F23G 2201/00
Pretreatment
F23G2201/00 (Pretreatment) appears on 827 US grants and 731 published applications in this corpus.
Search patents in F23G- Granted patents
- 827
- Published applications
- 731
- Assignees
- 590
- Inventors
- 1,812
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 10 | 0 |
| 1991 | 13 | 0 |
| 1992 | 9 | 0 |
| 1993 | 17 | 0 |
| 1994 | 16 | 0 |
| 1995 | 20 | 0 |
| 1996 | 23 | 0 |
| 1997 | 25 | 0 |
| 1998 | 36 | 0 |
| 1999 | 29 | 0 |
| 2000 | 37 | 0 |
| 2001 | 39 | 6 |
| 2002 | 28 | 33 |
| 2003 | 23 | 25 |
| 2004 | 23 | 27 |
| 2005 | 18 | 26 |
| 2006 | 16 | 19 |
| 2007 | 13 | 28 |
| 2008 | 13 | 28 |
| 2009 | 6 | 37 |
| 2010 | 20 | 39 |
| 2011 | 18 | 30 |
| 2012 | 16 | 48 |
| 2013 | 29 | 42 |
| 2014 | 21 | 42 |
| 2015 | 35 | 39 |
| 2016 | 21 | 34 |
| 2017 | 25 | 18 |
| 2018 | 26 | 17 |
| 2019 | 24 | 20 |
| 2020 | 15 | 23 |
| 2021 | 23 | 35 |
| 2022 | 17 | 39 |
| 2023 | 20 | 27 |
| 2024 | 21 | 22 |
| 2025 | 18 | 19 |
| 2026 | 11 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F23G 2201/30PyrolysingIndexing code343
- F23G 2201/40GasificationIndexing code194
- F23G 2201/70BlendingIndexing code146
- F23G 2201/80ShreddingIndexing code129
- F23G 2201/10Drying by heatIndexing code111
- F23G 2201/60SeparatingIndexing code97
- F23G 2201/50DevolatilisingIndexing code72
- F23G 2201/20Dewatering by mechanical meansIndexing code36
All 9 subgroupsShow fewer
Recent patents
- Pyrolysis of waste flare gas for power generation22 Sep 2026US 12,742,547 B2Saudi Arabian Oil Company
- Gasification furnace operating method and gasification furnace18 Aug 2026US 12,709,714 B2Ebara Environmental Plant Co., Ltd.
- Char collector18 Aug 2026US 12,710,174 B2Scanship AS
- Biomass pyrolysis integrated with bio-reduction of metal ores, hydrogen production, and/or activated-carbon production9 Jun 2026US 12,649,959 B2Carbon Technology Holdings, LLC
- Use of a hydraulic binder containing calcium aluminate for the production of a construction material12 May 2026US 12,623,963 B2ARDEX Group GmbH
- Plasma energization equipment20 Aug 2026US 2026/0243421 A1
- Gas product manufacturing using vapor and liquid components of a feedstock18 Jun 2026US 2026/0167881 A1InEnTec Inc.
- Synergetic system and method for waste treatment11 Jun 2026US 2026/0158442 A1Dürr Systems AG
- Baler boiler apparatus and method4 Jun 2026US 2026/0153050 A1
- Compact domestic waste pyrolysis apparatus with integrated multi-chamber secondary combustion chamber21 May 2026US 2026/0139831 A1Kainos Renew Inc.
Most cited
By later US patents
- Method for the removal of mercury and nitrogen oxides from combustion flue gas121US 6,375,909 B1Infilco Degremont Inc. · 2002
- Pressurized wet combustion at increased temperature108US 5,050,375 ADipac Associates · 1991
- Multiple plasma generator hazardous waste processing system101US 6,817,388 B2RCL Plasma, Inc. · 2004
- Multifuel bubbling bed fluidized bed combustor system92US 4,823,712 AWormser Engineering, Inc. · 1989
- Methods and apparatus for treating waste88US 6,630,113 B1Integrated Environmental Technologies, LLC · 2003