C02F 11/126
Using drum filters
Official title: using drum filters
C02F11/126 (Using drum filters) appears on 33 US grants and 38 published applications in this corpus.
Search patents in C02F- Granted patents
- 33
- Published applications
- 38
- Assignees
- 41
- Inventors
- 103
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 3 |
| 2016 | 1 | 2 |
| 2017 | 2 | 1 |
| 2018 | 2 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 6 |
| 2021 | 3 | 4 |
| 2022 | 3 | 5 |
| 2023 | 1 | 1 |
| 2024 | 2 | 4 |
| 2025 | 4 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system for pre-treating high strength wastewater7 Jul 2026US 12,673,887 B2
- Nanobubbles for anaerobic processes10 Feb 2026US 12,545,888 B2Moleaer, Inc.
- Apparatus, systems, and processes employing wet/dry suction filter with chicaned suction head5 Aug 2025US 12,377,372 B2Greatpyr Resources LLC
- Flow-through filtration and waste separation device5 Aug 2025US 12,378,136 B2
- Composition and method for the dewatering of aqueous suspensions17 Jun 2025US 12,330,988 B2Solenis Technologies, L.P.
- System for dewatering and hygienization of wet waste streams23 Jul 2026US 2026/0209098 A1Carbon Twelve AS
- Flow-Through Filtration and Waste Separation Device1 May 2025US 2025/0136470 A1
- Reaction and separation apparatus13 Feb 2025US 2025/0050243 A1Bioly Limited
- Nanobubbles for anaerobic processes28 Nov 2024US 2024/0392236 A1Moleaer, Inc.
- Methods and systems for classification and recovery1 Aug 2024US 2024/0253060 A1Somerset International Finance Designated Activity Company
Most cited
By later US patents
- Rotary drum filter with reciprocating nozzle means70US 5,470,472 ADorr-Oliver Incorporated · 1995
- Method for dewatering sludge-type material24US 4,402,834 AAlbert Klein KG · 1983
- Process and apparatus for treating fatty waste water18US 3,951,795 AAlar Engineering Corporation · 1976
- Slurry dehydrating apparatus12US 4,269,719 A1981
- Dewatering of slimes7US 4,303,532 AThe United States of America as represented by the Secretary of the Interior · 1981