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US 10539851
Added 5/19/2026, 6:00:46 AM
⚖️ Active PTAB challenge: 1 pending proceeding against this patent
1 active — Inter Partes Review, Post-Grant Review, or Covered Business Method proceedings at the USPTO Patent Trial and Appeal Board.
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Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
US Patent 10,539,851, titled "Method for changing states of electrochromic film," was issued to Lannray Optoelectronics Zhenjiang Co Ltd, with inventors Jian Wang and Yan Zhou. The patent was filed on March 6, 2018, and issued on January 21, 2020. Its priority date is also March 6, 2018.
Abstract:
The patent describes a method for changing the optical state of an electrochromic film, which has multiple optical states. The method involves selecting a desired optical state, injecting or extracting electric charges into or from the film, monitoring the amount of injected or extracted charges, and stopping the charge transfer when the pre-set amount corresponding to the desired state is reached.
Independent Claims Overview:
- Claim 1 (Method for injecting charges): This claim describes a method for changing the optical state of an electrochromic film by injecting electric charges. The process involves selecting a desired optical state, determining a driving force (which can be voltage driving, current driving, or a combination), injecting charges using this driving force, monitoring the injected charge amount, and stopping the injection when a pre-set amount corresponding to the desired state is reached.
- Claim 8 (Method for extracting charges): Similar to Claim 1, this claim outlines a method for changing the optical state by extracting electric charges. It includes selecting a desired optical state, determining a driving force (voltage, current, or a combination), extracting charges using this force, monitoring the extracted charge amount, and stopping the extraction when a pre-set amount for the desired state is achieved.
- Claim 15 (Method for adjusting charges to pre-determined states): This claim describes a method where a plurality of pre-determined optical states are set, and the corresponding amount of electric charges for each state is determined. A desired state is then selected, a driving force is determined, and the amount of electric charges within the electrochromic film is adjusted to the determined amount for the chosen desired state.
CAFC 2026 Dockets:
A search of CAFC 2026 dockets for US patent 10,539,851 did not yield any specific cases directly involving this patent number. The search results included various other patent-related cases from 2026 but none for 10,539,851.
Generated 5/19/2026, 6:01:15 AM