C02F 3/105
Characterized by the chemical composition
Official title: {Characterized by the chemical composition}
C02F3/105 (Characterized by the chemical composition) appears on 280 US grants and 391 published applications in this corpus.
Search patents in C02F- Granted patents
- 280
- Published applications
- 391
- Assignees
- 260
- Inventors
- 967
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 9 | 0 |
| 1998 | 1 | 0 |
| 1999 | 7 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 1 |
| 2002 | 1 | 4 |
| 2003 | 4 | 5 |
| 2004 | 2 | 2 |
| 2005 | 4 | 1 |
| 2006 | 4 | 5 |
| 2007 | 2 | 8 |
| 2008 | 3 | 3 |
| 2009 | 0 | 7 |
| 2010 | 6 | 7 |
| 2011 | 6 | 14 |
| 2012 | 8 | 12 |
| 2013 | 11 | 22 |
| 2014 | 12 | 21 |
| 2015 | 9 | 21 |
| 2016 | 6 | 19 |
| 2017 | 11 | 20 |
| 2018 | 19 | 19 |
| 2019 | 19 | 24 |
| 2020 | 21 | 24 |
| 2021 | 15 | 33 |
| 2022 | 18 | 23 |
| 2023 | 12 | 23 |
| 2024 | 18 | 31 |
| 2025 | 12 | 25 |
| 2026 | 11 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Biofilm reactor having at least one weighted member22 Sep 2026US 12,741,894 B2
- Efficient nitrogen and phosphorus removal process system for mariculture tail water treatment15 Sep 2026US 12,735,339 B2Tianjin Research Institute for Water Transport Engineering, M.O.T.
- Porous biochar for improving severe pollution and preparation method therefor4 Aug 2026US 12,698,225 B2Chinese Research Academy of Environmental Sciences
- System and method for continuous metabolism of 1,4-dioxane9 Jun 2026US 12,649,676 B2The Florida State University Research Foundation, Inc.
- Biofilter with shaped underdrain assembly12 May 2026US 12,623,939 B2Johnson Screens, Inc.
- Media for use in wastewater treatment8 Oct 2026US 2026/0308032 A1Technologies Bionest Inc.
- Systems for catalytically removing per- and polyfluoroalkyl substances from a fluid and related methods1 Oct 2026US 2026/0296939 A1Arizona Board of Regents on behalf of Arizona State University
- Filtering System for a Storm Water Catch Basin17 Sep 2026US 2026/0274709 A1Trash Guard Incorporated
- Ceramics and methods of their manufacture30 Jul 2026US 2026/0217613 A1ImerTech SAS
- Biofilms encapsulated with sol-gel30 Jul 2026US 2026/0218115 A1University of Iowa Research Foundation
Most cited
By later US patents
- Waste water treatment apparatus84US 6,007,712 AKuraray Co., Ltd. · 1999
- Process for treatment of aqueous environments containing a water soluble polymer74US 6,623,643 B2Microtek Medical Holdings, Inc. · 2003
- Polyvinyl alcohol hydrogel and process for producing the same71US 6,139,963 AKuraray Co., Ltd. · 2000
- Microorganisms immobilized in chitosan crosslinked with lignosulphonate for purification of waste water61US 6,051,411 ANational Research Council of Canada · 2000
- Support containing particulate adsorbent and microorganisms for removal of pollutants50US 5,580,770 AAlliedSignal Inc. · 1996