F25J 2220/64
Separating heavy hydrocarbons
Official title: Separating heavy hydrocarbons, e.g. NGL, LPG, C4+ hydrocarbons or heavy condensates in general
F25J2220/64 (Separating heavy hydrocarbons) appears on 300 US grants and 382 published applications in this corpus.
Search patents in F25J- Granted patents
- 300
- Published applications
- 382
- Assignees
- 140
- Inventors
- 623
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 6 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 0 |
| 2002 | 3 | 2 |
| 2003 | 4 | 2 |
| 2004 | 5 | 10 |
| 2005 | 3 | 9 |
| 2006 | 7 | 13 |
| 2007 | 10 | 9 |
| 2008 | 6 | 14 |
| 2009 | 6 | 16 |
| 2010 | 1 | 25 |
| 2011 | 2 | 13 |
| 2012 | 2 | 17 |
| 2013 | 5 | 8 |
| 2014 | 2 | 13 |
| 2015 | 6 | 17 |
| 2016 | 8 | 16 |
| 2017 | 13 | 37 |
| 2018 | 14 | 23 |
| 2019 | 14 | 17 |
| 2020 | 18 | 27 |
| 2021 | 8 | 15 |
| 2022 | 20 | 27 |
| 2023 | 22 | 17 |
| 2024 | 20 | 18 |
| 2025 | 11 | 12 |
| 2026 | 8 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquefied natural gas production facility on gravity-based structures16 Jun 2026US 12,656,058 B2Publichnoe Aktsionernoe Obshchestvo "NOVATEK"
- Apparatus and systems for liquefaction of natural gas2 Jun 2026US 12,644,643 B2Steelhead Lng (Aslng) Ltd.
- Standalone high-pressure heavies removal unit for LNG processing26 May 2026US 12,638,236 B2ConocoPhillips Company
- Method and arrangement for separating carbon dioxide from a feed stream containing carbon dioxide28 Apr 2026US 12,611,626 B2Linde Aktiengesellschaft
- System, method and apparatus for the regeneration of nitrogen energy within a closed loop cryogenic system7 Apr 2026US 12,595,938 B2
- Systems and methods for efficient heavy hydrocarbons removal27 Aug 2026US 2026/0251389 A1ConocoPhillips Company
- Nitrogen management in an lng plant6 Aug 2026US 2026/0227121 A1ConocoPhillips Company
- Method and system for y-grade upgrader30 Jul 2026US 2026/0218980 A1Energy Transformed, Inc.
- Side draw reflux heavy hydrocarbon removal system and method21 May 2026US 2026/0139898 A1
- Method and installation for the production of a liquefied cryogenic fluid9 Apr 2026US 2026/0098682 A1L'Air Liquide, Société Anonyme pour |'Etude et |'Exploitation des Procédés Georges Claude
Most cited
By later US patents
- 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
- Process for liquefying a natural gas stream containing at least one freezable component123US 5,956,971 AExxon Production Research Company · 1999
- Multi-component refrigeration process for liquefaction of natural gas100US 5,950,453 AExxon Production Research Company · 1999
- Use of a turboexpander cycle in liquefied natural gas process83US 5,755,114 AABB Randall Corporation · 1998