F04C 25/00
Adaptations of pumps for special use of pumps for elastic fluids
F04C25/00 (Adaptations of pumps for special use of pumps for elastic fluids) appears on 418 US grants and 557 published applications in this corpus.
Search patents in F04C- Granted patents
- 418
- Published applications
- 557
- Assignees
- 224
- Inventors
- 913
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 1 |
| 2003 | 5 | 8 |
| 2004 | 1 | 1 |
| 2005 | 2 | 9 |
| 2006 | 2 | 4 |
| 2007 | 2 | 7 |
| 2008 | 3 | 13 |
| 2009 | 4 | 8 |
| 2010 | 4 | 14 |
| 2011 | 4 | 14 |
| 2012 | 3 | 22 |
| 2013 | 16 | 27 |
| 2014 | 10 | 47 |
| 2015 | 27 | 36 |
| 2016 | 18 | 25 |
| 2017 | 26 | 36 |
| 2018 | 25 | 33 |
| 2019 | 19 | 37 |
| 2020 | 30 | 42 |
| 2021 | 23 | 44 |
| 2022 | 40 | 31 |
| 2023 | 38 | 35 |
| 2024 | 36 | 22 |
| 2025 | 25 | 19 |
| 2026 | 18 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vacuum pump assembly with improved process by-product holding capacity1 Sep 2026US 12,723,588 B2Beijing Grand Hitek. Co., Ltd.
- Sealing gasket25 Aug 2026US 12,716,493 B2Edwards Limited
- Throttle valve for coolant circulation system18 Aug 2026US 12,710,056 B2Ingersoll-Rand Industrial U.S., Inc.
- Vacuum pump11 Aug 2026US 12,704,127 B2Milwaukee Electric Tool Corporation
- Sealing gasket with one or more positioning protrusions7 Jul 2026US 12,674,457 B2Edwards Limited
- Vacuum pump1 Oct 2026US 2026/0298238 A1Pfeiffer Vacuum GmbH
- Reducing power consumption in vacuum pumps1 Oct 2026US 2026/0298240 A1Edwards Limited
- Scroll vacuum pump and scroll vacuum pump system1 Oct 2026US 2026/0298241 A1Pfeiffer Vacuum Technology AG
- Vacuum pump24 Sep 2026US 2026/0286961 A1Edwards Limited
- Vacuum pump17 Sep 2026US 2026/0275984 A1
Most cited
By later US patents
- Vehicle mounted gas well pumping unit65US 6,626,646 B22003
- Vacuum pump system42US 4,699,570 AITT Industries, Inc. · 1987
- Unitary sliding vane compressor-expander and electrical generation system38US 6,589,033 B1Phoenix Analysis and Design Technologies, Inc. · 2003
- Tire inflation system36US 9,151,288 B2Aperia Technologies, Inc. · 2015
- Method of scavenging air and oil and gear pump therefor35US 5,004,407 ASundstrand Corporation · 1991