B01J 20/3263
Comprising a cyclic structure containing at least one of the heteroatoms nitrogen
Official title: {comprising a cyclic structure containing at least one of the heteroatoms nitrogen, oxygen or sulfur, e.g. an heterocyclic or heteroaromatic structure}
B01J20/3263 (Comprising a cyclic structure containing at least one of the heteroatoms nitrogen) appears on 116 US grants and 34 published applications in this corpus.
Search patents in B01J- Granted patents
- 116
- Published applications
- 34
- Assignees
- 76
- Inventors
- 277
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 9 | 0 |
| 1990 | 11 | 0 |
| 1991 | 4 | 0 |
| 1992 | 8 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 0 |
| 2002 | 7 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 3 |
| 2008 | 0 | 4 |
| 2009 | 1 | 2 |
| 2010 | 1 | 2 |
| 2011 | 0 | 4 |
| 2012 | 2 | 1 |
| 2013 | 1 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 4 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 2 |
| 2019 | 1 | 2 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 3 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Redox active materials, processes and uses thereof8 Jul 2025US 12,351,589 B2Kasis Environmental Ltd.
- Redox active materials, processes and uses thereof26 Dec 2023US 11,851,444 B2Kasis Environmental Ltd.
- Composite materials containing nanoparticles and their use in chromatography30 Aug 2022US 11,426,707 B2Waters Technologies Corporation
- High efficiency, ultra-stable, bonded hydrophilic interaction chromatography (HILIC) matrix on superficially porous particles (SPPS)23 Apr 2019US 10,265,643 B2Azyp, LLC
- Chromatographic composition and methods of producing the chromatographic composition30 Jul 2026US 2026/0216699 A1Advanced Materials Technology, Inc.
- Glass container coated internally with a metal-organic framework20 Feb 2025US 2025/0059083 A1Universidad De La Laguna
- Redox active materials, processes and uses thereof20 Jun 2024US 2024/0199646 A1Kasis Environmental Ltd.
- Stationary phase materials and devices used in size exclusion chromatography1 Feb 2024US 2024/0033714 A1
- Active hydrogen-containing organic compound scavenger, composition, and applications thereof4 Jan 2024US 2024/0001334 A1Tosoh Corporation
Most cited
By later US patents
- Porous inorganic support material coated with an organic stationary phase, for use in chromatography, and process for its preparation85US 4,415,631 AAkzo N. V. · 1983
- Protein A-silica immunoadsorbent and process for its production83US 4,681,870 AIMRE Corporation · 1987
- Chromatographic process for the separation of nucleic acids71US 4,699,717 A1987
- Mixed phase chromatographic compositions68US 4,298,500 AVarian Associates, Inc. · 1981
- Reagent for cell separation58US 4,927,749 A1990