F04C 29/0042
Driving elements, brakes, couplings, transmissions specially adapted for pumps
Official title: {Driving elements, brakes, couplings, transmissions specially adapted for pumps (brakes, couplings, transmissions per se F16, B60)}
F04C29/0042 (Driving elements, brakes, couplings, transmissions specially adapted for pumps) appears on 1,315 US grants and 1,407 published applications in this corpus.
Search patents in F04C- Granted patents
- 1,315
- Published applications
- 1,407
- Assignees
- 439
- Inventors
- 2,603
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 14 | 0 |
| 1990 | 14 | 0 |
| 1991 | 12 | 0 |
| 1992 | 16 | 0 |
| 1993 | 20 | 0 |
| 1994 | 21 | 0 |
| 1995 | 17 | 0 |
| 1996 | 20 | 0 |
| 1997 | 8 | 0 |
| 1998 | 28 | 0 |
| 1999 | 14 | 0 |
| 2000 | 22 | 0 |
| 2001 | 18 | 9 |
| 2002 | 22 | 32 |
| 2003 | 25 | 30 |
| 2004 | 22 | 47 |
| 2005 | 17 | 42 |
| 2006 | 30 | 42 |
| 2007 | 31 | 33 |
| 2008 | 22 | 36 |
| 2009 | 14 | 28 |
| 2010 | 20 | 36 |
| 2011 | 19 | 38 |
| 2012 | 30 | 41 |
| 2013 | 23 | 48 |
| 2014 | 42 | 55 |
| 2015 | 29 | 86 |
| 2016 | 50 | 107 |
| 2017 | 70 | 119 |
| 2018 | 78 | 92 |
| 2019 | 99 | 96 |
| 2020 | 76 | 73 |
| 2021 | 83 | 66 |
| 2022 | 60 | 52 |
| 2023 | 54 | 50 |
| 2024 | 69 | 49 |
| 2025 | 57 | 48 |
| 2026 | 21 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Supercharger22 Sep 2026US 12,742,412 B2Eaton Intelligent Power Limited
- Vortex compressor8 Sep 2026US 12,729,684 B2Robert Bosch GmbH
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- Scroll compressors including ring-shaped counterweight assemblies1 Sep 2026US 12,723,587 B2Copeland Corporation
- Screw pump and its components4 Aug 2026US 12,698,769 B2Illinois Tool Works Inc.
- Compressor and method of controlling compressor1 Oct 2026US 2026/0298239 A1Hitachi Industrial Equipment Systems Co., Ltd.
- Scroll vacuum pump and scroll vacuum pump system1 Oct 2026US 2026/0298241 A1Pfeiffer Vacuum Technology AG
- Motorized device comprising a member with eccentric movement1 Oct 2026US 2026/0298242 A1Sonceboz Motion Boncourt SA
- Displacement machine according to the spiral principle3 Sep 2026US 2026/0258802 A1
- Co-rotating scroll compressor27 Aug 2026US 2026/0251142 A1Kabushiki Kaisha Toyota Jioshokki
Most cited
By later US patents
- Portable medical suction device381US 4,930,997 A1990
- Compressor diagnostic system172US 6,615,594 B2Copeland Corporation · 2003
- Method and system for diagnosing a cooling system144US 6,758,051 B2Copeland Corporation · 2004
- Two stage screw type vacuum pump with motor in-between the stages140US 5,846,062 AEbara Corporation · 1998
- Compressor diagnostic system137US 6,758,050 B2Copeland Corporation · 2004