Assignment history

Inventors

• Derek Dee Deville
• Matthew A. Palmer
• William T. Bales
• M. Sean McBrayer
• Eric Peterson
• Richard Cartledge
• Thomas O. Bales, Jr.
• Carlos Rivera

Their employers at the time of filing are not determinable from the provided patent text. No unusual patterns of inventors departing the original assignee within 12 months of filing are determinable from the provided information.

Original assignee

The original assignee is Rapidpulse Inc.
Information on whether Rapidpulse Inc. shipped a product embodying the claims, their primary line of business, and their current status (operating, acquired, dissolved, in bankruptcy) is not available in the provided patent text.

Assignment timeline

• 2022-08-03 (executed) / recorded 2022-08-03

  • Conveyance: Assignment of Assignor's Interest
  • Assignor: Syntheon 2.0, LLC
  • Assignee: Syntheon Neurovascular LLC
  • Correspondent: Not specified in the provided text.
  • Context: Transfer within affiliated entities.

• 2022-08-03 (executed) / recorded 2022-08-03

  • Conveyance: Assignment of Assignor's Interest
  • Assignor: PULSEON, INC.
  • Assignee: Rapidpulse Inc
  • Correspondent: Not specified in the provided text.
  • Context: Change of Name / Transfer within affiliated entities.

• 2022-08-03 (executed) / recorded 2022-08-03

  • Conveyance: Assignment of Assignor's Interest
  • Assignor: CARTLEDGE, RICHARD; RIVERA, CARLOS; BALES, THOMAS O., JR.; BALES, WILLIAM T.; DEVILLE, DEREK DEE; MCBRAYER, M. SEAN; PALMER, MATTHEW A.; PETERSEN, ERIC
  • Assignee: Syntheon 2.0, LLC
  • Correspondent: Not specified in the provided text.
  • Context: Inventors assigning rights to an entity.

• 2022-08-03 (executed) / recorded 2022-08-03

  • Conveyance: Assignment of Assignor's Interest
  • Assignor: Syntheon Neurovascular LLC
  • Assignee: PULSEON, INC.
  • Correspondent: Not specified in the provided text.
  • Context: Transfer within affiliated entities.

Timeline diagram

timeline
    title Ownership of US 11406402
    2022 : Application filed by Rapidpulse Inc
         : Inventors assigned to Syntheon 2.0 LLC
         : Syntheon 2.0 LLC assigned to Syntheon Neurovascular LLC
         : Syntheon Neurovascular LLC assigned to Pulseon Inc
         : Pulseon Inc assigned to Rapidpulse Inc
    2022 : Patent issued to Rapidpulse Inc

NPE / troll-pattern signals

1. Shell-entity transfer — unclear. While there are multiple transfers between entities with similar names (Syntheon 2.0, Syntheon Neurovascular LLC, Pulseon Inc, Rapidpulse Inc) on the same date, there is no specific information provided about these entities' business activities, physical addresses, or corporate structures to definitively label them as shell entities.
2. Known asserter in the chain — not present. None of the listed assignors or assignees (Rapidpulse Inc, Syntheon Neurovascular LLC, Syntheon 2.0, LLC, PULSEON, INC.) match known NPEs from public lists.
3. Repeat correspondent across the chain — unclear. Correspondent information is not specified for any of the recorded assignments in the provided text.
4. Cascading transfers — present. Multiple consecutive assignments occurred on the same date (2022-08-03) involving Syntheon 2.0, LLC, Syntheon Neurovascular LLC, PULSEON, INC., and Rapidpulse Inc. (Reel/Frame information is not provided in the original text, but the date is 2022-08-03).
5. Pre-litigation transfer — unclear. The patent was issued on 2022-08-09. The assignments occurred on 2022-08-03. Litigation began with a PTAB case (IPR2024-01261) and a US case (26-1719) at later, unspecified dates. Without knowing the exact filing dates of the litigation and the recording dates of assignments (beyond the execution date), it's unclear if a transfer happened within 6 months before the first infringement suit. However, the transfers occurred just before the patent issued.
6. Bankruptcy fire-sale — not present. There is no indication of any assignor filing for bankruptcy.
7. Privateering — unclear. There is no information to suggest privateering.
8. Defensive aggregator (anti-NPE) — not present. The chain does not end at a known defensive aggregator.

Verdict

Insufficient data.
While there are cascading transfers among entities with similar names, specific details about their business operations, product shipments, and correspondent information are lacking. This makes it impossible to confidently determine if any of these entities are shell companies or part of an NPE assertion strategy. The provided information only details internal transfers around the patent issue date.

For verification, see the USPTO Patent Assignment Search page: https://assignmentcenter.uspto.gov/assignments/assignment-result.html?pat_num=[11406402](/patent/11406402)