F04C 2270/20
Flow
F04C2270/20 (Flow) appears on 78 US grants and 100 published applications in this corpus.
Search patents in F04C- Granted patents
- 78
- Published applications
- 100
- Assignees
- 74
- Inventors
- 238
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 9 |
| 2006 | 2 | 4 |
| 2007 | 5 | 1 |
| 2008 | 2 | 1 |
| 2009 | 0 | 3 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 3 | 4 |
| 2013 | 4 | 2 |
| 2014 | 2 | 1 |
| 2015 | 1 | 4 |
| 2016 | 0 | 4 |
| 2017 | 2 | 4 |
| 2018 | 3 | 13 |
| 2019 | 3 | 6 |
| 2020 | 6 | 6 |
| 2021 | 6 | 6 |
| 2022 | 5 | 7 |
| 2023 | 7 | 10 |
| 2024 | 8 | 6 |
| 2025 | 4 | 2 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pump device, respiratory device and method for providing a respiratory gas24 Mar 2026US 12,582,793 B2Weinmann Emergency Medical Technology GmbH + Co. KG
- Pump and method to attenuate pulses at the discharge24 Mar 2026US 12,584,483 B2Magpumps Limited
- Method for controlling a rotary screw compressor17 Feb 2026US 12,553,436 B2Gardner Denver Deutschland GmbH
- Air compressor having vacuum and associated methods for loading and extracting materials30 Dec 2025US 12,510,077 B2Industrial Vacuum Transfer Services USA, LLC
- Methods for measuring fluid flow of fluid supply assembly5 Aug 2025US 12,378,959 B2Valco Cincinnati, Inc.
- Air compressor having vacuum and associated methods for loading and extracting materials23 Apr 2026US 2026/0110299 A1Industrial Vacuum Transfer Services USA, LLC
- Method for determining or monitoring the delivery flow of an eccentric screw pump5 Feb 2026US 2026/0036462 A1Seepex GmbH
- Methods for measuring fluid flow of fluid supply assembly9 Oct 2025US 2025/0314250 A1Valco Cincinnati, Inc.
- Electric pump system3 Jul 2025US 2025/0215872 A1KYB Corporation
- Method for controlling a rotary screw compressor5 Dec 2024US 2024/0401595 A1Gardner Denver Deutschland GmbH
Most cited
By later US patents
- Oil flow protection scheme71US 5,884,494 AAmerican Standard Inc. · 1999
- Surgical evacuation sensing and display58US 11,304,745 B2Cilag GmbH International · 2022
- Method for controlling fluid flow through a compressed fluid system41US 6,123,510 AIngersoll-Rand Company · 2000
- Variable displacement pump having throttled control passages37US 5,562,432 AJidosha Kiki Co., Ltd. · 1996
- Fuel delivery system22US 6,810,674 B2Argo-Tech Corporation · 2004