C02F 11/18
Treatment of sludge: by thermal conditioning
Official title: by thermal conditioning (by pyrolysis C02F11/10)
C02F11/18 (Treatment of sludge: by thermal conditioning) appears on 303 US grants and 310 published applications in this corpus.
Search patents in C02F- Granted patents
- 303
- Published applications
- 310
- Assignees
- 250
- Inventors
- 795
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 0 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 6 | 4 |
| 2002 | 8 | 11 |
| 2003 | 8 | 8 |
| 2004 | 8 | 7 |
| 2005 | 5 | 8 |
| 2006 | 5 | 4 |
| 2007 | 5 | 13 |
| 2008 | 3 | 6 |
| 2009 | 0 | 6 |
| 2010 | 1 | 11 |
| 2011 | 6 | 7 |
| 2012 | 4 | 10 |
| 2013 | 7 | 7 |
| 2014 | 8 | 18 |
| 2015 | 4 | 9 |
| 2016 | 7 | 14 |
| 2017 | 11 | 10 |
| 2018 | 4 | 9 |
| 2019 | 14 | 18 |
| 2020 | 12 | 13 |
| 2021 | 7 | 27 |
| 2022 | 15 | 21 |
| 2023 | 14 | 23 |
| 2024 | 14 | 25 |
| 2025 | 15 | 11 |
| 2026 | 9 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Two-stage co-liquefaction mixing-reaction-filtration-heat recovery integrated apparatus6 Oct 2026US 12,753,102 B2Xi' An Jiaotong University
- Methods for biological processing of hydrocarbon-containing substances and system for realization thereof28 Jul 2026US 12,692,444 B2CarbonadeUSA, Corp.
- Method of elimination of poly- and perfluoroalkyl substances (PFAS) in a wastewater biosolids gasification process using a thermal oxidizer and hydrated lime injection9 Jun 2026US 12,649,885 B2Aries Clean Technologies LLC
- Process for treating a waste material contaminated with perfluoro-and polyfluoroalkyl substances (PFAS)2 Jun 2026US 12,643,808 B2Nulife Greentech Inc.
- Carbon dioxide enhanced hydrothermal liquefaction2 Jun 2026US 12,644,055 B2Battelle Memorial Institute
- Method for the treatment of complex waste24 Sep 2026US 2026/0285732 A1Suez International
- System for dewatering and hygienization of wet waste streams23 Jul 2026US 2026/0209098 A1Carbon Twelve AS
- Systems for aggregating and processing of biogas to biomethane18 Jun 2026US 2026/0166482 A1California Bioenergy, LLC
- Method for preparing artificial peat and fulvic acid from livestock and poultry manure in breeding industry through high-pressure hydrothermal method18 Jun 2026US 2026/0167544 A1China University of Petroleum (East China)
- Method for the treatment of organic waste16 Apr 2026US 2026/0103417 A1Suez International
Most cited
By later US patents
- Methods for treatment of waste streams97US 5,846,425 A1998
- Process to stabilize bioorganic, raw or treated wastewater sludge89US 5,417,861 AN-Viro International Corporation · 1995
- Process and apparatus for pathogen reduction in waste83US 5,013,458 ARDP Company · 1991
- Method for lime stabilization of wastewater treatment plant sludges79US 4,306,978 AWillow Technology, Inc. · 1981
- Process to stabilize wastewater sludge75US 5,275,733 AN-Viro Energy Systems Ltd. · 1994