B01J 20/3289
Coatings involving more than one layer of same or different nature
Official title: {Coatings involving more than one layer of same or different nature}
B01J20/3289 (Coatings involving more than one layer of same or different nature) appears on 263 US grants and 284 published applications in this corpus.
Search patents in B01J- Granted patents
- 263
- Published applications
- 284
- Assignees
- 204
- Inventors
- 752
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 7 | 1 |
| 2002 | 8 | 8 |
| 2003 | 5 | 10 |
| 2004 | 9 | 12 |
| 2005 | 6 | 14 |
| 2006 | 8 | 19 |
| 2007 | 9 | 8 |
| 2008 | 6 | 11 |
| 2009 | 7 | 15 |
| 2010 | 3 | 9 |
| 2011 | 4 | 9 |
| 2012 | 13 | 12 |
| 2013 | 10 | 14 |
| 2014 | 11 | 15 |
| 2015 | 5 | 16 |
| 2016 | 9 | 9 |
| 2017 | 10 | 10 |
| 2018 | 5 | 10 |
| 2019 | 7 | 15 |
| 2020 | 10 | 7 |
| 2021 | 10 | 11 |
| 2022 | 8 | 10 |
| 2023 | 9 | 6 |
| 2024 | 5 | 19 |
| 2025 | 9 | 7 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cat litter containing a fluorescent cat attractant15 Sep 2026US 12,733,621 B2Boxiecat LLC
- Superficially porous materials comprising a substantially nonporous hybrid core having narrow particle size distribution12 May 2026US 12,623,205 B2Waters Technologies Corporation
- Sorbent composition for pre-analytical treatment of samples9 Dec 2025US 12,492,974 B2Immundiagnostik AG
- Composite particles with non-porous hybrid organic-inorganic material25 Nov 2025US 12,478,949 B2Waters Technologies Corporation
- Superficially porous materials comprising a substantially nonporous core having narrow particle size distribution; process for the preparation thereof; and use thereof for chromatographic separations30 Sep 2025US 12,427,502 B2Waters Technologies Corporation
- Coated nonwoven article derived from porous polymeric fibers and methods thereof13 Aug 2026US 2026/0234865 A13M Innovative Properties Company
- Method for the production of superabsorbents23 Jul 2026US 2026/0208154 A1BASF SE
- Crosslinked streptavidin chromatographic materials and methods of use thereof16 Jul 2026US 2026/0199808 A1Waters Technologies Corporation
- Streptavidin chromatographic materials and methods of use thereof16 Jul 2026US 2026/0199809 A1Waters Technologies Corporation
- Chromatographic materials including crosslinked streptavidin and biotin and methods of use thereof16 Jul 2026US 2026/0199874 A1Waters Technologies Corporation
Most cited
By later US patents
- Use of retentate chromatography to generate difference maps229US 6,225,047 B1Ciphergen Biosystems, Inc. · 2001
- Support for high performance affinity chromatography and other uses216US 6,277,489 B1The Regents of the University of California · 2001
- Process for covalent coupling for the production of conjugates, and polysaccharide containing products thereby obtained193US 4,613,665 A1986
- Particulate material for purification of bio-macromolecules121US 6,783,962 B1UpFront Chromatography · 2004
- Surface functionalized mesoporous material and method of making same91US 6,326,326 B1Battelle Memorial Institute · 2001