B01J 20/3268
Macromolecular compounds
Official title: {Macromolecular compounds}
B01J20/3268 (Macromolecular compounds) appears on 1,557 US grants and 1,671 published applications in this corpus.
Search patents in B01J- Granted patents
- 1,557
- Published applications
- 1,671
- Assignees
- 912
- Inventors
- 4,066
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 10 | 0 |
| 1978 | 8 | 0 |
| 1979 | 11 | 0 |
| 1980 | 7 | 0 |
| 1981 | 8 | 0 |
| 1982 | 9 | 0 |
| 1983 | 13 | 0 |
| 1984 | 5 | 0 |
| 1985 | 13 | 0 |
| 1986 | 13 | 0 |
| 1987 | 21 | 0 |
| 1988 | 15 | 0 |
| 1989 | 25 | 0 |
| 1990 | 26 | 0 |
| 1991 | 26 | 0 |
| 1992 | 37 | 0 |
| 1993 | 22 | 0 |
| 1994 | 25 | 0 |
| 1995 | 23 | 0 |
| 1996 | 24 | 0 |
| 1997 | 50 | 0 |
| 1998 | 23 | 0 |
| 1999 | 30 | 0 |
| 2000 | 37 | 0 |
| 2001 | 30 | 8 |
| 2002 | 19 | 51 |
| 2003 | 31 | 45 |
| 2004 | 37 | 57 |
| 2005 | 20 | 53 |
| 2006 | 27 | 52 |
| 2007 | 28 | 56 |
| 2008 | 24 | 43 |
| 2009 | 24 | 47 |
| 2010 | 32 | 66 |
| 2011 | 22 | 52 |
| 2012 | 38 | 55 |
| 2013 | 40 | 60 |
| 2014 | 52 | 86 |
| 2015 | 47 | 70 |
| 2016 | 54 | 74 |
| 2017 | 55 | 76 |
| 2018 | 50 | 76 |
| 2019 | 54 | 84 |
| 2020 | 50 | 78 |
| 2021 | 69 | 94 |
| 2022 | 44 | 68 |
| 2023 | 62 | 70 |
| 2024 | 49 | 102 |
| 2025 | 69 | 93 |
| 2026 | 38 | 55 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01J 20/3272Polymers obtained by reactions otherwise than involving only carbon to carbon unsaturated1,041
- B01J 20/328Polymers on the carrier being further modified480
- B01J 20/327Polymers obtained by reactions involving only carbon to carbon unsaturated bonds392
- B01J 20/3278Polymers being grafted on the carrier182
- B01J 20/3276Copolymers163
Recent patents
- Preparation method for superabsorbent polymer8 Sep 2026US 12,728,402 B2LG Chem.Ltd.
- Chromatography beads, production and use thereof1 Sep 2026US 12,722,143 B2Cytiva BioProcess R&D AB
- Liquid compositions, uses and method of making the same25 Aug 2026US 12,714,981 B1Stewart Superabsorbents, LLC
- Regenerable rotor and method of manufacture18 Aug 2026US 12,708,891 B2Munters Corporation
- Supported poly(allyl)amine and derivatives for CO2 capture from flue gas or ultra-dilute gas streams such as ambient air or admixtures thereof11 Aug 2026US 12,702,966 B2Georgia Tech Research Corporation
- Separation Matrix and a Method of Separating Antibodies1 Oct 2026US 2026/0295462 A1Cytiva BioProcess R&D AB
- Moisture absorption film layered product1 Oct 2026US 2026/0295559 A1Mazda Motor Corporation
- Supported poly(allyl)amine and derivatives for co2 capture from flue gas or ultra-dilute gas streams such as ambient air or admixtures thereof24 Sep 2026US 2026/0284637 A1Georgia Tech Research Corporation
- Separation membrane and method for producing same17 Sep 2026US 2026/0273476 A1Hiroshima University
- Kappa light chain-binding convection matrix3 Sep 2026US 2026/0258092 A1Cytiva BioProcess R&D AB
Most cited
By later US patents
- Magnetic iron-dextran microspheres466US 4,452,773 ACanadian Patents and Development Limited · 1984
- Affinity matrices of modified polysaccharide supports427US 5,059,654 ACuno Incorporated · 1991
- Magnetic particles for use in separations333US 4,554,088 AAdvanced Magnetics, Inc. · 1985
- Preparation of trichloro-s-triazine activated supports for coupling ligands276US 4,229,537 ANew York University · 1980
- Magnetic particles for use in separations245US 4,672,040 AAdvanced Magnetics, Inc. · 1987