B01J 20/3251
Comprising at least two different types of heteroatoms selected from nitrogen, oxygen
Official title: {comprising at least two different types of heteroatoms selected from nitrogen, oxygen or sulphur}
B01J20/3251 (Comprising at least two different types of heteroatoms selected from nitrogen, oxygen) appears on 378 US grants and 329 published applications in this corpus.
Search patents in B01J- Granted patents
- 378
- Published applications
- 329
- Assignees
- 298
- Inventors
- 1,103
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 9 | 0 |
| 1995 | 8 | 0 |
| 1996 | 11 | 0 |
| 1997 | 11 | 0 |
| 1998 | 10 | 0 |
| 1999 | 15 | 0 |
| 2000 | 13 | 0 |
| 2001 | 11 | 5 |
| 2002 | 15 | 19 |
| 2003 | 13 | 15 |
| 2004 | 8 | 21 |
| 2005 | 8 | 12 |
| 2006 | 9 | 20 |
| 2007 | 8 | 12 |
| 2008 | 9 | 17 |
| 2009 | 6 | 17 |
| 2010 | 10 | 14 |
| 2011 | 10 | 15 |
| 2012 | 9 | 9 |
| 2013 | 10 | 17 |
| 2014 | 10 | 10 |
| 2015 | 14 | 16 |
| 2016 | 13 | 16 |
| 2017 | 13 | 11 |
| 2018 | 11 | 6 |
| 2019 | 6 | 12 |
| 2020 | 12 | 12 |
| 2021 | 5 | 9 |
| 2022 | 7 | 10 |
| 2023 | 3 | 9 |
| 2024 | 6 | 6 |
| 2025 | 6 | 9 |
| 2026 | 4 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polymeric sorbents for aldehydes and methods of making1 Sep 2026US 12,722,139 B23M Innovative Properties Company
- Functionalized silica nanoparticles for lead adsorption27 Jan 2026US 12,533,653 B2King Saud University
- Sorbent material for removing contaminants from water13 Jan 2026US 12,521,693 B2Puraffinity Ltd.
- Sample preparation compositions, devices, systems and methods6 Jan 2026US 12,515,196 B2Pierce Biotechnology, Inc.
- Functionalized silica nanoparticles for lead adsorption4 Nov 2025US 12,458,948 B1King Saud University
- Hydrophobic acidic gas absorbents20 Aug 2026US 2026/0241369 A1
- Sorbent Material and Method of Making the Same13 Aug 2026US 2026/0233199 A1Marmon Water (Singapore) Pte. Ltd.
- Composition of Super Absorbent Polymer and Preparation Method Thereof23 Jul 2026US 2026/0208157 A1LG Chem.Ltd.
- Solid substrate to immobilize reactive liquid9 Jul 2026US 2026/0192278 A1ExxonMobil Technology and Engineering Company
- Water-insoluble carrier for activated platelet removal11 Jun 2026US 2026/0158204 A1Toray Industries, Inc.
Most cited
By later US patents
- Preparation of trichloro-s-triazine activated supports for coupling ligands276US 4,229,537 ANew York University · 1980
- Molecular imaging239US 5,372,719 APerSeptive Biosystems, Inc. · 1994
- Molecular imaging235US 5,453,199 APerSeptive Biosystems, Inc. · 1995
- Adsorbent compositions173US 4,474,896 AUnion Carbide Corporation · 1984
- Regenerable solid amine sorbent150US 5,876,488 AUnited Technologies Corporation · 1999