F04D 29/124
With special means for adducting cooling or sealing fluid
Official title: {with special means for adducting cooling or sealing fluid}
F04D29/124 (With special means for adducting cooling or sealing fluid) appears on 102 US grants and 117 published applications in this corpus.
Search patents in F04D- Granted patents
- 102
- Published applications
- 117
- Assignees
- 63
- Inventors
- 253
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 2 |
| 2003 | 1 | 1 |
| 2004 | 3 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 3 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 2 | 5 |
| 2011 | 3 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 4 |
| 2014 | 3 | 9 |
| 2015 | 3 | 9 |
| 2016 | 4 | 6 |
| 2017 | 5 | 10 |
| 2018 | 6 | 7 |
| 2019 | 8 | 10 |
| 2020 | 11 | 7 |
| 2021 | 6 | 7 |
| 2022 | 9 | 6 |
| 2023 | 7 | 2 |
| 2024 | 6 | 8 |
| 2025 | 4 | 10 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compressor29 Sep 2026US 12,747,734 B2Mitsubishi Heavy Industries Compressor Corporation
- Compressor with integrated speed multiplier15 Sep 2026US 12,736,057 B2TURBODEN S. p. A.
- Electric centrifugal compressor8 Sep 2026US 12,729,690 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Sealing gas leakage recovery and sealing gas boosting system and method28 Apr 2026US 12,612,922 B2Nuovo Pignone Tecnologie Srl
- Closed-loop cooling fluid circuit for magnetic bearings of an expander-compressor system24 Mar 2026US 12,584,420 B2Nuovo Pignone Tecnologie Srl
- Compressor13 Aug 2026US 2026/0235136 A1Mitsubishi Heavy Industries Compressor Corporation
- Compressor with integrated speed multiplier6 Aug 2026US 2026/0226904 A1TURBODEN S. p. A.
- Seal system5 Feb 2026US 2026/0036203 A1John Crane UK Limited
- Dry gas seal system5 Feb 2026US 2026/0036207 A1John Crane Inc.
- Propeller shaft hybrid lip and labyrinth seal29 Jan 2026US 2026/0029023 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Dry gas seal contamination prevention system84US 6,345,954 B1Flowserve Management Company · 2002
- Turbo machine with an axial dry gas seal65US 5,412,977 ASulzer-Escher Wyss GmbH · 1995
- Methods of generating and utilizing utility gas46US 8,906,138 B2ExxonMobil Upstream Research Company · 2014
- Pressure balanced turbocharger rotating seal45US 5,890,881 AAlliedSignal Inc. · 1999
- Method and apparatus for removal of oil from utility gas stream45US 9,126,138 B2ExxonMobil Upstream Research Company · 2015