Patent 10691579

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

Donavan P. Poulin. The patent does not explicitly state his employer at the time of filing.

Original assignee

The original assignee named on the issued patent is Wapp Tech Corp. The patent itself describes systems and methods for mobile application development and simulation, suggesting their primary line of business relates to software development tools or services for mobile applications. The current status of Wapp Tech Corp is "Active" according to Google Patents. It is unclear whether Wapp Tech Corp ships a product directly embodying the claims, as their business appears to be providing tools for other developers to create products.

Assignment timeline

There are no recorded assignments for US10691579B2 on the USPTO Assignment Center.

The Google Patents "Legal status" section indicates "Assigned to WAPP TECH CORP." on 2020-04-22 with the description "ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: POULIN, DONAVAN PAUL". This appears to be the initial assignment from the inventor to the company, which is common and would precede the patent being granted to Wapp Tech Corp. This event is not present in the USPTO Assignment Center search when searching by patent number.

Timeline diagram

timeline
    title Ownership of US 10691579
    2016 : Application filed by Wapp Tech Corp
    2020 : Assigned to Wapp Tech Corp
    2020 : Patent granted

NPE / troll-pattern signals

  1. Shell-entity transfer — not present. The patent is currently assigned to Wapp Tech Corp, the original assignee, which appears to be an operating company based on the patent's subject matter. No transfer to a shell entity is recorded.
  2. Known asserter in the chain — not present. No known asserters appear in the assignment history.
  3. Repeat correspondent across the chain — not present. No assignment records are available to assess this.
  4. Cascading transfers — not present. No assignment records are available to assess this.
  5. Pre-litigation transfer — unclear. There is ongoing litigation associated with this patent family. However, without assignment records, it's impossible to determine if any transfers occurred within 6 months of the first suit.
  6. Bankruptcy fire-sale — not present. No indication of bankruptcy for Wapp Tech Corp.
  7. Privateering — not present. No evidence in the available data.
  8. Defensive aggregator (anti-NPE) — not present. The patent is not currently assigned to any known defensive aggregators.

Verdict

Insufficient data. While Google Patents lists an assignment to Wapp Tech Corp in 2020, this is the initial assignment from the inventor and no further post-issuance assignments are publicly recorded on the USPTO Assignment Center. Therefore, there is insufficient data to confidently identify any NPE/troll-pattern signals beyond the initial assignment to the operating company.

For verification, see the USPTO Assignment Center search for US10691579: https://assignmentcenter.uspto.gov/ (search by patent number 10691579).

Generated 5/29/2026, 9:02:00 PM