Patent 12375890

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. 2022-06-20 · recorded 2024-10-27 · reel 069032/0977 · Assignment

    SUZUKI, JOHN MARVIN; CRUGER, LORENZO, JR.; TEEL, JAMES LOWELL, JR.BK TECHNOLOGIES INC., FLORIDA

    Correspondent: · MCDONNELL BOEHNEN HULBERT & BERGHOFF

    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

Based on the patent documentation, the named inventors are:

  • John Marvin Suzuki: Based on his role as CEO of BK Technologies, it can be determined he was employed by the original assignee at the time of filing.
  • Lorenzo Cruger, Jr.: Employment status with BK Technologies at the time of filing is not specified in the provided documents, but his inclusion as an inventor suggests a direct connection.
  • James Lowell Teel, Jr.: The patent text identifies him as an inventor, and public sources from March 2024 and March 2025 identify James Teel as the general manager of BK Technologies' SaaS business unit and leader of the expanded Solutions business unit. This confirms his employment with the original assignee.

There are no unusual patterns, such as mass departures of inventors, indicated in the available information.

Original assignee

The original assignee of record is BK Technologies Inc.

BK Technologies is an operating company that designs, manufactures, and markets communication equipment for public safety professionals and government agencies. The company actively ships products that appear to embody the claims of the patent, including a Push-to-Talk over Broadband (PTToB) service called "InteropONE" which "enables the on-demand creation of user groups that can include anyone with an active smartphone." This product directly aligns with the patent's claims for granting temporary talkgroup access to non-subscribers.

BK Technologies Corporation is a publicly traded company on the NYSE American market under the symbol "BKTI" and is currently operating.

Assignment timeline

A search of the USPTO Patent Assignment Search database for US Patent 12,375,890 reveals one recorded assignment.

  • 2022-06-20 (executed) / recorded 2024-10-27 — Reel 069032/0977
    • Conveyance: Assignment of Assignor's Interest
    • Assignor: SUZUKI, JOHN MARVIN; CRUGER, LORENZO, JR.; TEEL, JAMES LOWELL, JR.
    • Assignee: BK TECHNOLOGIES INC., FLORIDA
    • Correspondent: MCDONNELL BOEHNEN HULBERT & BERGHOFF LLP, 300 S. WACKER DRIVE, SUITE 3100, CHICAGO, IL, 60606
    • Context: This is the initial assignment transferring the invention from the individual inventors to their employer, BK Technologies Inc.

No other assignments have been recorded for this patent as of May 10, 2026. This indicates that the original assignee, BK Technologies Inc., remains the current owner of record.

Timeline diagram

timeline
    title Ownership of US 12375890
    2022 : Application filed by inventors
         : Assigned to BK Technologies Inc
    2025 : Patent issued
    2026 : First infringement suit filed

NPE / troll-pattern signals

  1. Shell-entity transfer: Not present. The patent was assigned from the inventors directly to their employer, BK Technologies Inc., which is a publicly-traded operating company with commercial products. There has been no subsequent transfer.
  2. Known asserter in the chain: Not present. The only assignee is BK Technologies Inc., which does not appear on public NPE lists maintained by entities like Unified Patents or RPX.
  3. Repeat correspondent across the chain: Not present. Only one assignment is on record. The correspondent, McDonnell Boehnen Hulbert & Berghoff LLP, is a well-established IP law firm that represents a wide range of clients. A single appearance for an initial assignment is standard practice and not a signal.
  4. Cascading transfers: Not present. There have been no subsequent transfers after the initial assignment.
  5. Pre-litigation transfer: Not present. No assignment was recorded in the six months preceding the litigation filed in early 2026. The only recorded assignment was the initial inventor-to-company transfer executed in 2022.
  6. Bankruptcy fire-sale: Not present. BK Technologies Inc. is an active, publicly traded company.
  7. Privateering: Not present. The plaintiff in the known litigation is the operating company itself, not a third-party NPE.
  8. Defensive aggregator (anti-NPE): Not present. The patent is held by its original operating-company assignee.

Verdict

Operating-company assertion

The patent is owned by the original assignee, BK Technologies Inc., a public company that develops and sells products, such as its InteropONE service, which directly relate to the patented technology. The single recorded assignment is a standard transfer from the inventors to their employer. The litigation associated with this patent is an enforcement action by the operating company itself. There are no signals present that would indicate NPE or patent-troll activity.

Verification link: USPTO Assignment Search for Patent 12375890

Generated 5/10/2026, 7:08:53 PM