F04D 29/608
Means for removing without depressurizing the cavity
Official title: {means for removing without depressurizing the cavity}
F04D29/608 (Means for removing without depressurizing the cavity) appears on 18 US grants and 16 published applications in this corpus.
Search patents in F04D- Granted patents
- 18
- Published applications
- 16
- Assignees
- 20
- Inventors
- 55
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 3 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 6 |
| 2025 | 4 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid hydrogen pump and methods13 Jan 2026US 12,523,240 B2Eaton Intelligent Power Limited
- Thermal energy storage system18 Nov 2025US 12,474,127 B2EnergyIntel Services Ltd.
- Purge apparatus and purge method30 Sep 2025US 12,429,058 B2Ebara Corporation
- Sealing member and submerged pump system8 Jul 2025US 12,352,272 B2Nikkiso Co., Ltd.
- Liquid hydrogen pump and methods15 Apr 2025US 12,276,287 B2Eaton Intelligent Power Limited
- Buffer gate, pump carrying-in method, and pump pulling-up method14 May 2026US 2026/0132013 A1Ebara Corporation
- Liquid hydrogen pump and methods26 Jun 2025US 2025/0207609 A1Eaton Intelligent Power Limited
- Container, pump system, and maintenance method20 Feb 2025US 2025/0060075 A1Ebara Corporation
- Purge apparatus and purge method31 Oct 2024US 2024/0360832 A1Ebara Corporation
- Integrally-transportable purge container and method of using the integrally-transportable purge container24 Oct 2024US 2024/0353068 A1Ebara Corporation
Most cited
By later US patents
- Purged valve assembly and method of sealing15US 4,080,106 AInternational Telephone and Telegraph Corporation · 1978
- Cartridge pump13US 4,324,532 ATRW Inc. · 1982
- Narrow accessway liquid sewage pump remotely operable multi-part quick connect/disconnect slide coupling13US 5,038,817 AEnvironment One Corporation · 1991
- Double foot valve for cryogenic fluid containing tanks11US 3,963,381 AAir Products and Chemicals, Inc. · 1976
- Method and apparatus for removing a high pressure in-tank pump using a low pressure tube6US 5,865,605 AChicago Bridge & Iron Company · 1999