C09K 3/32
Materials not provided for elsewhere: for absorbing liquids to remove pollution
Official title: for absorbing liquids to remove pollution, e.g. oil, gasoline, fat
C09K3/32 (Materials not provided for elsewhere: for absorbing liquids to remove pollution) appears on 456 US grants and 298 published applications in this corpus.
Search patents in C09K- Granted patents
- 456
- Published applications
- 298
- Assignees
- 326
- Inventors
- 979
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 12 | 0 |
| 1984 | 7 | 0 |
| 1985 | 10 | 0 |
| 1986 | 5 | 0 |
| 1987 | 10 | 0 |
| 1988 | 13 | 0 |
| 1989 | 12 | 0 |
| 1990 | 12 | 0 |
| 1991 | 18 | 0 |
| 1992 | 12 | 0 |
| 1993 | 13 | 0 |
| 1994 | 12 | 0 |
| 1995 | 16 | 0 |
| 1996 | 12 | 0 |
| 1997 | 19 | 0 |
| 1998 | 34 | 0 |
| 1999 | 10 | 0 |
| 2000 | 8 | 0 |
| 2001 | 10 | 1 |
| 2002 | 6 | 8 |
| 2003 | 8 | 5 |
| 2004 | 3 | 12 |
| 2005 | 5 | 7 |
| 2006 | 3 | 3 |
| 2007 | 4 | 8 |
| 2008 | 0 | 6 |
| 2009 | 4 | 16 |
| 2010 | 5 | 9 |
| 2011 | 3 | 10 |
| 2012 | 6 | 21 |
| 2013 | 11 | 18 |
| 2014 | 13 | 24 |
| 2015 | 10 | 27 |
| 2016 | 17 | 19 |
| 2017 | 18 | 15 |
| 2018 | 9 | 25 |
| 2019 | 12 | 11 |
| 2020 | 13 | 13 |
| 2021 | 9 | 10 |
| 2022 | 8 | 9 |
| 2023 | 4 | 8 |
| 2024 | 5 | 5 |
| 2025 | 10 | 5 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Shape memory poly(β-hydroxythioether) foams rapidly produced from multifunctional epoxides and thiols18 Aug 2026US 12,708,892 B2Ohio University
- Oil absorbent wiping product16 Jun 2026US 12,653,368 B2Kimberly-Clark Worldwide, Inc.
- Adsorbent, preparation method therefor and use thereof19 May 2026US 12,629,659 B2City University of Hong Kong Shenzhen Futian Research Institute
- Obtaining, formulating and producing oxidizable organic plant and mineral carbon for remediation, recovery, conditioning of soil, subsoil, water sources impregnated with fats, oils and hydrocarbons31 Mar 2026US 12,590,269 B2
- Composition for polymerization and grafting to a polysaccharide or agricultural fibers and method of manufacturing thereof7 Oct 2025US 12,435,253 B2Green Boom Corp.
- Composition for polymerization and grafting to a polysaccharide or agricultural fibers and method of manufacturing thereof16 Jul 2026US 2026/0201229 A1Green Boom Corp.
- Liquid contaminant absorption device and methods of use25 Jun 2026US 2026/0174643 A1Setatech USA, Inc.
- Absorption devices, materials, and methods18 Jun 2026US 2026/0166518 A1Celgard, LLC
- Herbal absorbent material for combating oil and oil spills6 Nov 2025US 2025/0339838 A1Istanbul Teknik Universitesi
- Almond hull and/or shell absorbent and method of use6 Nov 2025US 2025/0339839 A1
Most cited
By later US patents
- Absorbent article360US 4,666,983 ANippon Shokubai Kagaku Kogyo Co., Ltd. · 1987
- Process for containment of liquids as solids or semisolids152US 4,460,292 AAgritec, Inc. · 1984
- Solvent soaps and methods employing same152US 5,723,423 AUnion Oil Company of California, dba UNOCAL · 1998
- Process for the silylation of inorganic oxides99US 5,686,054 AWacker Chemie AG · 1997
- Clean up and passivation of mercury in gas liquefaction plants79US 4,764,219 AMobil Oil Corporation · 1988