Patent 11693450

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.

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Inventors

  • Stephen E. Delaporte: Employer at the time of filing not explicitly stated in the patent document.

Original assignee

The original assignee is Lepton Computing LLC. The patent document does not provide information about whether Lepton Computing LLC shipped a product embodying the claims or their primary line of business. Their current status is "Active" as per the Google Patents legal status, and they are actively asserting this patent in litigation against Samsung Electronics.

Assignment timeline

The USPTO Patent Assignment Search database (https://assignmentcenter.uspto.gov/) was checked for US Patent 11693450. As of June 1, 2026, there are no recorded assignments for US Patent 11693450 after its issuance. This indicates that Lepton Computing LLC, the original assignee, remains the current owner of the patent.

Timeline diagram

timeline
    title Ownership of US 11693450
    2010 : Priority date
    2022 : Filed by Lepton Computing LLC
    2023 : Issued to Lepton Computing LLC
    2026 : Litigation filed by Lepton Computing LLC

NPE / troll-pattern signals

  1. Shell-entity transfer — Not present. The patent has not been transferred from Lepton Computing LLC. While Lepton Computing LLC is described as having no public contact details and only two employees, and not having commercially produced a device, which could suggest a shell entity, there is no evidence of a transfer to another shell entity in the assignment record.
  2. Known asserter in the chain — Not present. Lepton Computing LLC is the only entity in the ownership chain and is not identified as a commonly known NPE from the provided lists. However, some sources describe Lepton Computing LLC as likely a "patent troll" or "Non-Practicing Entity" (NPE) in the context of their lawsuit against Samsung.
  3. Repeat correspondent across the chain — Not present. There is only one entry in the assignment record (the initial assignment to Lepton Computing LLC upon filing), so no recurrence can be observed.
  4. Cascading transfers — Not present. There are no recorded assignments of the patent.
  5. Pre-litigation transfer — Not present. The patent was issued to Lepton Computing LLC on July 4, 2023, and the litigation against Samsung was filed around April 26, 2026. There have been no recorded transfers of the patent since its issuance.
  6. Bankruptcy fire-sale — Not present. There is no information to suggest that Lepton Computing LLC has filed for bankruptcy or that the patent was sold in such proceedings.
  7. Privateering — Unclear. While Lepton Computing LLC is identified as an NPE, there is no explicit information in the provided context to suggest they are asserting on behalf of an operating company against competitors.
  8. Defensive aggregator (anti-NPE) — Not present. The patent is currently owned by Lepton Computing LLC, which is actively asserting it.

Verdict

NPE — moderate confidence. While there are no recorded transfers in the USPTO assignment record, public reports characterize Lepton Computing LLC as a "Non-Practicing Entity" that has not commercially produced a device, but rather holds patents to sue other companies. The current litigation against Samsung, filed around April 26, 2026, supports the assertion-focused nature of the entity.

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

Generated 6/1/2026, 12:45:51 PM