F04B 2203/0209
Rotational speed
F04B2203/0209 (Rotational speed) appears on 361 US grants and 401 published applications in this corpus.
Search patents in F04B- Granted patents
- 361
- Published applications
- 401
- Assignees
- 291
- Inventors
- 966
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 5 | 0 |
| 1999 | 8 | 0 |
| 2000 | 12 | 0 |
| 2001 | 8 | 0 |
| 2002 | 7 | 5 |
| 2003 | 9 | 7 |
| 2004 | 4 | 12 |
| 2005 | 3 | 5 |
| 2006 | 11 | 13 |
| 2007 | 5 | 8 |
| 2008 | 2 | 7 |
| 2009 | 5 | 15 |
| 2010 | 6 | 8 |
| 2011 | 3 | 12 |
| 2012 | 9 | 15 |
| 2013 | 6 | 20 |
| 2014 | 13 | 17 |
| 2015 | 16 | 16 |
| 2016 | 9 | 14 |
| 2017 | 17 | 24 |
| 2018 | 10 | 27 |
| 2019 | 25 | 24 |
| 2020 | 22 | 29 |
| 2021 | 22 | 31 |
| 2022 | 21 | 19 |
| 2023 | 19 | 29 |
| 2024 | 23 | 19 |
| 2025 | 17 | 11 |
| 2026 | 15 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for controlling pulse mode pumping in infusion systems29 Sep 2026US 12,746,326 B2Baxter Healthcare S. A.
- Motor power optimization for downhole motors22 Sep 2026US 12,742,450 B2Schlumberger Technology Corporation
- Electrical sprayer22 Sep 2026US 12,742,452 B2Mmlj, Inc
- Electric compressor7 Jul 2026US 12,674,463 B2Sanden Corporation
- Electric pump system23 Jun 2026US 12,663,002 B2KYB Corporation
- Variable speed pumping system and method8 Oct 2026US 2026/0309157 A1Pentair Water Pool and Spa, Inc.
- Variable speed pumping system and method1 Oct 2026US 2026/0298251 A1Pentair Water Pool and Spa, Inc.
- Ac motor control device and air conditioning device27 Aug 2026US 2026/0254387 A1Mitsubishi Electric Corporation
- Electric cylinder device20 Aug 2026US 2026/0243240 A1Advics Co., Ltd.
- Controlled stop of an electric hydraulic fracking pump23 Jul 2026US 2026/0210349 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Cold weather package for oil field hydraulics309US 9,611,728 B2U.S. Well Services, LLC · 2017
- Variable rate pumping system276US 7,563,076 B2Halliburton Energy Services.Inc. · 2009
- Infusion pump having power-saving modes246US 5,791,880 ASabratek Corporation · 1998
- Infusion pump having power-saving modes212US 5,628,619 ASabratek Corporation · 1997
- Innovative pumping system for peristaltic pumps201US 5,215,450 A1993