F04C 2240/20
Rotors
F04C2240/20 (Rotors) appears on 527 US grants and 685 published applications in this corpus.
Search patents in F04C- Granted patents
- 527
- Published applications
- 685
- Assignees
- 313
- Inventors
- 1,254
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 3 | 0 |
| 2004 | 0 | 3 |
| 2005 | 1 | 3 |
| 2006 | 0 | 2 |
| 2007 | 0 | 7 |
| 2008 | 4 | 5 |
| 2009 | 4 | 5 |
| 2010 | 4 | 16 |
| 2011 | 7 | 17 |
| 2012 | 8 | 16 |
| 2013 | 4 | 16 |
| 2014 | 12 | 21 |
| 2015 | 21 | 13 |
| 2016 | 13 | 35 |
| 2017 | 20 | 78 |
| 2018 | 40 | 71 |
| 2019 | 50 | 68 |
| 2020 | 42 | 48 |
| 2021 | 49 | 77 |
| 2022 | 61 | 56 |
| 2023 | 64 | 48 |
| 2024 | 59 | 37 |
| 2025 | 44 | 27 |
| 2026 | 15 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gear pump for microvaporizer cartridge8 Sep 2026US 12,728,213 B2Cental Victory Limited Hk
- Vacuum pump assembly with improved process by-product holding capacity1 Sep 2026US 12,723,588 B2Beijing Grand Hitek. Co., Ltd.
- Rotary pump with telescoping rotor sections that vary the flow rate18 Aug 2026US 12,710,040 B1Pratt & Whitney Canada Corp.
- Sliding vane pump or turbine having track followers11 Aug 2026US 12,704,069 B2Amorphic Tech Ltd
- Screw pump and its components4 Aug 2026US 12,698,769 B2Illinois Tool Works Inc.
- Metal felt and brush structures as sealing elements in metal-metal mud motors10 Sep 2026US 2026/0266284 A1Baker Hughes Oilfield Operations LLC
- Co-rotating scroll compressor27 Aug 2026US 2026/0251142 A1Kabushiki Kaisha Toyota Jioshokki
- Armahn Rotary Pump27 Aug 2026US 2026/0251143 A1
- Eccentric Screw Pump Device, Pump System, Discharge System and Use13 Aug 2026US 2026/0235121 A1Putzmeister Engineering GmbH
- Gear pump parallel load path30 Jul 2026US 2026/0218702 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Compound engine system with rotary engine21US 9,027,345 B2Pratt & Whitney Canada Corp. · 2015
- Rotary engine18US 7,713,042 B12010
- Rotary engine vane wing apparatus and method of operation therefor15US 8,360,760 B22013
- Progressive cavity hydraulic machine14US 9,051,780 B2Schlumberger Technology Corporation · 2015
- Ring section pump having intermediate tie rod combination13US 11,118,584 B2ITT Manufacturing Enterprises, Inc. · 2021