Field briefing
E04D · Roof coverings
Roof coverings; sky-lights; gutters; roof-working tools. Patents classified in CPC E04D, part of Construction and mining.
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.
Who works on this, where, and with whom
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Connected industries
Other industries that share patents, companies or citations with Roof coverings.
Newest patents in E04D · Roof coverings
4 patents imported from the European Patent Office; newest published 2026-08-25; most active companies: Chen Jufang, Chengdu Jiameijia SCI & Tech, Guangzhou Huasen Building AND ENG Design Consultants Co Ltd.
- 一种钢结构工程屋顶及墙面光伏电站施工工法 CN122630006A, published 2026-08-25
- Water diversion and lightning protection integrated stepped roof and installation method thereof CN121575883A, published 2026-02-27
- High-efficiency cooling solar bus shelter CN104234452A, published 2014-12-24
- Movable watchhouse CN104234454A, published 2014-12-24
Most active companies
Counted over the newest 4 imported patents in this industry.
- Chen Jufang 1 patent
- Chengdu Jiameijia SCI & Tech 1 patent
- Guangzhou Huasen Building AND ENG Design Consultants Co Ltd 1 patent
- 中国建筑第六工程局有限公司 1 patent
- 中建六局建设发展有限公司 1 patent
Connected industries
- Y02B · Climate change mitigation technologies related to buildings 3 patents in both