F04C 29/00
Component parts, details or accessories of pumps or pumping installations, not provided
Official title: Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
F04C29/00 (Component parts, details or accessories of pumps or pumping installations, not provided) appears on 5,208 US grants and 4,820 published applications in this corpus.
Search patents in F04C- Granted patents
- 5,208
- Published applications
- 4,820
- Assignees
- 1,093
- Inventors
- 7,198
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 14 | 0 |
| 1978 | 21 | 0 |
| 1979 | 15 | 0 |
| 1980 | 18 | 0 |
| 1981 | 21 | 0 |
| 1982 | 17 | 0 |
| 1983 | 21 | 0 |
| 1984 | 45 | 0 |
| 1985 | 48 | 0 |
| 1986 | 33 | 0 |
| 1987 | 46 | 0 |
| 1988 | 49 | 0 |
| 1989 | 63 | 0 |
| 1990 | 63 | 0 |
| 1991 | 72 | 0 |
| 1992 | 66 | 0 |
| 1993 | 78 | 0 |
| 1994 | 79 | 0 |
| 1995 | 71 | 0 |
| 1996 | 71 | 0 |
| 1997 | 58 | 0 |
| 1998 | 82 | 0 |
| 1999 | 59 | 0 |
| 2000 | 116 | 0 |
| 2001 | 127 | 27 |
| 2002 | 107 | 128 |
| 2003 | 108 | 115 |
| 2004 | 94 | 153 |
| 2005 | 73 | 142 |
| 2006 | 108 | 159 |
| 2007 | 86 | 110 |
| 2008 | 73 | 145 |
| 2009 | 82 | 135 |
| 2010 | 80 | 167 |
| 2011 | 90 | 139 |
| 2012 | 122 | 151 |
| 2013 | 115 | 163 |
| 2014 | 117 | 186 |
| 2015 | 147 | 237 |
| 2016 | 156 | 232 |
| 2017 | 190 | 258 |
| 2018 | 202 | 277 |
| 2019 | 215 | 268 |
| 2020 | 239 | 306 |
| 2021 | 241 | 261 |
| 2022 | 279 | 224 |
| 2023 | 233 | 234 |
| 2024 | 322 | 218 |
| 2025 | 236 | 215 |
| 2026 | 123 | 170 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F04C 29/02Lubrication1,812
- F04C 29/0042Driving elements, brakes, couplings, transmissions specially adapted for pumps1,315
- F04C 29/12Arrangements for admission or discharge of the working fluid1,202
- F04C 29/04Heating1,014
- F04C 29/0021Systems for the equilibration of forces acting on the pump555
- F04C 29/06Silencing503
- F04C 29/0007Injection of a fluid in the working chamber for sealing, cooling and354
- F04C 29/0092Removing solid or liquid contaminants from the gas under pumping169
Recent patents
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- Electric compressor6 Oct 2026US 12,753,764 B2Kabushiki Kaisha Toyota Jidoshokki
- Arrangement for guiding electrical connections through an opening of a housing and compressor for a refrigerant with an arrangement for guiding electrical connections through an opening of a housing6 Oct 2026US 12,756,258 B2Hanon Systems
- Electric compressor with integrated vapor injection circuit29 Sep 2026US 12,747,729 B2Mahle International GmbH
- Scroll compressor with a sealing ring for a fixed disk check valve8 Oct 2026US 2026/0309151 A1Hitachi-Johnson Controls Air Conditioning, Inc.
- Pump8 Oct 2026US 2026/0309152 A1Gebr. Becker GmbH
- Rotary compressor8 Oct 2026US 2026/0309155 A1Fujitsu General Limited
- Compressor1 Oct 2026US 2026/0298233 A1Samsung Electronics Co., Ltd.
- Scroll compressor1 Oct 2026US 2026/0298234 A1Ishikawa Energy Research Co., Ltd.
Most cited
By later US patents
- Portable medical suction device381US 4,930,997 A1990
- Portable ventilator system278US 7,188,621 B2Pulmonetic Systems, Inc. · 2007
- Compressor unit and separator therefor245US 5,158,585 AHitachi, Ltd. · 1992
- Scroll-type machine with axially compliant mounting226US 4,877,382 ACopeland Corporation · 1989
- Compressor diagnostic system172US 6,615,594 B2Copeland Corporation · 2003