Company patents

Zhejiang Sunny Optical Co., Ltd

Zhejiang Sunny Optical Co., Ltd's patent strategy reveals a surprising and significant decline in its core "Optical Elements & Systems" category, which constitutes 100.0% of its portfolio, with a -90.6% year-over-year drop in 2025 and only 1 patent so far in 2026, indicating a substantial shift away from this historically dominant area. The company's minor forays into "Pictorial / Video Communications" and "Photographic Apparatus" have also seen a complete cessation of patenting activity in 2025 and 2026, suggesting a broad retrenchment in its patenting efforts across all categories.

Patent Trend by Technology Area

Yearly patent publications since 2023

Product themes

Product-level themes inferred from filings since 2023, with category chips showing where each theme appears. Select a theme to filter the patents below.

92 US filings (since 2023) · 3 categories · 4 themes

Patents

Showing 1-10 of 264

Page 1 of 27