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.

Assignment history

Inventors

John Reger (Notrox LLC)

Original assignee

Notrox LLC is the original assignee named on the issued patent. Information regarding whether Notrox LLC ships a product embodying the claims, its primary line of business, or its current operating status (operating, acquired, dissolved, in bankruptcy) is not readily determinable from the patent document itself or publicly available information at this time.

Assignment timeline

As of 2026-06-15, a search of the USPTO Patent Assignment Center for US Patent 11447993B1 returned no recorded assignments. This indicates that the original assignee, Notrox LLC, likely still owns the patent.

Timeline diagram

timeline
    title Ownership of US 11447993B1
    2021 : Filed by Notrox LLC
    2022 : Issued to Notrox LLC

NPE / troll-pattern signals

Shell-entity transfer — not present
Known asserter in the chain — not present
Repeat correspondent across the chain — not present
Cascading transfers — not present
Pre-litigation transfer — not present
Bankruptcy fire-sale — not present
Privateering — not present
Defensive aggregator (anti-NPE) — not present

Verdict

Insufficient data. There are no recorded assignments for US Patent 11447993B1 in the USPTO Assignment Center. Therefore, there is no information to assess any NPE or troll-pattern signals.

https://assignmentcenter.uspto.gov/