Field briefing
F04D · Non-positive-displacement pumps
Non-positive-displacement pumps. Patents classified in CPC F04D, part of Engines, machines, heating and lighting.
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 F04D · Non-positive-displacement pumps
16 patents imported from the European Patent Office; newest published 2026-09-10; most active companies: Shenzhen Giikfun Tech Co Ltd, A O Smith China Water Heater Co Ltd, Choi YU Seok.
- FAN US20260266313A1, published 2026-09-10
- 一种高防护功率变流器 CN122662114A, published 2026-08-28
- 一种通风系统 CN122650462A, published 2026-08-28
- MAGNETIC SUCTION FAN US20260243277A1, published 2026-08-20
- 一种风机及吸油烟设备 CN122589757A, published 2026-08-18
- Movable negative oxygen ion generator CN121529310A, published 2026-02-13
- METHODS AND APPARATUS FOR IONIZING BLOWERS HAVING ANGLED/ROTATABLE COLLIMATION WO2026036005A1, published 2026-02-12
- Air blower and/or vacuum with static charge mitigation US20260013024A1, published 2026-01-08
- Blower CN120845361A, published 2025-10-28
- Micro-source self-powered negative ion generating device CN120414274A, published 2025-08-01
- BODILY SENSATION TYPE WEATHER IMPLEMENTING APPARATUS KR20250079772A, published 2025-06-04
- Novel table lamp fan convenient to carry CN209856078U, published 2019-12-27
- Pendent lamp bulb processing exhaust device CN107946170A, published 2018-04-20
- Latent oil pump soft start of separate unit converter control and energy -conserving temperature regulating device of fan CN204900284U, published 2015-12-23
- Detachable and portable folding electric fan CN204025112U, published 2014-12-17
- Mini atomizing water fan CN202612136U, published 2012-12-19
Most active companies
Counted over the newest 16 imported patents in this industry.
- Shenzhen Giikfun Tech Co Ltd 2 patents
- A O Smith China Water Heater Co Ltd 1 patent
- Choi YU Seok 1 patent
- Illinois Tool Works 1 patent
- Shanghai Yuanren Environmental Tech Co Ltd 1 patent
- Sharp KK 1 patent
- Shenzhen Tianzhe Tech Co Ltd 1 patent
- SUN Yifu 1 patent
Connected industries
- H01F · Magnets 4 patents in both
- F24F · Air-conditioning 3 patents in both