F04B 37/08
By condensing or freezing
Official title: by condensing or freezing, e.g. cryogenic pumps
F04B37/08 (By condensing or freezing) appears on 379 US grants and 293 published applications in this corpus.
Search patents in F04B- Granted patents
- 379
- Published applications
- 293
- Assignees
- 143
- Inventors
- 554
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 10 | 0 |
| 1983 | 2 | 0 |
| 1984 | 9 | 0 |
| 1985 | 9 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 11 | 0 |
| 1989 | 10 | 0 |
| 1990 | 10 | 0 |
| 1991 | 5 | 0 |
| 1992 | 9 | 0 |
| 1993 | 10 | 0 |
| 1994 | 13 | 0 |
| 1995 | 9 | 0 |
| 1996 | 8 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 17 | 0 |
| 2000 | 9 | 0 |
| 2001 | 12 | 1 |
| 2002 | 8 | 4 |
| 2003 | 1 | 5 |
| 2004 | 2 | 8 |
| 2005 | 4 | 11 |
| 2006 | 5 | 5 |
| 2007 | 5 | 9 |
| 2008 | 7 | 4 |
| 2009 | 3 | 9 |
| 2010 | 1 | 8 |
| 2011 | 2 | 10 |
| 2012 | 5 | 16 |
| 2013 | 3 | 21 |
| 2014 | 6 | 17 |
| 2015 | 11 | 12 |
| 2016 | 8 | 18 |
| 2017 | 16 | 23 |
| 2018 | 26 | 4 |
| 2019 | 11 | 11 |
| 2020 | 8 | 12 |
| 2021 | 10 | 13 |
| 2022 | 8 | 15 |
| 2023 | 13 | 10 |
| 2024 | 16 | 16 |
| 2025 | 8 | 18 |
| 2026 | 6 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High temperature superconducting cable based power delivery system in pulsed power drilling11 Aug 2026US 12,704,024 B2Halliburton Energy Services.Inc.
- Cryopump, cryopump system, and cryopump regeneration method28 Jul 2026US 12,692,851 B2Sumitomo Heavy Industries, Ltd.
- Cryopump14 Jul 2026US 12,680,538 B2Sumitomo Heavy Industries, Ltd.
- Installation for pumping cryogenic fluid and filling station comprising such an installation2 Jun 2026US 12,644,442 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Cryopump and cryopump regeneration method19 May 2026US 12,631,168 B2Sumitomo Heavy Industries, Ltd.
- Cryopump8 Oct 2026US 2026/0309139 A1Sumitomo Heavy Industries, Ltd.
- Cryopump8 Oct 2026US 2026/0309140 A1Sumitomo Heavy Industries, Ltd.
- Thermal pump with heat-exchanging displacer30 Jul 2026US 2026/0218694 A1KLA Corporation
- Cryogenic canned pump and thermal insulation structure thereof30 Jul 2026US 2026/0218701 A1Shanghai Institute of Space Propulsion
- Pumping apparatus11 Jun 2026US 2026/0160238 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- High vacuum processing system having improved recycle draw-down capability under high humidity ambient atmospheric conditions179US 4,361,418 ARisdon Corporation · 1982
- Shield to prevent cryopump charcoal array from shedding during cryo-regeneration135US 6,122,921 AAPPLIED Materials.Inc. · 2000
- Electronically controlled cryopump and network interface101US 5,265,431 AHelix Technology Corporation · 1993
- Evacuating unit with reduced diameter exhaust duct92US 6,474,949 B1Ebara Corporation · 2002
- Electronically controlled cryopump and network interface90US 5,176,004 AHelix Technology Corporation · 1993