Assignment history

Inventors

The named inventors for US patent 11905895 are Mark J. Sarder, Aleko D. Sotiriades, James J. Dehn, and Leigh Jenison. At the time of the application's filing (March 14, 2023), these individuals were likely employed by Champion Power Equipment Inc., the original assignee. No unusual patterns, such as mass departures of inventors, are determinable from the provided information.

Original assignee

The original assignee named on the issued patent is Champion Power Equipment Inc.

Champion Power Equipment Inc. is a manufacturer of power equipment, including the dual fuel generators that embody the claims of US11905895. Their primary line of business involves designing, manufacturing, and marketing generators and other outdoor power equipment. As of the current date (May 22, 2026), the company's legal status is listed as "Active" on Google Patents, indicating it is an operating entity.

Assignment timeline

• 2023-03-14 (executed) / recorded 2023-03-24 — Reel 062630/0556

  • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
  • Assignor: DEHN, JAMES J.; JENISON, LEIGH; SARDER, MARK J.; SOTIRIADES, ALEKO D.
  • Assignee: CHAMPION ENGINE TECHNOLOGY, LLC
  • Correspondent: BJELLAND, JOSHUA D.; GABLEGOTWALS; TWO LEADERSHIP SQUARE, 211 N. ROBINSON AVE., SUITE 1100, OKLAHOMA CITY, OK 73102. This correspondent recurs in this chain.
  • Context: Internal transfer of intellectual property from inventors to a subsidiary entity.

• 2023-03-14 (executed) / recorded 2023-03-24 — Reel 062630/0567

  • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
  • Assignor: CHAMPION ENGINE TECHNOLOGY, LLC
  • Assignee: CHAMPION POWER EQUIPMENT, INC.
  • Correspondent: BJELLAND, JOSHUA D.; GABLEGOTWALS; TWO LEADERSHIP SQUARE, 211 N. ROBINSON AVE., SUITE 1100, OKLAHOMA CITY, OK 73102. This correspondent recurs in this chain.
  • Context: Internal transfer of intellectual property from a subsidiary to the parent operating company.

Timeline diagram

timeline
    title Ownership of US 11905895
    2023 : Filed by Champion Power Equip Inc
         : Assigned inventors to Champion Engine Tech LLC
         : Assigned to Champion Power Equip Inc
    2024 : Issued to Champion Power Equip Inc

NPE / troll-pattern signals

1. Shell-entity transfer — Not present. The transfers involve Champion Engine Technology, LLC and Champion Power Equipment, Inc., both of which appear to be part of the same corporate group, with the latter being an operating company that manufactures products. There is no evidence of a transfer from an operating company to a licensing-only shell entity for assertion purposes.

2. Known asserter in the chain — Not present. Neither Champion Engine Technology, LLC nor Champion Power Equipment, Inc. are identified on common public NPE lists.

3. Repeat correspondent across the chain — Present. Joshua D. Bjelland of GableGotwals is listed as the correspondent for both recorded assignments (Reel 062630/0556 and Reel 062630/0567). This indicates the same attorney or firm handled multiple recordings within this patent's assignment chain.

4. Cascading transfers — Present. Two consecutive assignments were executed on the same date (2023-03-14) and recorded on the same date (2023-03-24) (Reel 062630/0556 and 062630/0567). This rapid, back-to-back transfer, while appearing to be for internal corporate structuring, fits the definition of cascading transfers.

5. Pre-litigation transfer — Not present. The assignments were executed on 2023-03-14, the same day the patent application was filed. The patent itself was granted on 2024-02-20. While litigation related to the patent family was filed in December 2023 (e.g., 2:23-cv-02371 in Arizona), this is more than six months after the assignments. The assignments occurred at the very beginning of the patent's prosecution life rather than shortly before assertion of the granted patent.

6. Bankruptcy fire-sale — Not present. There is no indication of Champion Power Equipment Inc. undergoing bankruptcy proceedings.

7. Privateering — Not present. There is no evidence suggesting Champion Power Equipment Inc. has transferred this patent to an NPE for assertion on its behalf.

8. Defensive aggregator (anti-NPE) — Not present. The current assignee is an operating company, not a defensive aggregator.

Verdict

Operating-company assertion

The patent ownership chain shows a clear internal transfer from the inventors to a subsidiary (Champion Engine Technology, LLC) and then to the parent operating company (Champion Power Equipment, Inc.), both executed on 2023-03-14 and recorded on 2023-03-24 (Reel 062630/0556 and 062630/0567). Champion Power Equipment, Inc. is the original assignee, a known manufacturer of dual fuel generators, and is engaged in direct litigation (as indicated by multiple district court cases in 2023-2024) which points to active assertion of its intellectual property against competitors.

USPTO Assignment Center search: https://assignmentcenter.uspto.gov/patents/11905895/assignments