F17C 2221/035
Propane butane
Official title: Propane butane, e.g. LPG, GPL
F17C2221/035 (Propane butane) appears on 834 US grants and 831 published applications in this corpus.
Search patents in F17C- Granted patents
- 834
- Published applications
- 831
- Assignees
- 492
- Inventors
- 1,704
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 4 | 0 |
| 1978 | 14 | 0 |
| 1979 | 4 | 0 |
| 1980 | 8 | 0 |
| 1981 | 3 | 0 |
| 1982 | 10 | 0 |
| 1983 | 12 | 0 |
| 1984 | 8 | 0 |
| 1985 | 8 | 0 |
| 1986 | 7 | 0 |
| 1987 | 15 | 0 |
| 1988 | 4 | 0 |
| 1989 | 9 | 0 |
| 1990 | 16 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 9 | 0 |
| 1994 | 9 | 0 |
| 1995 | 6 | 0 |
| 1996 | 11 | 0 |
| 1997 | 13 | 0 |
| 1998 | 16 | 0 |
| 1999 | 17 | 0 |
| 2000 | 14 | 0 |
| 2001 | 19 | 7 |
| 2002 | 15 | 18 |
| 2003 | 15 | 9 |
| 2004 | 16 | 30 |
| 2005 | 7 | 21 |
| 2006 | 17 | 29 |
| 2007 | 16 | 21 |
| 2008 | 15 | 30 |
| 2009 | 12 | 18 |
| 2010 | 11 | 25 |
| 2011 | 12 | 27 |
| 2012 | 11 | 20 |
| 2013 | 18 | 20 |
| 2014 | 21 | 55 |
| 2015 | 13 | 30 |
| 2016 | 31 | 43 |
| 2017 | 28 | 38 |
| 2018 | 25 | 60 |
| 2019 | 39 | 38 |
| 2020 | 40 | 39 |
| 2021 | 36 | 40 |
| 2022 | 30 | 56 |
| 2023 | 37 | 50 |
| 2024 | 53 | 43 |
| 2025 | 37 | 38 |
| 2026 | 26 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and apparatus for a cryogenic fuel distribution system using a bypass29 Sep 2026US 12,747,706 B2GE Avio S. r. l.
- Refillable propane gas tank22 Sep 2026US 12,742,520 B1Caminotek LLC
- Fluid filling systems and methods18 Aug 2026US 12,709,533 B2Fountain Master, LLC
- System, devices and methods for measuring a fill level in containers18 Aug 2026US 12,710,138 B2Smart Projects LLC
- Method and system for processing gas in a gas storage facility for a gas tanker11 Aug 2026US 12,704,323 B2Gaztransport Et Technigaz
- Ship boil-off gas reliquefaction system8 Oct 2026US 2026/0307762 A1Hanwha Ocean Co., Ltd.
- Propane Manifold Assembly17 Sep 2026US 2026/0276154 A1
- Refueling assemblies for fuel tanks, refillable fuel tanks, and associated methods10 Sep 2026US 2026/0266428 A1Ignik Outdoors, Inc.
- Gas remaining amount management system30 Jul 2026US 2026/0219088 A1Panasonic Intellectual Property Management Co., Ltd.
- Insulation system for stand-alone type b liquefied gas storage tank, design method thereof, and ship including same16 Jul 2026US 2026/0200555 A1Hanwha Ocean Co., Ltd.
Most cited
By later US patents
- System for replenishing energy sources onboard different types of automotive vehicles139US 7,602,143 B22009
- Compressed gas fuel storage system107US 6,257,360 B1The Johns Hopkins University · 2001
- Fabricated pressure vessel89US 4,946,056 AButtes Gas & Oil Co. · 1990
- Pressure storage system and method to operate pressure storage system82US 9,328,745 B2MAGNA STEYR Fahrzeugtechnik AG & Co KG · 2016
- Method for producing gas hydrates utilizing a fluidized bed80US 6,180,843 B2Mobil Oil Corporation · 2001