Patent 9529918

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

  • Joey Joseph Simhon: Employer at time of filing not determinable from the patent text.
  • Amir Taichman: Employer at time of filing not determinable from the patent text.
  • Adam Kariv: Employer at time of filing not determinable from the patent text.

The patent lists "Doat Media Ltd" as the original assignee and the inventors are also listed as assignors in the 2013-12-11 reassignment to Doat Media Ltd, suggesting they were likely employed by Doat Media Ltd at the time of filing. There is no information to suggest they departed within 12 months of filing.

Original assignee

The entity named on the issued patent is Doat Media Ltd.
It is not determinable from the provided text whether Doat Media Ltd shipped a product embodying the claims or their primary line of business. Their current status is not determinable from the provided text, other than that the patent was reassigned from them in 2022.

Assignment timeline

  • 2013-12-11 (executed) / recorded 2013-12-11

    • Conveyance: Assignment of Assignors Interest
    • Assignor: KARIV, ADAM, SIMHON, JOEY JOSEPH, TAICHMAN, AMIR (Inventors)
    • Assignee: DOAT MEDIA LTD.
    • Correspondent: BROWDY AND NEIMARK, P.L.L.C., 1625 K STREET, N.W. SUITE 1000, WASHINGTON, DISTRICT OF COLUMBIA, 20006
    • Context: Internal transfer from inventors to initial assignee.

  • 2022-07-28 (executed) / recorded 2022-07-28 — Reel 059952/0126

    • Conveyance: Assignment of Assignors Interest
    • Assignor: DOAT MEDIA LTD
    • Assignee: HYPERQUERY LLC
    • Correspondent: LERNER, DAVID, LITTENBERG, KRUMHOLZ & MENTLIK, LLP, 600 SOUTH AVENUE WEST, WESTFIELD, NEW JERSEY, 07090
    • Context: Transfer-to-asserter.

Timeline diagram

timeline
    title Ownership of US 9529918
    2013 : Assigned to Doat Media Ltd
    2022 : Assigned to Hyperquery LLC

NPE / troll-pattern signals

  1. Shell-entity transfer — Present. The transfer from Doat Media Ltd to Hyperquery LLC (Reel 059952/0126, 2022-07-28) is a strong signal. Hyperquery LLC's name ("Hyperquery") and the extensive litigation activity with numerous defendants (as detailed in the Litigation Summary) strongly suggest a licensing-only entity that does not ship products. The nature of these cases (patent infringement claims across various districts against numerous companies) is characteristic of a shell entity engaged in assertion.

  2. Known asserter in the chain — Present. Hyperquery LLC is listed as a high-frequency plaintiff by Unified Patents, and the extensive litigation detailed in the "Litigation Summary" confirms its role as a patent asserter.

  3. Repeat correspondent across the chain — Not present. The correspondent changed between the first (BROWDY AND NEIMARK, P.L.L.C.) and second (LERNER, DAVID, LITTENBERG, KRUMHOLZ & MENTLIK, LLP) recorded assignments.

  4. Cascading transfers — Not present. There are only two recorded assignments, which does not constitute cascading transfers.

  5. Pre-litigation transfer — Present. The assignment to Hyperquery LLC occurred on 2022-07-28 (Reel 059952/0126). The first reported litigation case, HyperQuery LLC v. LG Electronics U.S.A., Inc. (Case Number: 2:23-cv-00007), was filed on January 8, 2023, which is less than 6 months after the assignment. This indicates the chain was arranged to enable assertion.

  6. Bankruptcy fire-sale — Not present. No evidence of bankruptcy in the assignment records or patent text.

  7. Privateering — Unclear. While Hyperquery LLC asserts patents, there is no direct evidence from the provided text or assignment records to suggest that Doat Media Ltd transferred the patent with an agreement for Hyperquery LLC to assert on Doat Media Ltd's behalf against competitors.

  8. Defensive aggregator (anti-NPE) — Not present. The chain ends with Hyperquery LLC, which is an asserter, not a defensive aggregator.

Verdict

NPE — high confidence

This verdict is driven by multiple strong signals: the transfer to Hyperquery LLC (Reel 059952/0126, 2022-07-28), which is a known high-frequency plaintiff (asserter), and the pre-litigation transfer date (within 6 months of the first lawsuit). These factors strongly indicate that the patent is being used for assertion purposes by a non-practicing entity.

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

Generated 5/29/2026, 9:01:15 PM