F04D 29/584
Cooling or heating the machine
Official title: {cooling or heating the machine (F04D29/5846, F04D29/5853 take precedence)}
F04D29/584 (Cooling or heating the machine) appears on 661 US grants and 746 published applications in this corpus.
Search patents in F04D- Granted patents
- 661
- Published applications
- 746
- Assignees
- 286
- Inventors
- 1,466
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 4 |
| 2002 | 10 | 12 |
| 2003 | 8 | 12 |
| 2004 | 7 | 7 |
| 2005 | 6 | 10 |
| 2006 | 6 | 9 |
| 2007 | 6 | 17 |
| 2008 | 9 | 11 |
| 2009 | 5 | 17 |
| 2010 | 8 | 19 |
| 2011 | 15 | 25 |
| 2012 | 15 | 39 |
| 2013 | 18 | 26 |
| 2014 | 30 | 29 |
| 2015 | 24 | 41 |
| 2016 | 26 | 52 |
| 2017 | 34 | 51 |
| 2018 | 39 | 57 |
| 2019 | 50 | 52 |
| 2020 | 60 | 41 |
| 2021 | 49 | 45 |
| 2022 | 44 | 41 |
| 2023 | 42 | 38 |
| 2024 | 39 | 37 |
| 2025 | 31 | 33 |
| 2026 | 22 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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.
- Reverse direction bearing cooling flow path for a cabin air compressor18 Aug 2026US 12,710,057 B2Hamilton Sundstrand Corporation
- Turbo compressor and turbo chiller comprising same11 Aug 2026US 12,704,133 B2Mitsubishi Heavy Industries Thermal Systems, Ltd.
- Cooling circuits for compressors and compressors including same28 Jul 2026US 12,692,877 B2Copeland Corporation
- 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
- Centrifugal compressor13 Aug 2026US 2026/0235134 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Pump system with electrically operated cooling device23 Jul 2026US 2026/0210364 A1Pfeiffer Vacuum Technology AG
- Cooling circuits for compressors and compressors including same9 Jul 2026US 2026/0194070 A1Copeland Corporation
Most cited
By later US patents
- Compact low noise efficient blower for CPAP devices351US 7,866,944 B2ResMed Motor Technologies Inc. · 2011
- Compressor rotor cooling system for a gas turbine125US 5,685,158 AGeneral Electric Company · 1997
- Shaped cooling hole for an airfoil119US 6,368,060 B1General Electric Company · 2002
- Active clearance control system for a turbomachine92US 4,329,114 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1982
- Cooling system for a gas turbine engine compressor89US 5,297,386 ASociete Nationale d'Etude et de Construction de Moteurs D'Aviation "S.N.E.C.M A." · 1994