F02M 21/06
Apparatus for de-liquefying
Official title: Apparatus for de-liquefying, e.g. by heating
F02M21/06 (Apparatus for de-liquefying) appears on 303 US grants and 331 published applications in this corpus.
Search patents in F02M- Granted patents
- 303
- Published applications
- 331
- Assignees
- 164
- Inventors
- 677
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 9 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 8 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 6 |
| 2003 | 11 | 9 |
| 2004 | 5 | 11 |
| 2005 | 8 | 8 |
| 2006 | 11 | 14 |
| 2007 | 8 | 9 |
| 2008 | 9 | 10 |
| 2009 | 7 | 20 |
| 2010 | 11 | 6 |
| 2011 | 6 | 17 |
| 2012 | 7 | 12 |
| 2013 | 8 | 10 |
| 2014 | 11 | 31 |
| 2015 | 10 | 24 |
| 2016 | 15 | 23 |
| 2017 | 18 | 10 |
| 2018 | 17 | 21 |
| 2019 | 10 | 17 |
| 2020 | 14 | 8 |
| 2021 | 12 | 6 |
| 2022 | 6 | 8 |
| 2023 | 7 | 10 |
| 2024 | 7 | 15 |
| 2025 | 11 | 14 |
| 2026 | 6 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for supplying gaseous ammonia to serially-connected ammonia cracking units1 Sep 2026US 12,723,559 B2First Ammonia Motors, Inc.
- Hydrogen supply device11 Aug 2026US 12,706,319 B2Toyota Jidosha Kabushiki Kaisha
- Hydrogen generation device for optimising combustion and reducing the emission of pollutants in diesel cycle engines and method of use28 Apr 2026US 12,612,886 B2
- Gaseous fuel supply system for a clean combustion engine of a vehicle21 Apr 2026US 12,607,159 B2Volvo Truck Corporation
- System for supplying gas to at least one gas-consuming appliance equipping a ship24 Feb 2026US 12,560,136 B2Gaztransport Et Technigaz
- Systems and methods for stationary power generation using hydrogen and ammonia co-fuels17 Sep 2026US 2026/0275942 A1First Ammonia Motors, Inc.
- Ammonia gas supply system and internal combustion engine system13 Aug 2026US 2026/0235093 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Vehicle6 Aug 2026US 2026/0226874 A1Toyota Jidosha Kabushiki Kaisha
- Flexible fuel engine enabled by hydrogen16 Jul 2026US 2026/0201857 A1Blaze Energy Technologies Corporation
- Heating apparatus for a fluid conveying line28 May 2026US 2026/0146735 A1
Most cited
By later US patents
- LNG delivery system for gas powered vehicles117US 5,127,230 AMinnesota Valley Engineering, Inc. · 1992
- Internal combustion engine dual fuel system73US 4,335,697 A1982
- Internal combustion engine with cooling of intake air using refrigeration of liquefied fuel gas72US 5,375,580 AAir Products and Chemicals, Inc. · 1994
- Flow control system71US 5,150,690 AOrtech Corporation · 1992
- Supplemental system for fuel agency65US 4,499,885 A1985