F25J 1/0243
Start-up or control of the process
Official title: {Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used}
F25J1/0243 (Start-up or control of the process) appears on 1,133 US grants and 1,446 published applications in this corpus.
Search patents in F25J- Granted patents
- 1,133
- Published applications
- 1,446
- Assignees
- 443
- Inventors
- 2,243
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 14 | 0 |
| 1978 | 7 | 0 |
| 1979 | 9 | 0 |
| 1980 | 10 | 0 |
| 1981 | 8 | 0 |
| 1982 | 9 | 0 |
| 1983 | 7 | 0 |
| 1984 | 7 | 0 |
| 1985 | 11 | 0 |
| 1986 | 11 | 0 |
| 1987 | 12 | 0 |
| 1988 | 10 | 0 |
| 1989 | 10 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 10 | 0 |
| 1993 | 9 | 0 |
| 1994 | 9 | 0 |
| 1995 | 7 | 0 |
| 1996 | 11 | 0 |
| 1997 | 19 | 0 |
| 1998 | 14 | 0 |
| 1999 | 11 | 0 |
| 2000 | 23 | 0 |
| 2001 | 29 | 5 |
| 2002 | 27 | 4 |
| 2003 | 23 | 17 |
| 2004 | 18 | 22 |
| 2005 | 12 | 26 |
| 2006 | 17 | 30 |
| 2007 | 18 | 28 |
| 2008 | 13 | 33 |
| 2009 | 26 | 55 |
| 2010 | 8 | 69 |
| 2011 | 13 | 49 |
| 2012 | 12 | 47 |
| 2013 | 19 | 53 |
| 2014 | 24 | 61 |
| 2015 | 16 | 61 |
| 2016 | 27 | 74 |
| 2017 | 51 | 77 |
| 2018 | 49 | 102 |
| 2019 | 54 | 95 |
| 2020 | 78 | 74 |
| 2021 | 48 | 77 |
| 2022 | 68 | 94 |
| 2023 | 54 | 83 |
| 2024 | 74 | 91 |
| 2025 | 49 | 66 |
| 2026 | 50 | 53 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Single mixed refrigerant LNG production process22 Sep 2026US 12,742,588 B2Honeywell Lng LLC
- Liquefied hydrogen production device22 Sep 2026US 12,742,590 B2Jgc Corporation
- Hydrogen liquefaction system and hydrogen liquefaction method15 Sep 2026US 12,736,279 B2H2CREO Corp.
- System and method for co-production of a densified liquid oxygen product and densified liquid methane product15 Sep 2026US 12,736,280 B2Praxair Technology, Inc.
- Method for generating refrigeration for a carbon monoxide cold box15 Sep 2026US 12,736,281 B2Praxair Technology, Inc.
- Method for supplying gaseous nitrogen and liquefying nitrogen8 Oct 2026US 2026/0309410 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Cycle gas refrigerator and liquefaction facility1 Oct 2026US 2026/0298529 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- A method of and apparatus for reliquefying of boil-off gas stream obtained from liquefied gas in a gas storage of a floating storage unit24 Sep 2026US 2026/0287251 A1WäRtsilä Gas Solutions Norway AS
- Carbon dioxide reliquefaction system and carbon dioxide reliquefaction method which use closed cycle17 Sep 2026US 2026/0276299 A1Hanwha Ocean Co., Ltd.
- Cryogenic cooling system3 Sep 2026US 2026/0257609 A1
Most cited
By later US patents
- Process for liquefaction of natural gas137US 6,023,942 AExxon Production Research Company · 2000
- Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator136US 5,979,440 ASeQual Technologies, Inc. · 1999
- Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator133US 6,698,423 B1SeQual Technologies, Inc. · 2004
- Integrated process for converting hydrocarbon gas to liquids124US 6,248,794 B1Atlantic Richfield Company · 2001
- Process and system for liquefying natural gas124US 6,324,867 B1ExxonMobil Oil Corporation · 2001