C02F 1/288
Using composite sorbents
Official title: {using composite sorbents, e.g. coated, impregnated, multi-layered}
C02F1/288 (Using composite sorbents) appears on 1,208 US grants and 1,654 published applications in this corpus.
Search patents in C02F- Granted patents
- 1,208
- Published applications
- 1,654
- Assignees
- 928
- Inventors
- 3,667
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 7 | 0 |
| 1980 | 4 | 0 |
| 1981 | 7 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 8 | 0 |
| 1989 | 5 | 0 |
| 1990 | 8 | 0 |
| 1991 | 9 | 0 |
| 1992 | 11 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 7 | 0 |
| 2000 | 9 | 0 |
| 2001 | 7 | 2 |
| 2002 | 10 | 19 |
| 2003 | 7 | 16 |
| 2004 | 20 | 34 |
| 2005 | 12 | 38 |
| 2006 | 11 | 32 |
| 2007 | 22 | 31 |
| 2008 | 27 | 49 |
| 2009 | 20 | 40 |
| 2010 | 19 | 48 |
| 2011 | 31 | 62 |
| 2012 | 35 | 76 |
| 2013 | 37 | 61 |
| 2014 | 52 | 94 |
| 2015 | 44 | 75 |
| 2016 | 42 | 77 |
| 2017 | 47 | 66 |
| 2018 | 62 | 74 |
| 2019 | 56 | 79 |
| 2020 | 60 | 106 |
| 2021 | 58 | 104 |
| 2022 | 61 | 98 |
| 2023 | 72 | 93 |
| 2024 | 92 | 106 |
| 2025 | 117 | 109 |
| 2026 | 46 | 65 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Silica-based nanoparticles for PFAS remediation6 Oct 2026US 12,752,323 B2Regents of the University of Minnesota
- Silicon-aluminum-iron composite material, and preparation method therefor and use thereof29 Sep 2026US 12,746,526 B2Guangdong Brunp Recycling Technology Co., Ltd.
- Composite metal oxide29 Sep 2026US 12,747,166 B2SETOLAS Holdings, Inc.
- Method for preparing lithium extraction absorbent and its application1 Sep 2026US 12,722,138 B2Harbin Institute of Technology
- Oil and fuel collector25 Aug 2026US 12,714,951 B2Manvers Engineering Limited
- Photothermal polymeric aerogels for wastewater detoxification and water recycling8 Oct 2026US 2026/0308020 A1University of Kentucky Research Foundation
- Oxygen or hydrogen functional water production device1 Oct 2026US 2026/0296941 A1Cosan Co., Ltd.
- Composite resins for selective germanium removal from aqueous solutions24 Sep 2026US 2026/0284636 A1Advanced Isotope Technologies, LLC
- Porous nanocomposites of oxidised nanofibrillated cellulose and natural rubber latex comprising antimicrobial metal oxides, production processes and uses3 Sep 2026US 2026/0257198 A1Centro Nacional De Pesquisa Em Energia E Materiais
- Lithium ion adsorbents27 Aug 2026US 2026/0249268 A1Empower Innovation & Technology LLC
Most cited
By later US patents
- Gravity-flow filtration cartridge for the removal of microorganisms and/or other contaminants124US 6,524,477 B1Rich Buhler · 2003
- Water filter107US 4,753,728 AAmway Corporation · 1988
- Purification of fluids with nanomaterials104US 7,211,320 B1Seldon Technologies, LLC · 2007
- Nanomesh article and method of using the same for purifying fluids88US 7,419,601 B2Seldon Technologies, LLC · 2008
- Enhanced in-bottle filtration mechanism and techniques84US 6,136,189 AInnova Pure Water Inc. · 2000