F17C 2221/033
Methane
Official title: Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
F17C2221/033 (Methane) appears on 2,077 US grants and 2,394 published applications in this corpus.
Search patents in F17C- Granted patents
- 2,077
- Published applications
- 2,394
- Assignees
- 993
- Inventors
- 4,052
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 18 | 0 |
| 1978 | 24 | 0 |
| 1979 | 13 | 0 |
| 1980 | 15 | 0 |
| 1981 | 7 | 0 |
| 1982 | 15 | 0 |
| 1983 | 15 | 0 |
| 1984 | 9 | 0 |
| 1985 | 10 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 9 | 0 |
| 1991 | 6 | 0 |
| 1992 | 13 | 0 |
| 1993 | 17 | 0 |
| 1994 | 21 | 0 |
| 1995 | 28 | 0 |
| 1996 | 31 | 0 |
| 1997 | 26 | 0 |
| 1998 | 28 | 0 |
| 1999 | 20 | 0 |
| 2000 | 31 | 0 |
| 2001 | 22 | 9 |
| 2002 | 40 | 24 |
| 2003 | 34 | 31 |
| 2004 | 26 | 52 |
| 2005 | 31 | 46 |
| 2006 | 35 | 65 |
| 2007 | 39 | 77 |
| 2008 | 28 | 79 |
| 2009 | 33 | 73 |
| 2010 | 29 | 77 |
| 2011 | 36 | 60 |
| 2012 | 38 | 59 |
| 2013 | 45 | 80 |
| 2014 | 58 | 154 |
| 2015 | 59 | 147 |
| 2016 | 80 | 136 |
| 2017 | 101 | 132 |
| 2018 | 111 | 164 |
| 2019 | 120 | 123 |
| 2020 | 124 | 115 |
| 2021 | 107 | 115 |
| 2022 | 104 | 118 |
| 2023 | 92 | 155 |
| 2024 | 108 | 147 |
| 2025 | 108 | 105 |
| 2026 | 74 | 51 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vented methane gas mitigation system with failure detection6 Oct 2026US 12,753,731 B1Caterpillar Inc.
- Power-saving liquefied-gas-fuel ship and method for processing boil-off gas for liquefied-gas-fuel ship6 Oct 2026US 12,753,884 B2Hanwha Ocean Co., Ltd.
- Methods and apparatus for a cryogenic fuel distribution system using a bypass29 Sep 2026US 12,747,706 B2GE Avio S. r. l.
- Pressure vessel29 Sep 2026US 12,747,829 B2Toyota Jidosha Kabushiki Kaisha
- Refrigerant charging system for reliquefaction system for ship15 Sep 2026US 12,736,185 B2Hanwha Ocean Co., Ltd.
- Securing Element, Pressure Vessel System and Motor Vehicle8 Oct 2026US 2026/0309283 A1Bayerische Motoren Werke Aktiengesellschaft
- Methods and systems for efficient pressurized liquefied natural gas (plng) production, delivery, and use across mobile and stationary applications8 Oct 2026US 2026/0309409 A1Cryosys, LLC
- System for cooling a data center using evaporation heat of lng liquid gas8 Oct 2026US 2026/0313841 A1
- Precast, prestressed concrete cryogenic tanks - sliding base insulation system and method for full and double containment systems24 Sep 2026US 2026/0287118 A1Preload Cryogenics, LLC
- Process for storing and exploiting a first gas and a second gas denser than the first gas in an aquifer or depleted reservoir27 Aug 2026US 2026/0251265 A1Storengy
Most cited
By later US patents
- Combined power cycle with liquefied natural gas (LNG) and synthesis or fuel gas140US 5,295,350 ATexaco Inc. · 1994
- Improved liquefied natural gas fueled combined cycle power plant140US 5,457,951 ACabot Corporation · 1995
- System for replenishing energy sources onboard different types of automotive vehicles139US 7,602,143 B22009
- Process for liquefaction of natural gas137US 6,023,942 AExxon Production Research Company · 2000
- Variable-volume storage and dispensing apparatus for compressed natural gas129US 5,454,408 AThermo Power Corporation · 1995