Assignment history

Inventors

• Mosheh T. MOSKOWITZ (Employer not determinable from patent text; likely self-employed or associated with the Moskowitz Family LLC)
• Nathan C. Moskowitz (Employer not determinable from patent text; likely self-employed or associated with the Moskowitz Family LLC)

There are no unusual patterns indicating all inventors departing the original assignee within 12 months of filing. The assignments show the inventors assigning their rights to entities related to them (Nathan C. Moskowitz, then Moskowitz Family LLC) during the patent prosecution phase of the application that matured into this patent.

Original assignee

The entity named on the issued patent is Moskowitz Family LLC. It is unclear if Moskowitz Family LLC ships a product embodying the claims. The primary line of business appears to be intellectual property management related to medical devices, particularly spinal implants, as described in the patent. Its current status is operating, as it holds the patent.

Assignment timeline

• 2021-05-19 (executed) / recorded 2021-05-25 — Reel 003881/0879

  • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
  • Assignor: MOSKOWITZ, MOSHEH T.
  • Assignee: MOSKOWITZ, NATHAN C.
  • Correspondent: BROWDY AND NEIMARK, P.L.L.C., 1625 K STREET, NW, SUITE 1100, WASHINGTON, DC 20006. This correspondent recurs in this chain.
  • Context: Internal transfer of inventor's rights to another individual.

• 2021-05-19 (executed) / recorded 2021-05-25 — Reel 003881/0883

  • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
  • Assignor: MOSKOWITZ, NATHAN C.
  • Assignee: MOSKOWITZ FAMILY LLC
  • Correspondent: BROWDY AND NEIMARK, P.L.L.C., 1625 K STREET, NW, SUITE 1100, WASHINGTON, DC 20006. This correspondent recurs in this chain.
  • Context: Internal transfer of inventor's rights to a family-controlled LLC, establishing the original assignee for the issued patent.

No further post-issuance assignments are recorded for US11864755 on the USPTO Assignment Center as of 2026-05-26.

Timeline diagram

timeline
    title Ownership of US 11864755
    2005 : Priority date
    2021 : Application filed by Moskowitz Family LLC
         : Mosheh T Moskowitz assigns to Nathan C Moskowitz
         : Nathan C Moskowitz assigns to Moskowitz Family LLC
    2024 : Patent issued to Moskowitz Family LLC

NPE / troll-pattern signals

1. Shell-entity transfer — unclear. The transfers are from individual inventors to a "Family LLC." While "LLC" can suggest a shell, the "Family" aspect might indicate a closely-held operating business or an entity formed to manage family assets. Without product information or a registered-agent address being clearly distinct from a business operation, it's difficult to confirm definitively. The patent family has been involved in litigation, suggesting an assertive approach to patents.
2. Known asserter in the chain — not present. Moskowitz Family LLC is not identified as a known NPE on major public lists.
3. Repeat correspondent across the chain — present. BROWDY AND NEIMARK, P.L.L.C. (1625 K STREET, NW, SUITE 1100, WASHINGTON, DC 20006) appears as the correspondent on both recorded assignments (Reel 003881/0879 and 003881/0883). This indicates a consistent legal representative for the transfers within the family.
4. Cascading transfers — unclear. There are two transfers on the same day (executed 2021-05-19, recorded 2021-05-25) from individual inventors to a family-controlled LLC. While consecutive, they represent a direct chain from inventors to the ultimate applicant/assignee for this patent, rather than multiple transfers through unrelated or shell entities.
5. Pre-litigation transfer — unclear. The patent family (ID=40583835) has litigation filed (2025-08-23 anticipates expiration, PTAB case IPR2026-00121 filed). However, the assignments for this specific patent (US11864755) occurred in 2021, prior to its issuance in 2024 and well before any listed litigation dates in 2025-2026.
6. Bankruptcy fire-sale — not present. No indication of bankruptcy from the original assignors or assignee.
7. Privateering — not present. No evidence of an operating company transferring the patent to an NPE to assert on its behalf.
8. Defensive aggregator (anti-NPE) — not present. The patent is currently held by Moskowitz Family LLC, not a defensive aggregator.

Verdict

NPE — moderate confidence

The primary signal is the consistent use of a "Family LLC" as the assignee, combined with a repeat correspondent handling the transfers from individual inventors to this LLC (Browdy and Neimark, P.L.L.C. on Reel 003881/0879 and 003881/0883). While not a definitively "known asserter" or a typical "shell-entity" name, "Family LLC" often serves as a patent-holding vehicle for individual inventors, especially given the lack of evidence of product shipment by this entity. The Google Patents record also notes ongoing litigation for this patent family, which is consistent with an assertive (NPE) strategy.

USPTO Assignment Center search for US11864755: https://assignmentcenter.uspto.gov/