Assignment history — US Patent 11824136

Inventors

Kun Yu (Employer: Zhejiang Jinko Solar Co Ltd / Jinko Green Energy Shanghai Management Co Ltd, based on original assignment)
Changming Liu (Employer: Zhejiang Jinko Solar Co Ltd / Jinko Green Energy Shanghai Management Co Ltd, based on original assignment)
Xinyu Zhang (Employer: Zhejiang Jinko Solar Co Ltd / Jinko Green Energy Shanghai Management Co Ltd, based on original assignment)

There are no unusual patterns indicating inventors departing the original assignee around the time of filing.

Original assignee

The entity named on the issued patent is Zhejiang Jinko Solar Co Ltd and Jinko Green Energy Shanghai Management Co Ltd. Zhejiang Jinko Solar Co Ltd is a major manufacturer of solar panels and associated photovoltaic products. Their primary line of business is the research, development, production, and sale of solar cells and photovoltaic modules. The company ships products embodying the claims of the patent, which relates to solar cell technology. Their current status is operating and active.

Assignment timeline

A search of the USPTO Patent Assignment Search database (https://assignmentcenter.uspto.gov/) for patent number US11824136 reveals no recorded assignments. This indicates that the patent ownership has not been formally transferred or recorded with the USPTO since its issuance. Therefore, the original assignees, Zhejiang Jinko Solar Co Ltd and Jinko Green Energy Shanghai Management Co Ltd, remain the recorded owners.

Timeline diagram

timeline
    title Ownership of US 11824136
    2021 : Priority date
    2022 : Application filed by Zhejiang Jinko Solar Co Ltd; Jinko Green Energy Shanghai Management Co Ltd
    2023 : Patent published and granted to Zhejiang Jinko Solar Co Ltd; Jinko Green Energy Shanghai Management Co Ltd
    2026 : Currently owned by original assignee

NPE / troll-pattern signals

Shell-entity transfer — not present. The patent remains with the original operating companies, Zhejiang Jinko Solar Co Ltd and Jinko Green Energy Shanghai Management Co Ltd.
Known asserter in the chain — not present. There are no recorded assignments to any known NPEs.
Repeat correspondent across the chain — not present. No assignment chain exists to observe recurrent correspondents.
Cascading transfers — not present. No transfers are recorded.
Pre-litigation transfer — unclear. While there are litigation cases associated with this patent family (IPR2026-00230 filed, US cases filed in Texas Southern District Court and California Northern District Court), there are no recorded assignments immediately preceding these filings. Therefore, it's unclear if any unrecorded transfers occurred to enable assertion.
Bankruptcy fire-sale — not present. The original assignees remain active and have not filed for bankruptcy.
Privateering — not present. There is no evidence of the patent being transferred to an NPE for assertion on behalf of an operating company.
Defensive aggregator (anti-NPE) — not present. The patent is not owned by a defensive aggregator.

Verdict

Insufficient data.
No assignment records are publicly available on the USPTO Assignment Center for US patent 11824136. While Google Patents indicates ongoing litigation associated with this patent family (e.g., IPR2026-00230, US cases in Texas Southern District Court and California Northern District Court), the absence of recorded assignments prevents analysis of ownership transfers, shell entities, or repeat correspondents. Without this information, it is not possible to confidently classify the patent's assertion pattern.

For verification, see the USPTO Patent Assignment Search for US11824136: https://assignmentcenter.uspto.gov/patents/11824136