Patent 11048299

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 (1)

Asserters network →

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

  1. 2020-01-27 · reel 051068/0501 · Assignment of Assignors Interest

    DELAPORTE, STEPHEN E.LEPTON COMPUTING LLC

    Correspondent: R. Steven DeGeorge

    Inventor assigned rights to Lepton Computing LLC

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: Undetermined at time of filing)

Unusual patterns: The employer of the inventor at the time of filing is not determinable from the patent document. There is no information to indicate if the inventor departed an original assignee within 12 months of filing.

Original assignee

The entity named on the issued patent is Lepton Computing LLC. It is unclear from the patent text or general knowledge whether Lepton Computing LLC shipped a product embodying the claims or their primary line of business. Their current status (operating, acquired, dissolved, in bankruptcy) is also not determinable from the provided information.

Assignment timeline

  • 2020-01-27 (executed) / recorded 2020-01-27 — Reel 051068/0501
    • Conveyance: Assignment of Assignors Interest
    • Assignor: DELAPORTE, STEPHEN E.
    • Assignee: LEPTON COMPUTING LLC
    • Correspondent: R. Steven DeGeorge, Lepton Computing LLC, 2093 Philadelphia Pike #1033, Claymont, DE 19703. This correspondent appears for the only assignment in this chain.
    • Context: Inventor assigned rights to Lepton Computing LLC.

Timeline diagram

timeline
    title Ownership of US 11048299
    2010 : Priority Date
    2019 : Application Filed by Lepton Computing LLC
    2020 : Assigned to Lepton Computing LLC
    2021 : Patent Granted
    2026 : Litigation Filed

NPE / troll-pattern signals

  1. Shell-entity transfer — unclear. The initial assignment is from the inventor to Lepton Computing LLC. There is no clear evidence within the provided patent information to definitively classify Lepton Computing LLC as a shell entity.
  2. Known asserter in the chain — not present. Lepton Computing LLC is not explicitly listed as a known NPE in the provided text.
  3. Repeat correspondent across the chain — not present. R. Steven DeGeorge is the correspondent for the single assignment listed (Reel 051068/0501). There are no other assignments in this chain to assess recurrence.
  4. Cascading transfers — not present. Only one assignment from the inventor to Lepton Computing LLC is recorded.
  5. Pre-litigation transfer — unclear. The assignment was recorded on 2020-01-27. The litigation was filed in 2026. This gap makes it difficult to definitively categorize it as "pre-litigation transfer" without more precise information on the exact date the lawsuit 2:26-cv-00338 was filed in relation to this specific assignment.
  6. Bankruptcy fire-sale — not present. No indication of bankruptcy proceedings for the assignor or assignee.
  7. Privateering — not present. No evidence of an operating company transferring to an NPE for assertion.
  8. Defensive aggregator (anti-NPE) — not present. The chain does not terminate at a defensive aggregator.

Verdict

Insufficient data (no records, or only the original assignment). Only one assignment from the inventor to Lepton Computing LLC (Reel 051068/0501, recorded 2020-01-27) is present in the provided information. While litigation has been filed (case 2:26-cv-00338 in the Texas Eastern District Court, in 2026), there are insufficient further assignment records to confidently determine an NPE pattern.

Verification: https://assignmentcenter.uspto.gov/

Generated 6/1/2026, 6:49:05 AM