C05F 17/50
Treatments combining two or more different biological or biochemical treatments
Official title: Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
C05F17/50 (Treatments combining two or more different biological or biochemical treatments) appears on 195 US grants and 308 published applications in this corpus.
Search patents in C05F- Granted patents
- 195
- Published applications
- 308
- Assignees
- 221
- Inventors
- 609
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 4 |
| 2003 | 3 | 4 |
| 2004 | 0 | 7 |
| 2005 | 1 | 9 |
| 2006 | 5 | 4 |
| 2007 | 3 | 9 |
| 2008 | 5 | 8 |
| 2009 | 1 | 8 |
| 2010 | 6 | 10 |
| 2011 | 4 | 12 |
| 2012 | 9 | 17 |
| 2013 | 15 | 24 |
| 2014 | 11 | 27 |
| 2015 | 11 | 21 |
| 2016 | 10 | 14 |
| 2017 | 11 | 15 |
| 2018 | 4 | 13 |
| 2019 | 15 | 14 |
| 2020 | 12 | 16 |
| 2021 | 10 | 13 |
| 2022 | 11 | 14 |
| 2023 | 8 | 13 |
| 2024 | 6 | 10 |
| 2025 | 6 | 15 |
| 2026 | 0 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and slurry treatment plant for reducing methane emission from slurry21 Oct 2025US 12,448,311 B2Stiesdal SkyClean A/S
- Plant propagation medium and methods of making and using it23 Sep 2025US 12,419,211 B2
- Method, system and stable for phosphate recovery from a waste stream10 Jun 2025US 12,325,652 B2Koninklijke Oosterhof-Holman Beheer B.V.
- Organic flocculant and fertilizer13 May 2025US 12,297,155 B2S2G Ventures Fund II, L.P.
- Aqueous and solid ammonium sulfate fertilizers and methods of producing18 Mar 2025US 12,252,450 B2M.A.R.G., LLC
- Method for improving nitrogen absorption in plants18 Jun 2026US 2026/0167582 A1
- Method for achieving a nutrient saline solution for plants in cultivated fields11 Jun 2026US 2026/0159455 A1
- Method for processing organic waste4 Jun 2026US 2026/0152451 A1Mars, Incorporated
- Plant propagation medium and methods of making and using it9 Apr 2026US 2026/0096503 A1Js Invention Factory LLC
- Anaerobic biogas plant and digestion method19 Mar 2026US 2026/0078322 A1Hitachi Zosen Inova AG
Most cited
By later US patents
- Process for separating and converting waste into useable products47US 4,053,394 A1977
- Method and apparatus for the treatment of particulate biodegradable organic waste44US 6,905,600 B2CH2M Hill, Inc. · 2005
- Method and apparatus for solids processing38US 6,451,589 B1Ghd, Inc. · 2002
- Co-composting process and apparatus for treating solid waste and sewage sludge37US 5,534,437 ABio-Waste Technologies, International, Ltd. · 1996
- Method and apparatus for solids processing37US 6,613,562 B2Ghd, Inc. · 2003