C02F 11/16
Using drying or composting beds
Official title: using drying or composting beds
C02F11/16 (Using drying or composting beds) appears on 81 US grants and 86 published applications in this corpus.
Search patents in C02F- Granted patents
- 81
- Published applications
- 86
- Assignees
- 78
- Inventors
- 209
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 4 |
| 2006 | 3 | 4 |
| 2007 | 2 | 3 |
| 2008 | 5 | 8 |
| 2009 | 2 | 5 |
| 2010 | 3 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 0 | 0 |
| 2014 | 2 | 8 |
| 2015 | 0 | 4 |
| 2016 | 4 | 6 |
| 2017 | 2 | 5 |
| 2018 | 3 | 3 |
| 2019 | 2 | 6 |
| 2020 | 4 | 7 |
| 2021 | 2 | 4 |
| 2022 | 7 | 6 |
| 2023 | 2 | 0 |
| 2024 | 6 | 3 |
| 2025 | 1 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for remediation of wastewater including aerobic and electrocoagulation treatment23 Dec 2025US 12,503,378 B2Bio2 Pw Inc.
- Filtration apparatus utilizing differential pressure over a filtering element3 Dec 2024US 12,157,688 B2Pro-Flo AS
- Curing and inoculation of pasteurized digestate15 Oct 2024US 12,116,297 B2
- Tailings deposition23 Jul 2024US 12,043,971 B2Anglo American Technical & Sustainability Services Ltd
- Process for treating sewage sludge11 Jun 2024US 12,006,241 B2RDP Technologies, Inc.
- Method of processing drinking water treatment material20 Aug 2026US 2026/0242268 A1Reale Lime
- System and method for remediation of wastewater including aerobic and electrocoagulation treatment7 May 2026US 2026/0125297 A1Bio2 Pw Inc.
- Methods and related apparatus for processing biosolids10 Jul 2025US 2025/0223212 A1Brown and Caldwell
- Method for treating wastewater of neopentyl glycol19 Dec 2024US 2024/0417281 A1LG Chem.Ltd.
- System for drying sludge as well as sludge turner25 Jul 2024US 2024/0246848 A1Huber SE
Most cited
By later US patents
- Method for treating bioorganic and wastewater sludges55US 5,853,450 AMedical College of Ohio · 1998
- Modular rock replacing drain field apparatus47US 4,588,325 A1986
- Method and apparatus for treating liquid sewage and waste46US 3,960,718 A1976
- High rate sludge reactor43US 4,668,388 ATexaco Inc. · 1987
- High-strength septage biological treatment system36US 6,126,827 A2000