F25J 1/0231
For the working-up of the hydrocarbon feed
Official title: {for the working-up of the hydrocarbon feed, e.g. reinjection of heavier hydrocarbons into the liquefied gas}
F25J1/0231 (For the working-up of the hydrocarbon feed) appears on 54 US grants and 59 published applications in this corpus.
Search patents in F25J- Granted patents
- 54
- Published applications
- 59
- Assignees
- 36
- Inventors
- 140
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 2 | 4 |
| 2008 | 2 | 1 |
| 2009 | 0 | 3 |
| 2010 | 1 | 4 |
| 2011 | 1 | 4 |
| 2012 | 0 | 2 |
| 2013 | 1 | 3 |
| 2014 | 0 | 3 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 3 | 7 |
| 2018 | 3 | 4 |
| 2019 | 3 | 3 |
| 2020 | 6 | 2 |
| 2021 | 0 | 3 |
| 2022 | 3 | 2 |
| 2023 | 2 | 3 |
| 2024 | 2 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system for producing a liquefied natural gas product18 Aug 2026US 12,710,225 B2Linde Aktiengesellschaft
- Method and system for production optimization4 Nov 2025US 12,460,861 B2Shell USA, Inc.
- Mixed refrigerant system and method1 Oct 2024US 12,104,849 B2Chart Energy & Chemicals, Inc.
- Pretreatment, pre-cooling, and condensate recovery of natural gas by high pressure compression and expansion30 Jul 2024US 12,050,054 B2ExxonMobil Technology and Engineering Company
- Pretreatment and pre-cooling of natural gas by high pressure compression and expansion14 Nov 2023US 11,815,308 B2ExxonMobil Technology and Engineering Company
- Side draw reflux heavy hydrocarbon removal system and method21 May 2026US 2026/0139898 A1
- Gas liquefaction system with multiple refrigerant cycles30 Oct 2025US 2025/0334330 A1Nuovo Pignone Tecnologie Srl
- Integrated liquid recovery process in lng processes14 Nov 2024US 2024/0377128 A1ConocoPhillips Company
- Method for extracting ethane from an initial natural gas stream and corresponding plant21 Dec 2023US 2023/0408191 A1Technip Energies France
- Method and system for producing a liquefied natural gas product14 Sep 2023US 2023/0288137 A1Linde Aktiengesellschaft
Most cited
By later US patents
- Process for liquefaction of natural gas137US 6,023,942 AExxon Production Research Company · 2000
- Enhanced NGL recovery utilizing refrigeration and reflux from LNG plants112US 6,401,486 B12002
- Multi-component refrigeration process for liquefaction of natural gas100US 5,950,453 AExxon Production Research Company · 1999
- Integrated high pressure NGL recovery in the production of liquefied natural gas94US 6,662,589 B1Air Products and Chemicals, Inc. · 2003
- Liquefaction of natural gas using process-loaded expanders73US 4,970,867 AAir Products and Chemicals, Inc. · 1990