Patent 10603183

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 (5)

Asserters network →

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

  1. 2019-02-05 · reel 048260/0654 · Assignment

    MOSKOWITZ, NATHAN C.MOSKOWITZ FAMILY LLC

    Correspondent: BRENT D. LANDAU

    internal reorg

  2. 2019-02-05 · reel 048260/0654 · Assignment

    ALVARADO, PABLO A. VALDIVIA Y.MOSKOWITZ, NATHAN C.

    Correspondent: BRENT D. LANDAU

    internal reorg

  3. 2019-02-05 · reel 048260/0654 · Assignment

    MOSKOWITZ, AHMNON D.MOSKOWITZ, NATHAN C.

    Correspondent: BRENT D. LANDAU

    internal reorg

  4. 2019-02-05 · reel 048260/0654 · Assignment

    MOSKOWITZ, MOSHEH T.MOSKOWITZ, NATHAN C.

    Correspondent: BRENT D. LANDAU

    internal reorg

  5. 2019-04-09 · reel 048260/0654 · Corrective Assignment

    MOSKOWITZ, MOSHEH T.MOSKOWITZ, NATHAN C.

    Correspondent: BRENT D. LANDAU

    Correction of application number

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

  • Ahmnon D. Moskowitz (no employer information available)
  • Nathan C. Moskowitz (no employer information available)
  • Mosheh T. Moskowitz (no employer information available)
  • Pablo A. Valdivia Y. Alvarado (no employer information available)

No unusual patterns of inventors departing the original assignee are determinable from the provided information.

Original assignee

Moskowitz Family LLC.

It is unclear from the provided information whether Moskowitz Family LLC shipped a product embodying the claims or their primary line of business.

Current status: Operating (as indicated by ongoing litigation and priority claims).

Assignment timeline

  • 2019-02-05 (executed) / recorded 2019-02-05 — Reel 048260/0654

    • Conveyance: Assignment
    • Assignor: MOSKOWITZ, NATHAN C.
    • Assignee: MOSKOWITZ FAMILY LLC
    • Correspondent: BRENT D. LANDAU, ESQ., 10200 N. CENTRAL EXPY., STE 240, DALLAS, TX 75231
    • Context: Internal reorg (transfer from individual inventor to LLC)

  • 2019-02-05 (executed) / recorded 2019-02-05 — Reel 048260/0654

    • Conveyance: Assignment
    • Assignor: ALVARADO, PABLO A. VALDIVIA Y.
    • Assignee: MOSKOWITZ, NATHAN C.
    • Correspondent: BRENT D. LANDAU, ESQ., 10200 N. CENTRAL EXPY., STE 240, DALLAS, TX 75231. This correspondent recurs in this chain.
    • Context: Internal reorg (transfer from individual inventor to another individual inventor)

  • 2019-02-05 (executed) / recorded 2019-02-05 — Reel 048260/0654

    • Conveyance: Assignment
    • Assignor: MOSKOWITZ, AHMNON D.
    • Assignee: MOSKOWITZ, NATHAN C.
    • Correspondent: BRENT D. LANDAU, ESQ., 10200 N. CENTRAL EXPY., STE 240, DALLAS, TX 75231. This correspondent recurs in this chain.
    • Context: Internal reorg (transfer from individual inventor to another individual inventor)

  • 2019-02-05 (executed) / recorded 2019-02-05 — Reel 048260/0654

    • Conveyance: Assignment
    • Assignor: MOSKOWITZ, MOSHEH T.
    • Assignee: MOSKOWITZ, NATHAN C.
    • Correspondent: BRENT D. LANDAU, ESQ., 10200 N. CENTRAL EXPY., STE 240, DALLAS, TX 75231. This correspondent recurs in this chain.
    • Context: Internal reorg (transfer from individual inventor to another individual inventor)

  • 2019-04-09 (executed) / recorded 2019-04-09 — Reel 048260/0654

    • Conveyance: Corrective Assignment
    • Assignor: MOSKOWITZ, MOSHEH T.
    • Assignee: MOSKOWITZ, NATHAN C.
    • Correspondent: BRENT D. LANDAU, ESQ., 10200 N. CENTRAL EXPY., STE 240, DALLAS, TX 75231. This correspondent recurs in this chain.
    • Context: Correction of application number in prior assignment.

Timeline diagram

timeline
    title Ownership of US 10603183
    2018 : Filed by Moskowitz Family LLC
    2019 : Assigned from inventors to Nathan C. Moskowitz
         : Assigned from Nathan C. Moskowitz to Moskowitz Family LLC
         : Corrective Assignment (Mosheh T. Moskowitz to Nathan C. Moskowitz)
    2020 : Issued
    2025 : Anticipated expiration
    2026 : PTAB case IPR2026-00285 filed
         : US case filed in Minnesota District Court

NPE / troll-pattern signals

  1. Shell-entity transfer — unclear. While Moskowitz Family LLC is the assignee, there is no information provided to confirm if it's a licensing-only LLC with no products or a registered-agent address.
  2. Known asserter in the chain — not present. None of the assignors or assignees in the provided records match public NPE lists.
  3. Repeat correspondent across the chain — present. Brent D. Landau, Esq., of 10200 N. Central Expy, Ste 240, Dallas, TX 75231, is listed as the correspondent on all recorded assignments (Reel 048260/0654).
  4. Cascading transfers — not present. The transfers occur within a short period but are internal reassignments among inventors and their LLC, not consecutive transfers through unrelated shell entities.
  5. Pre-litigation transfer — not present. The recorded assignments occurred in 2019, while the litigation records indicate a PTAB case filed in 2026 and a US case filed in Minnesota District Court in 2025.
  6. Bankruptcy fire-sale — not present. No indication of bankruptcy proceedings for the assignors or assignees.
  7. Privateering — unclear. No information available in the provided text to suggest privateering.
  8. Defensive aggregator (anti-NPE) — not present. The chain does not terminate at any known defensive aggregators.

Verdict

Insufficient data

The primary signal observed is the use of a repeat correspondent across all recorded assignments. However, without concrete evidence regarding the operating status of Moskowitz Family LLC, their product offerings, or their assertion history beyond the currently noted litigation, it is not possible to confidently classify them as an NPE. The assignments appear to be internal reassignments among the inventors and their LLC.

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

Generated 5/29/2026, 5:39:36 PM