F04D 29/582
Specially adapted for elastic fluid pumps
Official title: {specially adapted for elastic fluid pumps}
F04D29/582 (Specially adapted for elastic fluid pumps) appears on 1,777 US grants and 2,008 published applications in this corpus.
Search patents in F04D- Granted patents
- 1,777
- Published applications
- 2,008
- Assignees
- 731
- Inventors
- 4,028
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 9 | 0 |
| 1990 | 15 | 0 |
| 1991 | 9 | 0 |
| 1992 | 7 | 0 |
| 1993 | 9 | 0 |
| 1994 | 14 | 0 |
| 1995 | 7 | 0 |
| 1996 | 14 | 0 |
| 1997 | 13 | 0 |
| 1998 | 20 | 0 |
| 1999 | 23 | 0 |
| 2000 | 21 | 0 |
| 2001 | 35 | 6 |
| 2002 | 43 | 49 |
| 2003 | 45 | 47 |
| 2004 | 32 | 38 |
| 2005 | 23 | 54 |
| 2006 | 28 | 48 |
| 2007 | 24 | 55 |
| 2008 | 38 | 62 |
| 2009 | 19 | 52 |
| 2010 | 36 | 47 |
| 2011 | 30 | 51 |
| 2012 | 48 | 80 |
| 2013 | 34 | 69 |
| 2014 | 50 | 63 |
| 2015 | 49 | 99 |
| 2016 | 52 | 132 |
| 2017 | 80 | 150 |
| 2018 | 93 | 151 |
| 2019 | 131 | 120 |
| 2020 | 156 | 107 |
| 2021 | 107 | 107 |
| 2022 | 102 | 102 |
| 2023 | 100 | 101 |
| 2024 | 89 | 79 |
| 2025 | 85 | 89 |
| 2026 | 40 | 50 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Additively manufactured heat exchanger and diffuser pipe coupled to a compressor stage6 Oct 2026US 12,752,921 B2Hamilton Sundstrand Corporation
- Fan casing, blower assembly, and vehicle air conditioning system15 Sep 2026US 12,738,802 B2Luxshare Intelligent Manufacture Technology (Changshu) Co., Ltd
- Tandem seal pump8 Sep 2026US 12,729,692 B2Ceco Environmental IP Inc.
- Cooling of a compressor shaft gas bearing1 Sep 2026US 12,723,592 B2Trane International Inc.
- Throttle valve for coolant circulation system18 Aug 2026US 12,710,056 B2Ingersoll-Rand Industrial U.S., Inc.
- Engine cooling fan motor for vehicle8 Oct 2026US 2026/0312466 A1New Motech Co., Ltd.
- Method for controlling the operating parameters of a turbomolecular vacuum pump17 Sep 2026US 2026/0275993 A1Pfeiffer Vacuum GmbH
- Vacuum pump and stator component10 Sep 2026US 2026/0266298 A1Edwards Japan Limited
- Method for assembling compressor module and compressor module20 Aug 2026US 2026/0243276 A1Mitsubishi Heavy Industries Compressor Corporation
- Centrifugal compressor13 Aug 2026US 2026/0235134 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
Most cited
By later US patents
- Compact low noise efficient blower for CPAP devices351US 7,866,944 B2ResMed Motor Technologies Inc. · 2011
- Thermoelectric heat exchanger227US 6,119,463 AAmerigon Incorporated · 2000
- Thermoelectric heat exchanger196US 6,223,539 B1Amerigon Incorporated · 2001
- Thermoelectric heat exchanger177US 6,606,866 B2Amerigon Incorporated · 2003
- Double-ended blower and volutes therefor139US 6,910,483 B2ResMed Limited · 2005