Patent 10959649

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.

Active provider: Google · gemini-2.5-flash

Ownership chain (2)

Asserters network →

Structured records extracted from the assignment-history narrative below. Each entity links to its full ownership-network profile.

2018-04-25 · Assignment
FEI, Ming Shun PHYSICAL ENTERPRISES INC.
2018-07-10 · Assignment
PHYSICAL ENTERPRISES INC.Beijing Shunyuan Kaihua Technology Limited
internal reorg

Assignment history

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Inventors

The sole named inventor for US Patent 10,959,649 is Ming Shun Fei.

At the time of filing (January 29, 2015), the application was filed by Beijing Shunyuan Kaihua Technology Co Ltd, which is also listed as the original assignee. This typically implies that Ming Shun Fei was employed by Beijing Shunyuan Kaihua Technology Co Ltd and assigned his rights to the company upon invention or filing. However, an assignment record from April 25, 2018, explicitly shows Ming Shun Fei as the assignor of the patent rights to PHYSICAL ENTERPRISES INC., which is an unusual pattern if all rights had been fully assigned to the initial corporate applicant. This could suggest that the inventor retained some rights, or that the initial filing arrangement was more complex than a standard employee assignment.

Original assignee

The original assignee, as listed on the issued patent and by Google Patents, is Beijing Shunyuan Kaihua Technology Co Ltd.

Information regarding whether Beijing Shunyuan Kaihua Technology Co Ltd directly shipped a product embodying the claims is not immediately determinable from the provided patent text or readily available public records without further in-depth research. Their primary line of business, based on their name, suggests a technology or manufacturing focus, potentially related to the "systems and methods for stride length calibration" described in the patent. Their current status is "Active" according to Google Patents, expiring on August 14, 2035.

Assignment timeline

The following assignments are recorded for US Patent 10,959,649 as identified in the Google Patents legal events timeline. Specific reel/frame numbers and correspondent information are unavailable without direct access to the USPTO Assignment Center.

2018-04-25 (executed) / recorded 2018-04-25 — Reel Unavailable/Unavailable
- Conveyance: Assignment (listed as "reassignment" in Google Patents)
- Assignor: FEI, Ming Shun
- Assignee: PHYSICAL ENTERPRISES INC.
- Correspondent: Unavailable
- Context: Transfer of patent rights from the inventor to an intermediate entity.
2018-07-10 (executed) / recorded 2018-07-10 — Reel Unavailable/Unavailable
- Conveyance: Assignment (listed as "reassignment" in Google Patents)
- Assignor: PHYSICAL ENTERPRISES INC.
- Assignee: Beijing Shunyuan Kaihua Technology Limited
- Correspondent: Unavailable
- Context: Transfer of patent rights from an intermediate entity to another entity with a similar name to the original assignee.

Timeline diagram

timeline
    title Ownership of US 10959649
    2015 : Filed by Beijing Shunyuan Kaihua Tech Co Ltd
    2018 : Assigned to Physical Enterprises Inc
         : Assigned to Beijing Shunyuan Kaihua Tech Ltd
    2021 : Issued
    2025 : Litigation filed CAFC 25-1230

NPE / troll-pattern signals

Shell-entity transfer — Unclear. PHYSICAL ENTERPRISES INC. is a generic name, which could indicate a shell entity. Without product information or details about its address and corporate structure, its nature remains uncertain. Beijing Shunyuan Kaihua Technology Limited's relationship to Beijing Shunyuan Kaihua Technology Co Ltd (the original applicant and current assignee) is also unclear; it could be a related operating entity or a holding company.
Known asserter in the chain — Not present. Neither PHYSICAL ENTERPRISES INC. nor Beijing Shunyuan Kaihua Technology Limited appear on the provided list of known high-frequency NPE plaintiffs.
Repeat correspondent across the chain — Unclear. Correspondent information is not available from the provided data.
Cascading transfers — Present. The patent underwent two transfers within a short period of less than three months (April 25, 2018, to July 10, 2018).
Pre-litigation transfer — Not present. The assignments occurred in 2018, while the noted litigation (CAFC case 25-1230) has a docket number that suggests a filing year of 2025 or 2026, well after the transfers.
Bankruptcy fire-sale — Unclear. There is no information to suggest a bankruptcy event.
Privateering — Unclear. There is no information to suggest privateering.
Defensive aggregator (anti-NPE) — Not present. The chain does not terminate at a known defensive aggregator.

Verdict

NPE — moderate confidence

This verdict is based on the presence of cascading transfers, with two assignments occurring within less than three months in 2018. Additionally, the generic name of "PHYSICAL ENTERPRISES INC." as an intermediate assignee raises suspicion of it potentially being a shell entity, although this cannot be confirmed without further investigation into its operations and corporate structure. The litigation mentioned on Google Patents (CAFC case 25-1230) suggests future or ongoing assertion, but its relation to these specific transfers is not immediate due to the time gap.

For verification of the assignment records, please refer to the USPTO Patent Assignment Search: https://assignmentcenter.uspto.gov/

Generated 5/30/2026, 6:47:49 PM