Field briefing
D21F · Paper-making machines
Paper-making machines; methods of producing paper thereon. Patents classified in CPC D21F, part of Textiles and paper.
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Newest patents in D21F · Paper-making machines
2 patents imported from the European Patent Office; newest published 2026-10-01; most active companies: Delfortgroup AG, 重庆霄澄电工科技有限公司.
- STROMABNEHMER FÜR ELEKTROCHEMISCHE ELEMENTE DE102025112191A1, published 2026-10-01
- 一种高匀度变压器绝缘纸板的动态成型工艺及集成制备系统 CN122629739A, published 2026-08-25
Most active companies
Counted over the newest 2 imported patents in this industry.
- Delfortgroup AG 1 patent
- 重庆霄澄电工科技有限公司 1 patent