C02F 11/008
Sludge treatment by fixation or solidification
Official title: {Sludge treatment by fixation or solidification}
C02F11/008 (Sludge treatment by fixation or solidification) appears on 235 US grants and 115 published applications in this corpus.
Search patents in C02F- Granted patents
- 235
- Published applications
- 115
- Assignees
- 168
- Inventors
- 488
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 8 | 0 |
| 1978 | 5 | 0 |
| 1979 | 6 | 0 |
| 1980 | 8 | 0 |
| 1981 | 10 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 8 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 8 | 0 |
| 1992 | 8 | 0 |
| 1993 | 10 | 0 |
| 1994 | 6 | 0 |
| 1995 | 9 | 0 |
| 1996 | 8 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 7 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 1 |
| 2003 | 3 | 2 |
| 2004 | 2 | 2 |
| 2005 | 1 | 4 |
| 2006 | 0 | 5 |
| 2007 | 1 | 5 |
| 2008 | 3 | 3 |
| 2009 | 2 | 3 |
| 2010 | 3 | 6 |
| 2011 | 4 | 5 |
| 2012 | 6 | 6 |
| 2013 | 2 | 2 |
| 2014 | 1 | 7 |
| 2015 | 5 | 2 |
| 2016 | 2 | 8 |
| 2017 | 5 | 6 |
| 2018 | 9 | 7 |
| 2019 | 2 | 5 |
| 2020 | 4 | 3 |
| 2021 | 7 | 8 |
| 2022 | 2 | 7 |
| 2023 | 6 | 6 |
| 2024 | 4 | 6 |
| 2025 | 3 | 3 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Drying composition to facilitate the transportation of salty sludge17 Mar 2026US 12,577,139 B2Aprotek
- Pelletized compositions for liquid solidification and moisture retention and methods of making and using the same10 Mar 2026US 12,569,827 B2
- Device and method for large-scale flow solidification treatment of dredged sediment in pipeline without yard11 Nov 2025US 12,466,754 B2Anhui Jianzhu University
- System and method for packaging an absorbent for solidification of liquid medical waste21 Oct 2025US 12,447,367 B1Stewart Superabsorbents, LLC
- Wastewater treatment system and method for producing sludge for cement manufacturing16 Sep 2025US 12,415,753 B2Alden Group Environmental Solutions, LLC
- Methods of environment remediation using a pelletized composition for liquid solidification and moisture retention16 Jul 2026US 2026/0199872 A1
- Optimization method and device based on integration of flocculation, vacuum and solidified sludge11 Jun 2026US 2026/0159420 A1Huzhou Vocational & Technical College
- Liquid suspensions for use as drying agents1 Jan 2026US 2026/0001048 A1
- Composition comprising dual chem-heat treated brine sludge waste for flexible and moldable material and a process for the preparation thereof18 Dec 2025US 2025/0385018 A1Council of Scientific and Industrial Research
- Device for in-situ sludge solidification and comprehensive solidification method13 Nov 2025US 2025/0346516 A1Zhejiang University
Most cited
By later US patents
- Process for containment of liquids as solids or semisolids152US 4,460,292 AAgritec, Inc. · 1984
- Process for the storage and dumping of waste materials103US 4,432,666 AVFI, Verwertungsgesellschaft fur Industrieruckstande mbH · 1984
- Method for treating wastes by solidification97US 4,518,508 ASolidTek Systems, Inc. · 1985
- Pathogenic waste treatment81US 5,422,015 AHondo Chemical, Inc. · 1995
- Disposal method and use of sewage sludge72US 4,028,130 AIU Conversion Systems, Inc. · 1977