C02F 11/123
Using belt or band filters
Official title: using belt or band filters
C02F11/123 (Using belt or band filters) appears on 140 US grants and 142 published applications in this corpus.
Search patents in C02F- Granted patents
- 140
- Published applications
- 142
- Assignees
- 126
- Inventors
- 417
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 2 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 2 | 3 |
| 2012 | 1 | 6 |
| 2013 | 2 | 6 |
| 2014 | 0 | 6 |
| 2015 | 1 | 12 |
| 2016 | 3 | 13 |
| 2017 | 9 | 9 |
| 2018 | 11 | 14 |
| 2019 | 7 | 8 |
| 2020 | 11 | 8 |
| 2021 | 6 | 7 |
| 2022 | 8 | 18 |
| 2023 | 4 | 5 |
| 2024 | 12 | 9 |
| 2025 | 6 | 3 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method of using nanobubbles in a dewatering process for a liquid-solid stream8 Sep 2026US 12,729,146 B2Moleaer, Inc.
- Method and system for pre-treating high strength wastewater7 Jul 2026US 12,673,887 B2
- Method and system for fine particulate removal and processing from a coal combustion residual surface impoundment2 Jun 2026US 12,643,804 B2United Conveyor Corporation
- Use of a hydraulic binder containing calcium aluminate for the production of a construction material12 May 2026US 12,623,963 B2ARDEX Group GmbH
- Nanobubbles for anaerobic processes10 Feb 2026US 12,545,888 B2Moleaer, Inc.
- Method and System for Fine Particulate Removal and Processing from a Coal Combustion Residual Surface Impoundment24 Sep 2026US 2026/0285729 A1United Conveyor Corporation
- System for dewatering and hygienization of wet waste streams23 Jul 2026US 2026/0209098 A1Carbon Twelve AS
- System and method of using nanobubbles in a dewatering process for a liquid-solid stream28 May 2026US 2026/0145977 A1Moleaer, Inc.
- Slurry treatment apparatus12 Mar 2026US 2026/0070830 A1Vietti Slurrytec (Pty) Ltd
- Double Drum Systems and Processes for Converting Biosolids to Fertilizer6 Nov 2025US 2025/0340494 A1
Most cited
By later US patents
- Process for handling waste from oil well operations41US 4,507,208 ADrilling Waste, Incorporated · 1985
- Method for dewatering sludge32US 4,101,400 AMachinefabriek W. Hubert & Co. B.V. · 1978
- Process of dewatering sludge-type material and installation for carrying out the process32US 4,192,743 AAlbert Klein KG · 1980
- Partial oxidation of sewage sludge30US 5,211,724 ATexaco Inc. · 1993
- Flocculating agent combinations for mineral slime filtration systems27US 4,931,190 AEnvirotech Corporation · 1990