B01J 20/28
Solid sorbent compositions or filter aid compositions: characterised by their form or
Official title: characterised by their form or physical properties
B01J20/28 (Solid sorbent compositions or filter aid compositions: characterised by their form or) appears on 7,017 US grants and 9,063 published applications in this corpus.
Search patents in B01J- Granted patents
- 7,017
- Published applications
- 9,063
- Assignees
- 3,463
- Inventors
- 18,610
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 19 | 0 |
| 1978 | 21 | 0 |
| 1979 | 23 | 0 |
| 1980 | 15 | 0 |
| 1981 | 20 | 0 |
| 1982 | 27 | 0 |
| 1983 | 23 | 0 |
| 1984 | 20 | 0 |
| 1985 | 27 | 0 |
| 1986 | 15 | 0 |
| 1987 | 51 | 0 |
| 1988 | 36 | 0 |
| 1989 | 41 | 0 |
| 1990 | 43 | 0 |
| 1991 | 57 | 0 |
| 1992 | 65 | 0 |
| 1993 | 52 | 0 |
| 1994 | 60 | 0 |
| 1995 | 62 | 0 |
| 1996 | 74 | 0 |
| 1997 | 77 | 0 |
| 1998 | 76 | 0 |
| 1999 | 89 | 0 |
| 2000 | 81 | 0 |
| 2001 | 100 | 44 |
| 2002 | 100 | 171 |
| 2003 | 120 | 209 |
| 2004 | 129 | 220 |
| 2005 | 95 | 238 |
| 2006 | 123 | 239 |
| 2007 | 128 | 196 |
| 2008 | 95 | 223 |
| 2009 | 112 | 267 |
| 2010 | 143 | 306 |
| 2011 | 134 | 293 |
| 2012 | 186 | 279 |
| 2013 | 221 | 327 |
| 2014 | 240 | 351 |
| 2015 | 235 | 403 |
| 2016 | 275 | 390 |
| 2017 | 283 | 425 |
| 2018 | 320 | 511 |
| 2019 | 352 | 519 |
| 2020 | 379 | 533 |
| 2021 | 382 | 508 |
| 2022 | 361 | 556 |
| 2023 | 381 | 514 |
| 2024 | 360 | 502 |
| 2025 | 408 | 491 |
| 2026 | 262 | 348 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Column comprising particles6 Oct 2026US 12,752,220 B2Agilent Technologies, Inc.
- High throughput moving panel direct air capture system6 Oct 2026US 12,752,238 B2Zero Carbon Systems, Inc.
- Absorption method and mesoporous alumina used for the same6 Oct 2026US 12,752,252 B2Fujimi Incorporated
- M-xylene adsorbent and preparation method therefor6 Oct 2026US 12,752,253 B2China Petroleum & Chemical Corporation
- Preparation method of superabsorbent polymer6 Oct 2026US 12,752,255 B2LG Chem.Ltd.
- Polysiloxane, method for its production and deodorant comprising it8 Oct 2026US 2026/0306689 A1Sagami Chemical Research Institute
- Layered Double Oxide and Preparation Method and Use Thereof8 Oct 2026US 2026/0307040 A1Quzhou Institute for Innovation in Resource Chemical Engineering
- Synthesis of layered material from eggshell waste8 Oct 2026US 2026/0307041 A1Yildiz Teknik Universitesi
- Sorbent for lithium extraction from brines8 Oct 2026US 2026/0307042 A1International Battery Metals, Ltd.
- Modified Metal-Organic Framework (MOF) Compositions, Process of Making and Process of Use Thereof8 Oct 2026US 2026/0307047 A1NuMat Technologies, Inc.
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
- Plasma concentrate apparatus and method289US 6,905,612 B2Hanuman LLC · 2005
- Desiccant entrained polymer287US 5,911,937 ACapitol Specialty Plastics, Inc. · 1999