Hangzhou Yilai Lighting Technology Co Ltd

Hangzhou Yilai Lighting Technology Co Ltd is a China-based manufacturer of lighting products. Due to the generic nature of the name and the prevalence of similarly named entities, specific corporate details such as founding year, employee count, or a dedicated official website could not be independently verified. The company appears to be a privately-held operating company based in or around Hangzhou, China.

Based on its name and litigation activity, the company manufactures and sells lighting technology. The specific product lines are not detailed in publicly available sources. However, companies of this type often produce a range of products such as LED lamps, light fixtures, and related lighting components for consumer or commercial markets, which they may sell internationally through e-commerce platforms.

Hangzhou Yilai Lighting is an operating company actively enforcing its intellectual property rights. Its patent litigation posture is that of a plaintiff, with one tracked case filed in the U.S. District Court for the Northern District of Illinois. Having no recorded cases as a defendant suggests the company is not a primary target of patent assertion entities. This pattern is consistent with a commercial manufacturer taking action to protect its innovations rather than a non-practicing entity (NPE) whose business model is based on licensing acquired patents.

The company's single tracked case was filed on April 23, 2026, in the Northern District of Illinois. The case, Hangzhou Yilai Lighting Technology Co., Ltd. v. THE INDIVIDUALS, CORPORATIONS... IDENTIFIED IN SCHEDULE A, is a patent infringement lawsuit targeting a large number of typically unidentified online sellers. This legal strategy is commonly used by manufacturers to combat the sale of allegedly infringing or counterfeit goods by numerous small, often foreign-based sellers on large e-commerce marketplaces.