B01D 15/267
Using neutral sorbents
Official title: {using neutral sorbents, e.g. activated carbon or diatomaceous earth}
B01D15/267 (Using neutral sorbents) appears on 319 US grants and 301 published applications in this corpus.
Search patents in B01D- Granted patents
- 319
- Published applications
- 301
- Assignees
- 295
- Inventors
- 962
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 10 | 0 |
| 1978 | 15 | 0 |
| 1979 | 4 | 0 |
| 1980 | 11 | 0 |
| 1981 | 11 | 0 |
| 1982 | 12 | 0 |
| 1983 | 14 | 0 |
| 1984 | 12 | 0 |
| 1985 | 11 | 0 |
| 1986 | 10 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 7 |
| 2002 | 8 | 22 |
| 2003 | 10 | 22 |
| 2004 | 6 | 11 |
| 2005 | 13 | 11 |
| 2006 | 6 | 14 |
| 2007 | 6 | 20 |
| 2008 | 7 | 24 |
| 2009 | 13 | 21 |
| 2010 | 11 | 33 |
| 2011 | 16 | 13 |
| 2012 | 14 | 10 |
| 2013 | 14 | 6 |
| 2014 | 9 | 6 |
| 2015 | 6 | 5 |
| 2016 | 4 | 2 |
| 2017 | 1 | 0 |
| 2018 | 2 | 0 |
| 2019 | 8 | 13 |
| 2020 | 4 | 8 |
| 2021 | 11 | 7 |
| 2022 | 6 | 12 |
| 2023 | 4 | 6 |
| 2024 | 9 | 8 |
| 2025 | 4 | 13 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Systems and methods for the enhancement of midstream-liquid resources for direct metal extraction30 Sep 2025US 12,428,702 B2Lithos Industries Inc.
- Method for extracting low-molecular-weight substance existing in biological sample17 Jun 2025US 12,330,139 B2TAS Project Co., Ltd.
- Chromatography column packing material, chromatography column, method for producing chromatography column, chromatography analysis apparatus, and analysis method17 Sep 2026US 2026/0273435 A1AQAS Corporation
- Nano-plastic removal method and nano-plastic adsorbent30 Jul 2026US 2026/0216618 A1Kuraray Co., Ltd.
- System and method of on-site exchange of sorbent media into a large mobile adsorber vessel21 May 2026US 2026/0138052 A1Calgon Carbon Corporation
- Process for removing impurities in feedstocks7 May 2026US 2026/0125606 A1Topsoe A/S
- Method for producing tributyl phosphate, purified tributyl phosphate obtained thereby, and extractant using same19 Mar 2026US 2026/0078138 A1Refine Holdings Co., Ltd.
Most cited
By later US patents
- 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
- Method and composition for removing uremic toxins in dialysis processes191US 7,241,272 B2Baxter International Inc. · 2007
- Method and composition for removing uremic toxins in dialysis processes142US 8,002,726 B2Baxter International Inc. · 2011
- Portable hepatic-assist method and apparatus for same133US 4,209,392 A1980
- Method and composition for removing uremic toxins in dialysis processes107US 8,066,658 B2Baxter International Inc. · 2011