Patent 10643266

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. 2019-03-06 · Assignment

    ISAACSON, THOMAS M; DURHAM, RYAN CONNELLMONTICELLO ENTERPRISES 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.

✓ Generated

Inventors

  • Thomas M. Isaacson (Employer at filing not determinable from provided text)
  • Ryan Connell Durham (Employer at filing not determinable from provided text)

No unusual patterns, such as all inventors departing the original assignee within 12 months of filing, can be determined from the provided information.

Original assignee

Monticello Enterprises LLC is the original assignee named on the issued patent.
Based on the provided patent information, it is not determinable whether Monticello Enterprises LLC ships a product embodying the claims or their primary line of business.
Its current status is "Active".

Assignment timeline

The patent abstract states that the original assignee is Monticello Enterprises LLC and that the patent was assigned to Monticello Enterprises LLC on 2019-03-06. No further assignment records are available through Google Patents legal events. To conduct a comprehensive search for assignment records, I would need to use the USPTO Patent Assignment Search. Since I cannot perform live searches, I will state that based on the provided text, there is one assignment event mentioned.

  • 2019-03-06 (executed) / recorded 2019-03-06
    • Conveyance: Assignment of Assignors Interest
    • Assignor: ISAACSON, THOMAS M., DURHAM, RYAN CONNELL
    • Assignee: Monticello Enterprises LLC
    • Correspondent: Not specified in the provided text.
    • Context: Transfer from inventors to assignee.

If the USPTO Assignment Center had no records for this patent, I would state that plainly. However, based on the patent details, an assignment from the inventors to Monticello Enterprises LLC is recorded. To determine if there are any subsequent assignments, access to the USPTO Assignment Center would be required. Without that access, I must proceed with the information available.

Timeline diagram

timeline
    title Ownership of US 10643266
    2019 : Inventors assigned to Monticello Enterprises LLC
    2019 : Application filed by Monticello Enterprises LLC
    2020 : Patent granted to Monticello Enterprises LLC

NPE / troll-pattern signals

  1. Shell-entity transfer — unclear. The initial assignment is from the inventors to Monticello Enterprises LLC. While Monticello Enterprises LLC could be a licensing-only entity, there's no explicit information in the provided text about its product activity, primary business line, or corporate structure (e.g., registered-agent address, single-member LLC) to confirm this.
  2. Known asserter in the chain — not present. Monticello Enterprises LLC is not explicitly listed as a known asserter in the provided information or common public NPE lists.
  3. Repeat correspondent across the chain — unclear. The correspondent information is not available in the provided patent text for the assignment from the inventors to Monticello Enterprises LLC.
  4. Cascading transfers — not present. Only one assignment from the inventors to Monticello Enterprises LLC is explicitly detailed in the provided text.
  5. Pre-litigation transfer — not present. The assignment to Monticello Enterprises LLC occurred on March 6, 2019, while the litigation cases cited (6:23-cv-00753, 6:23-cv-00761, 6:23-cv-00763) were filed in 2023. This is more than 6 months after the assignment.
  6. Bankruptcy fire-sale — not present. There is no indication of bankruptcy proceedings for any entity in the assignment chain.
  7. Privateering — unclear. No information is available to suggest an operating company transferred the patent to an NPE for assertion on its behalf.
  8. Defensive aggregator (anti-NPE) — not present. The patent is currently held by Monticello Enterprises LLC, not a defensive aggregator.

Verdict

NPE — moderate confidence

The litigation status shows Monticello Enterprises LLC as the plaintiff in multiple active cases in the Texas Western District Court (6:23-cv-00753, 6:23-cv-00761, 6:23-cv-00763). This aggressive assertion pattern, coupled with the lack of information regarding Monticello Enterprises LLC shipping products or its primary line of business, points towards an NPE. However, without further details on the entity's operations or repeat correspondent patterns, it remains at moderate confidence.

To verify, refer to the USPTO Assignment Center search page: https://assignmentcenter.uspto.gov/

Generated 5/31/2026, 12:46:20 PM