F04B 15/06
Pumps adapted to handle specific fluids: for liquids near their boiling point
Official title: for liquids near their boiling point, e.g. under subnormal pressure
F04B15/06 (Pumps adapted to handle specific fluids: for liquids near their boiling point) appears on 272 US grants and 302 published applications in this corpus.
Search patents in F04B- Granted patents
- 272
- Published applications
- 302
- Assignees
- 172
- Inventors
- 580
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 9 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 10 | 0 |
| 1998 | 7 | 0 |
| 1999 | 7 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 0 |
| 2002 | 3 | 4 |
| 2003 | 6 | 3 |
| 2004 | 3 | 12 |
| 2005 | 2 | 6 |
| 2006 | 5 | 5 |
| 2007 | 4 | 4 |
| 2008 | 1 | 8 |
| 2009 | 5 | 10 |
| 2010 | 2 | 6 |
| 2011 | 2 | 2 |
| 2012 | 1 | 5 |
| 2013 | 3 | 6 |
| 2014 | 6 | 12 |
| 2015 | 3 | 14 |
| 2016 | 7 | 24 |
| 2017 | 11 | 23 |
| 2018 | 21 | 25 |
| 2019 | 25 | 14 |
| 2020 | 13 | 18 |
| 2021 | 9 | 11 |
| 2022 | 3 | 13 |
| 2023 | 9 | 14 |
| 2024 | 8 | 21 |
| 2025 | 14 | 23 |
| 2026 | 16 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid compression apparatus and filling station8 Sep 2026US 12,729,104 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Cryogenic liquid reciprocating pump with a cylinder structure for cooling assistance1 Sep 2026US 12,723,577 B2Korea Institute of Machinery & Materials
- Jumper lines with pumps21 Jul 2026US 12,687,162 B2Tpe Midstream LLC
- Pneumatic energy generation device14 Jul 2026US 12,678,936 B2Industry-Academic Cooperation Foundation, Yonsei University
- Piston compressor and method of operating the same23 Jun 2026US 12,662,995 B2Burckhardt Compression AG
- Pump for cryogenic liquid1 Oct 2026US 2026/0298224 A1
- Fuel compressor20 Aug 2026US 2026/0243241 A1Phinia Delphi Luxembourg Sarl
- Compressor unit6 Aug 2026US 2026/0226891 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Cryogenic pump30 Jul 2026US 2026/0218692 A1Chart Energy & Chemicals, Inc.
- Compressor unit30 Jul 2026US 2026/0218700 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
Most cited
By later US patents
- Liquid nitrogen pump82US 4,494,415 AHydra-Rig, Inc. · 1985
- Cryogenic reciprocating pump79US 4,396,362 AUnion Carbide Corporation · 1983
- Electric diaphragm pump with valve holding structure73US 4,832,582 AEaton Corporation · 1989
- Apparatus and method for supercritical fluid extraction or supercritical fluid chromatography73US 5,601,707 AIsco, Inc. · 1997
- Cryogenic fluid pump system and method of pumping cryogenic fluid67US 5,411,374 AProcess Systems International, Inc. · 1995