B01J 20/28057
Surface area
Official title: {Surface area, e.g. B.E.T specific surface area}
B01J20/28057 (Surface area) appears on 1,744 US grants and 2,323 published applications in this corpus.
Search patents in B01J- Granted patents
- 1,744
- Published applications
- 2,323
- Assignees
- 1,116
- Inventors
- 5,331
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 5 | 0 |
| 1978 | 7 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 9 | 0 |
| 1990 | 12 | 0 |
| 1991 | 9 | 0 |
| 1992 | 17 | 0 |
| 1993 | 13 | 0 |
| 1994 | 12 | 0 |
| 1995 | 11 | 0 |
| 1996 | 18 | 0 |
| 1997 | 19 | 0 |
| 1998 | 14 | 0 |
| 1999 | 17 | 0 |
| 2000 | 18 | 0 |
| 2001 | 28 | 11 |
| 2002 | 19 | 33 |
| 2003 | 25 | 45 |
| 2004 | 22 | 35 |
| 2005 | 14 | 39 |
| 2006 | 21 | 51 |
| 2007 | 25 | 46 |
| 2008 | 13 | 50 |
| 2009 | 32 | 67 |
| 2010 | 30 | 85 |
| 2011 | 30 | 70 |
| 2012 | 37 | 83 |
| 2013 | 54 | 92 |
| 2014 | 59 | 99 |
| 2015 | 63 | 106 |
| 2016 | 80 | 95 |
| 2017 | 74 | 122 |
| 2018 | 89 | 143 |
| 2019 | 92 | 123 |
| 2020 | 107 | 153 |
| 2021 | 95 | 146 |
| 2022 | 110 | 126 |
| 2023 | 112 | 158 |
| 2024 | 104 | 139 |
| 2025 | 120 | 116 |
| 2026 | 52 | 90 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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
- Silicon-aluminum-iron composite material, and preparation method therefor and use thereof29 Sep 2026US 12,746,526 B2Guangdong Brunp Recycling Technology Co., Ltd.
- Composite metal oxide29 Sep 2026US 12,747,166 B2SETOLAS Holdings, Inc.
- Adsorbent material, adsorption system, and adsorption process for hydrogen recovery8 Sep 2026US 12,729,116 B2Air Products and Chemicals, Inc.
- Layered Double Oxide and Preparation Method and Use Thereof8 Oct 2026US 2026/0307040 A1Quzhou Institute for Innovation in Resource Chemical Engineering
- Removal of per- and polyfluoroalkyl substances (pfas) from water with meso- and macro-porous gels8 Oct 2026US 2026/0308019 A1The University of Akron
- Selective hydrodechlorination of liquid and gas streams from plastics pyrolysis processes8 Oct 2026US 2026/0308088 A1BASF SE
- Hydrated Lime for Carbon Capture1 Oct 2026US 2026/0295556 A1Lhoist North America, Inc.
- Sorbent materials for gas storage1 Oct 2026US 2026/0295557 A1Entegris, Inc.
Most cited
By later US patents
- Magnetic particles for use in separations333US 4,554,088 AAdvanced Magnetics, Inc. · 1985
- Process for removing mercury from a gas or a liquid by absorption on a copper sulfide containing solid mass253US 4,094,777 AInstitut Francais du Petrole · 1978
- Modified siliceous chromatographic supports159US 4,724,207 ACuno Incorporated · 1988
- Biochar157US 8,361,186 B1Full Circle Biochar, Inc. · 2013
- Binding assays employing magnetic particles152US 4,628,037 AAdvanced Magnetics, Inc. · 1986