C10J 3/721
Multistage gasification
Official title: {Multistage gasification, e.g. plural parallel or serial gasification stages}
C10J3/721 (Multistage gasification) appears on 361 US grants and 403 published applications in this corpus.
Search patents in C10J- Granted patents
- 361
- Published applications
- 403
- Assignees
- 240
- Inventors
- 808
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 9 | 0 |
| 1983 | 7 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 0 | 0 |
| 2004 | 2 | 6 |
| 2005 | 2 | 7 |
| 2006 | 1 | 4 |
| 2007 | 2 | 11 |
| 2008 | 1 | 11 |
| 2009 | 2 | 21 |
| 2010 | 7 | 40 |
| 2011 | 11 | 31 |
| 2012 | 13 | 24 |
| 2013 | 23 | 26 |
| 2014 | 19 | 26 |
| 2015 | 31 | 25 |
| 2016 | 25 | 15 |
| 2017 | 11 | 25 |
| 2018 | 20 | 22 |
| 2019 | 19 | 17 |
| 2020 | 13 | 18 |
| 2021 | 14 | 11 |
| 2022 | 10 | 12 |
| 2023 | 14 | 20 |
| 2024 | 5 | 15 |
| 2025 | 13 | 9 |
| 2026 | 7 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and apparatus for a combined tire pyrolyzer/gasifier and biomass gasifier22 Sep 2026US 12,742,126 B2
- Gasification furnace operating method and gasification furnace18 Aug 2026US 12,709,714 B2Ebara Environmental Plant Co., Ltd.
- Processes for producing high biogenic concentration Fischer-Tropsch liquids derived from municipal solid wastes (MSW) feedstocks16 Jun 2026US 12,655,359 B2Fulc Jv LLC
- Process and apparatus for producing renewable fuels5 May 2026US 12,617,677 B1The Boeing Company
- Biochar purification unit28 Apr 2026US 12,612,572 B2Meva Energy AB
- Syngas production from waste materials1 Oct 2026US 2026/0297000 A1SemperCycle ApS
- Gas product manufacturing using vapor and liquid components of a feedstock18 Jun 2026US 2026/0167881 A1InEnTec Inc.
- System and Method for Pyrolysis26 Mar 2026US 2026/0085243 A1Royal Melbourne Institute of Technology
- Gasification26 Mar 2026US 2026/0085250 A1Gasification Consultancy Limited
- Method of producing liquid fuel from carbonaceous feedstock through gasification and recycling of downstream products25 Dec 2025US 2025/0388827 A1ThermoChem Recovery International, Inc.
Most cited
By later US patents
- Electro-mechanical interfaces to mount robotic surgical arms470US 7,762,825 B2Intuitive Surgical Operations, Inc. · 2010
- Apparatus for surgical systems with electro-mechanical interfaces to mount robotic surgical arms276US 8,585,420 B2Intuitive Surgical Operations, Inc. · 2013
- Surgical system with electro-mechanical interfaces to mount robotic surgical arms273US 8,066,524 B2Intuitive Surgical Operations, Inc. · 2011
- Process for coal or biomass fuel gasification by carbon dioxide extracted from a boiler flue gas stream130US 5,937,652 A1999
- Process for the gasification of carbonaceous materials119US 4,322,222 AOccidental Petroleum Corporation · 1982