Patent 11164456

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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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

Original assignee

Carma Technology Ltd. The patent describes "Systems and methods for matching pick-up requests with transport providers, tracking trip progress, and enabling provider ratings". Carma Technology Ltd appears to have developed and operated a ride-sharing service, Carma Carpooling, which aligns with the patent's claims. Carma Carpooling was later acquired by GoCar in Ireland in 2018. Carma Technology Ltd is currently listed as "Active" in the legal status on Google Patents.

Assignment timeline

No assignment records for US11164456 were found on the USPTO Patent Assignment Search database beyond the original assignment to Carma Technology Ltd.

Timeline diagram

timeline
    title Ownership of US 11164456
    2007 : Priority date
    2021 : Application filed by Carma Technology Ltd
    2021 : Patent granted to Carma Technology Ltd

NPE / troll-pattern signals

  1. Shell-entity transfer — not present. The patent remains with the original operating company, Carma Technology Ltd.
  2. Known asserter in the chain — not present. No known NPEs are identified in the ownership chain.
  3. Repeat correspondent across the chain — not present. There is only one recorded assignment in the chain (the original grant).
  4. Cascading transfers — not present. No multiple consecutive assignments have been recorded.
  5. Pre-litigation transfer — unclear. While there is litigation associated with this patent (IPR2026-00307 and a US case filed in Texas Eastern District Court), there are no assignment records to indicate a transfer within 6 months prior to these actions.
  6. Bankruptcy fire-sale — not present. No indication of Carma Technology Ltd filing for bankruptcy.
  7. Privateering — not present. No evidence of transfer to an NPE for assertion on behalf of an operating company.
  8. Defensive aggregator (anti-NPE) — not present. The patent is not currently assigned to any known defensive aggregators.

Verdict

Insufficient data. While the patent is currently involved in litigation, there are no recorded assignments on the USPTO Patent Assignment Search database beyond the original grant to Carma Technology Ltd. This lack of assignment records prevents a confident determination of NPE activity, as all signals rely on recorded transfers of ownership.
Verification link: https://assignmentcenter.uspto.gov/

Generated 5/29/2026, 5:44:53 PM