C02F 2103/24
From tanneries
Official title: from tanneries
C02F2103/24 (From tanneries) appears on 54 US grants and 53 published applications in this corpus.
Search patents in C02F- Granted patents
- 54
- Published applications
- 53
- Assignees
- 55
- Inventors
- 205
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 2 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 6 |
| 2014 | 2 | 2 |
| 2015 | 1 | 5 |
| 2016 | 2 | 2 |
| 2017 | 4 | 10 |
| 2018 | 5 | 3 |
| 2019 | 4 | 5 |
| 2020 | 3 | 2 |
| 2021 | 3 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 3 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for simultaneously treating high concentration of sulfide and organic composition contained in waste liquid2 Dec 2025US 12,486,185 B2CPC Corporation, Taiwan
- Process of extraction of metals from a wet mass of waste30 Sep 2025US 12,428,703 B2Hbi S.R.L.
- Method for chromium removal from post-tanning wastewater1 Apr 2025US 12,264,094 B2Sichuan University
- Cold temperature-resistant microbials and methods of their use3 Dec 2024US 12,157,690 B2Microbial Discovery Group, LLC
- Destabilization and separation of high stable colloids5 Oct 2021US 11,136,249 B1Qatar University
- Method of filtering wastewater and a wastewater treatment system18 Dec 2025US 2025/0382212 A1Bioscavenge Aps
- Method of filtering tannery wastewater and a tannery wastewater treatment system4 Dec 2025US 2025/0368541 A1ECCO Sko A/S
- Membrane bioreactor system for treating wastewater using oxygen2 Jan 2025US 2025/0002386 A1American Air Liquide, Inc.
- Method or process for ferrate synthesis25 Jan 2024US 2024/0025758 A1
- Method for simultaneously treating high concentration of sulfide and organic composition contained in waste liquid21 Dec 2023US 2023/0406744 A1CPC Corporation, Taiwan
Most cited
By later US patents
- Vortex coagulation means and method for wastewater clarification46US 4,031,006 ASwift & Company · 1977
- Purification of industrial waste waters by flotation25US 3,975,269 ASwift & Company · 1976
- Process and apparatus for fixing, encapsulating, stabilizing and detoxifying heavy metals and the like in metal-containing sludges, soils, ash and similar materials25US 4,781,944 A1988
- Method of clarifying proteinaceous waste water containing solid impurities19US 4,559,146 ASilverton Tannery Limited · 1985
- Purification of waste stream from tanning process by adsorption on an adsorbent comprising a mixture of alumina and Y zeolite13US 4,717,483 AAluminum Company of America · 1988