F25J 1/0087
Propane
Official title: {Propane; Propylene}
F25J1/0087 (Propane) appears on 124 US grants and 172 published applications in this corpus.
Search patents in F25J- Granted patents
- 124
- Published applications
- 172
- Assignees
- 68
- Inventors
- 347
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 0 |
| 2003 | 3 | 1 |
| 2004 | 3 | 4 |
| 2005 | 2 | 3 |
| 2006 | 2 | 5 |
| 2007 | 4 | 3 |
| 2008 | 1 | 10 |
| 2009 | 2 | 9 |
| 2010 | 0 | 9 |
| 2011 | 2 | 3 |
| 2012 | 0 | 5 |
| 2013 | 3 | 4 |
| 2014 | 3 | 3 |
| 2015 | 1 | 7 |
| 2016 | 2 | 9 |
| 2017 | 6 | 12 |
| 2018 | 2 | 13 |
| 2019 | 10 | 13 |
| 2020 | 9 | 11 |
| 2021 | 6 | 3 |
| 2022 | 6 | 17 |
| 2023 | 6 | 7 |
| 2024 | 12 | 7 |
| 2025 | 5 | 7 |
| 2026 | 1 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquified natural gas processing cold box with internal refrigerant storage3 Feb 2026US 12,540,773 B2
- Method and system for production optimization4 Nov 2025US 12,460,861 B2Shell USA, Inc.
- Systems and methods for removing nitrogen during liquefaction of natural gas28 Oct 2025US 12,455,114 B2ConocoPhillips Company
- Cooling device23 Sep 2025US 12,422,186 B2Kobe Steel, Ltd.
- Method and system for determining operating conditions of liquefied natural gas plant18 Mar 2025US 12,253,306 B2Chiyoda Corporation
- Cascade refrigeration natural gas liquefaction system and process27 Aug 2026US 2026/0251385 A1Hangzhou Zhongtai Cryogenic Technology Corporation
- Nitrogen management in an lng plant6 Aug 2026US 2026/0227121 A1ConocoPhillips Company
- System and method for precooling in hydrogen or helium liquefaction processing9 Jul 2026US 2026/0194293 A1Air Water Gas Solutions, Inc.
- Systems and methods for aligning sequences to personalized references7 May 2026US 2026/0126245 A1Seven Bridges Genomics Inc.
- Liquified natural gas processing cold box with internal refrigerant storage30 Apr 2026US 2026/0118052 A1
Most cited
By later US patents
- Process for liquefaction of natural gas137US 6,023,942 AExxon Production Research Company · 2000
- Process and system for liquefying natural gas124US 6,324,867 B1ExxonMobil Oil Corporation · 2001
- Enhanced NGL recovery utilizing refrigeration and reflux from LNG plants112US 6,401,486 B12002
- Combined air separation natural gas liquefaction plant104US 7,143,606 B2L'Air Liquide-Societe Anonyme a'Directoire et Conseil de Surveillance pour l'Etide et l'Exploitation des Procedes Georges Claude · 2006
- Multi-component refrigeration process for liquefaction of natural gas100US 5,950,453 AExxon Production Research Company · 1999