B01J 20/305
Addition of material, later completely removed
Official title: {Addition of material, later completely removed, e.g. as result of heat treatment, leaching or washing, e.g. for forming pores}
B01J20/305 (Addition of material, later completely removed) appears on 477 US grants and 593 published applications in this corpus.
Search patents in B01J- Granted patents
- 477
- Published applications
- 593
- Assignees
- 390
- Inventors
- 1,593
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 8 | 0 |
| 2002 | 3 | 13 |
| 2003 | 6 | 11 |
| 2004 | 11 | 8 |
| 2005 | 6 | 17 |
| 2006 | 9 | 8 |
| 2007 | 4 | 11 |
| 2008 | 6 | 12 |
| 2009 | 2 | 16 |
| 2010 | 11 | 16 |
| 2011 | 6 | 18 |
| 2012 | 14 | 16 |
| 2013 | 16 | 19 |
| 2014 | 16 | 32 |
| 2015 | 20 | 29 |
| 2016 | 22 | 31 |
| 2017 | 27 | 32 |
| 2018 | 20 | 36 |
| 2019 | 31 | 56 |
| 2020 | 34 | 31 |
| 2021 | 28 | 36 |
| 2022 | 22 | 26 |
| 2023 | 33 | 39 |
| 2024 | 30 | 40 |
| 2025 | 31 | 25 |
| 2026 | 20 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Silicate material ZEO-2 and silicate molecular sieve ZEO-3 and synthesis method therefor and use thereof8 Sep 2026US 12,729,126 B2Jilin Province Jnobel Sci-Tech Innovation Co., Ltd
- Calcium carbonate sintered body and method for producing same, and bone grafting material8 Sep 2026US 12,729,128 B2Shiraishi Central Laboratories Co. Ltd.
- Nanoporous pure silica zeolites25 Aug 2026US 12,714,980 B2University of Puerto Rico
- Adsorbent resin for removing perfluorinated pollutants from body of water, preparation therefor, and use thereof25 Aug 2026US 12,715,787 B2Sunresin New Materials Co. Ltd.
- Support-free adsorbents for CO2 capture from air28 Jul 2026US 12,691,433 B2Lawrence Livermore National Security, LLC
- Method for preparing porous adsorbent particles, a porous adsorbent particle and sampling device, and use thereof3 Sep 2026US 2026/0257199 A1Imperial College Innovations Limited
- Porous carbon and production method thereof13 Aug 2026US 2026/0233999 A1Kuraray Co., Ltd.
- Scm-41 molecular sieve, preparation method thereof and use thereof30 Jul 2026US 2026/0216690 A1China Petroleum & Chemical Corporation
- Porous scaffold for solid desiccant30 Jul 2026US 2026/0216694 A1Carrier Corporation
- Micro-separator including 3d ordered nanoshell structure of ceramic-polymer composite for gas chromatography, method for fabricating the same and method for separating gas mixture using the same30 Jul 2026US 2026/0216698 A1Korea Advanced Institute of Science and Technology
Most cited
By later US patents
- Imprint-coating synthesis of selective functionalized ordered mesoporous sorbents for separation and sensors251US 6,251,280 B1The University of Tennessee Research Corporation · 2001
- Selective recognition of solutes in chromatographic media by artificially created affinity206US 5,916,445 ABio-Rad Laboratories, Inc. · 1999
- Composite materials comprising supported porous gels116US 7,316,919 B2Nysa Membrane Technologies · 2008
- Polymeric microbeads and method of preparation110US 5,583,162 ABiopore Corporation · 1996
- Reverse fabrication of porous materials93US 6,673,285 B2The Regents of the University of Michigan · 2004