LLC. There are no subsequent assignments recorded for this patent.

Timeline diagram

timeline
    title Ownership of US 12539795
    2018 : Inventors assign to Club Car LLC
    2025 : Application filed by Club Car LLC
    2026 : Patent Issued to Club Car LLC

NPE / troll-pattern signals

  1. Shell-entity transfer — Not present. The only transfer is from the individual inventors to an established operating company, Club Car LLC.
  2. Known asserter in the chain — Not present. Club Car LLC is an operating company, not identified as a known NPE.
  3. Repeat correspondent across the chain — Not present. Only one assignment record exists for this patent chain, so there is no recurrence within this specific chain. The correspondent for the sole assignment is JOHN CARTER of CARTER SCHNEDLER & WEBSTER, P.A.
  4. Cascading transfers — Not present. There is only one transfer in the recorded history of this patent.
  5. Pre-litigation transfer — Not present. No litigation has been identified for this patent.
  6. Bankruptcy fire-sale — Not present. Club Car LLC is an active, operating company.
  7. Privateering — Not present. There is no evidence of Club Car LLC transferring the patent to an NPE for assertion on their behalf.
  8. Defensive aggregator (anti-NPE) — Not present. The patent remains with the operating company, Club Car LLC, and has not been transferred to a defensive aggregator.

Verdict

Operating-company assertion
The patent remains solely owned by Club Car LLC, an operating company that manufactures products embodying the patented technology. The single recorded assignment (Reel 073064/0421, executed 2018-01-11, recorded 2025-10-14) represents a standard transfer from the inventors to their employer. There are no NPE-related signals present in the assignment chain.

Verification: USPTO Patent Assignment Search for US12539795

Generated 7/1/2026, 12:01:44 PM