Field briefing
B28D · Working stone or stone-like materials
Working stone or stone-like materials. Patents classified in CPC B28D, part of Manufacturing and transport.
Dates, owners, statuses and filings come from the published records. Derived views are counted from them. Highlighted text is a plain-English AI reading, written from a patent's title and abstract. Legal statuses and expiry dates are estimates, not legal advice.
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Newest patents in B28D · Working stone or stone-like materials
2 patents imported from the European Patent Office; newest published 2026-07-02; most active companies: Huangshan Yongzhou Instr Co Ltd, Sony Semiconductor Solutions Corp.
- SEMICONDUCTOR LASER AND METHOD OF MANUFACTURING SEMICONDUCTOR LASER WO2026140609A1, published 2026-07-02
- Device for segmenting full-page resistor disc of oil level sensor into pieces CN121790106A, published 2026-04-03
Most active companies
Counted over the newest 2 imported patents in this industry.
- Huangshan Yongzhou Instr Co Ltd 1 patent
- Sony Semiconductor Solutions Corp 1 patent