Patent 10624575

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

  • Feifei Zhang: Anhui Huami Information Technology Co., Ltd.
  • Xiaoming Ren: Anhui Huami Information Technology Co., Ltd.

It is common for employee-inventors to assign their patent rights to their employer, especially if they were hired to invent or used company resources. Both inventors were employed by Anhui Huami Information Technology Co., Ltd. at the time of filing.

Original assignee

The original assignee named on the issued patent is Anhui Huami Information Technology Co., Ltd.

Anhui Huami Information Technology Co., Ltd. is a Chinese company primarily engaged in the development, manufacturing, and selling of smart, wearable technological devices. This includes smartwatches and fitness bands, often under the Amazfit and Zepp brands. The company has a significant global presence, shipping over 200 million units to more than 90 countries.

Anhui Huami Information Technology Co., Ltd. is a variable interest entity (VIE) of Zepp Health Corporation (formerly Huami Corporation), which was incorporated in the Cayman Islands in December 2014. Zepp Health Corporation is a publicly traded company on the NYSE (ZEPP). Therefore, Anhui Huami Information Technology Co., Ltd. is currently operating as part of Zepp Health Corporation.

Assignment timeline

The USPTO Assignment Center was searched for patent number US10624575.

  • 2017-04-26 (executed) / recorded 2017-04-26 - Reel 039603/0503
    • Conveyance: Assignment
    • Assignor: REN, XIAOMING; ZHANG, FEIFEI
    • Assignee: ANHUI HUAMI INFORMATION TECHNOLOGY CO.,LTD.
    • Correspondent: LI, JINLING, ANHUI HUAMI INFORMATION TECHNOLOGY CO.,LTD., FLOOR 21, BLOCK B, WANLI PLAZA, NO.68 WANGJIANG WEST ROAD, HEFEI, CHINA
    • Context: Inventors assigning rights to their employer.
  • 2025-02-20 (executed) / recorded 2025-02-20 - Reel 062770/0670
    • Conveyance: Assignment
    • Assignor: ANHUI HUAMI INFORMATION TECHNOLOGY CO., LTD.
    • Assignee: ANHUI HUAMI HEALTH TECHNOLOGY CO., LTD.
    • Correspondent: ANHUI HUAMI HEALTH TECHNOLOGY CO., LTD., FLOOR 7, BLOCK B2, HUAMI GLOBAL INNOVATION CENTER, NO.900 WANGJIANG WEST ROAD, HEFEI, CHINA
    • Context: Internal corporate restructuring/transfer between related entities (Anhui Huami Information Technology Co., Ltd. is a VIE of Zepp Health, which also includes Anhui Huami Health Technology Co., Ltd.).
  • 2026-04-10 (executed) / recorded 2026-04-10 - Reel 064434/0995
    • Conveyance: Assignment
    • Assignor: ANHUI HUAMI HEALTH TECHNOLOGY CO., LTD.
    • Assignee: ZEPP NORTH AMERICA, INC.
    • Correspondent: ZEPP NORTH AMERICA, INC., 1551 MCCARTHY BLVD, MILPITAS, CA 95035, UNITED STATES
    • Context: Internal corporate restructuring/transfer to a US subsidiary of Zepp Health Corporation.

Timeline diagram

timeline
    title Ownership of US 10624575
    2015 : Priority Date
    2017 : Filed; Inventors assigned to Anhui Huami Info Tech Co., Ltd.
    2020 : Patent Issued
    2025 : Assigned to Anhui Huami Health Tech Co., Ltd.
    2026 : Assigned to Zepp North America Inc.

NPE / troll-pattern signals

  1. Shell-entity transferNot present. The transfers appear to be between related operating entities within the Zepp Health Corporation structure, which develops and sells smart wearables.
  2. Known asserter in the chainNot present. None of the assignees (Anhui Huami Information Technology Co., Ltd., Anhui Huami Health Technology Co., Ltd., Zepp North America, Inc.) are identified as known patent assertion entities (NPEs) in public directories.
  3. Repeat correspondent across the chainNot present. There are different correspondents listed for each assignment in the chain, corresponding to the different entities involved in the transfers. (Reel 039603/0503: LI, JINLING, ANHUI HUAMI INFORMATION TECHNOLOGY CO.,LTD.; Reel 062770/0670: ANHUI HUAMI HEALTH TECHNOLOGY CO., LTD.; Reel 064434/0995: ZEPP NORTH AMERICA, INC.)
  4. Cascading transfersNot present. The assignments are spaced out by several years (2017 to 2025, and 2025 to 2026).
  5. Pre-litigation transferUnclear. While Zepp has filed litigation against Ouraring Inc. in April 2026, it is unclear if US10624575 is among the patents asserted in that litigation. The last assignment to Zepp North America, Inc. was recorded on 2026-04-10 (Reel 064434/0995). If this patent is part of the Ouraring suit, this would be a pre-litigation transfer, as the suit was filed in April 2026, the same month as the assignment.
  6. Bankruptcy fire-saleNot present. The original assignee and subsequent assignees are part of Zepp Health Corporation, an operating company that is publicly traded and actively developing products. There is no indication of bankruptcy.
  7. PrivateeringNot present. There is no evidence to suggest that Zepp Health Corporation is using an NPE to assert patents on its behalf. All transfers appear to be within the corporate family.
  8. Defensive aggregator (anti-NPE)Not present. The current assignee, Zepp North America, Inc., is an operating company, not a defensive aggregator.

Verdict

Operating-company assertion
The patent chain clearly indicates transfers between related operating entities of Zepp Health Corporation (formerly Huami Corporation), a global smart wearable and health technology leader. The current assignee, Zepp North America, Inc., is a subsidiary of this operating company, which develops and sells products embodying the claims. While the potential pre-litigation transfer to Zepp North America, Inc. for a lawsuit filed in April 2026 (Reel 064434/0995) could be a tactical move, it is within the context of an operating company asserting its own patents, not a transfer to a shell entity.

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

Generated 5/31/2026, 12:48:04 PM