B01J 20/14
Diatomaceous earth
B01J20/14 (Diatomaceous earth) appears on 207 US grants and 289 published applications in this corpus.
Search patents in B01J- Granted patents
- 207
- Published applications
- 289
- Assignees
- 207
- Inventors
- 621
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 2 |
| 2002 | 4 | 4 |
| 2003 | 3 | 8 |
| 2004 | 5 | 7 |
| 2005 | 1 | 5 |
| 2006 | 1 | 12 |
| 2007 | 3 | 6 |
| 2008 | 3 | 6 |
| 2009 | 2 | 11 |
| 2010 | 5 | 18 |
| 2011 | 6 | 8 |
| 2012 | 11 | 14 |
| 2013 | 13 | 7 |
| 2014 | 12 | 16 |
| 2015 | 7 | 11 |
| 2016 | 4 | 10 |
| 2017 | 5 | 17 |
| 2018 | 6 | 17 |
| 2019 | 9 | 18 |
| 2020 | 13 | 19 |
| 2021 | 9 | 10 |
| 2022 | 6 | 21 |
| 2023 | 9 | 10 |
| 2024 | 11 | 13 |
| 2025 | 10 | 17 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Granulated hierarchical material structure29 Sep 2026US 12,746,527 B2Metalmark Innovations, PBC
- Method for efficiently extracting and separating high-purity tetrodotoxin from pufferfish viscera18 Aug 2026US 12,709,618 B2Zhongyang Biotechnology (Shanghai) Co., LTD.
- Porous biochar for improving severe pollution and preparation method therefor4 Aug 2026US 12,698,225 B2Chinese Research Academy of Environmental Sciences
- Absorbent compositions, methods of forming the same, and animal litter prepared with such compositions7 Jul 2026US 12,673,310 B2U.S. Silica Company
- Sorbent coated hollow fiber filtration method using less spent sorbent flushing liquid12 May 2026US 12,623,170 B2Electrophor, Inc.
- Absorbent Compositions, Methods of Forming the Same, and Animal Litter Prepared with Such Compositions16 Apr 2026US 2026/0102755 A1U.S. Silica Company
- Granulate of at least one of expanded milled perlite, diatomaceous earth and sepiolite as an absorbent5 Feb 2026US 2026/0034530 A1ImerTech SAS
- Processing Of Phosphate Compounds25 Dec 2025US 2025/0388497 A1Easymining Sweden AB
- Product for mine tailings6 Nov 2025US 2025/0339794 A1Active Minerals International, LLC
- Heavy Metal and Hydrocarbon Filter and Methods of Use18 Sep 2025US 2025/0288971 A1Ertec Environmental Systems LLC
Most cited
By later US patents
- Modified siliceous chromatographic supports159US 4,724,207 ACuno Incorporated · 1988
- Microporous filter media, filtration systems containing same, and methods of making and using114US 6,630,016 B2Koslow Technologies Corporation · 2003
- Molecular separation column and use thereof58US 4,512,897 AAMF Incorporated · 1985
- Composite materials comprising deformable xerogel within the pores of particulate rigid supports useful in chromatography57US 4,335,017 AUnited Kingdom Atomic Energy Authority · 1982
- Arsenic filtering media47US 6,200,482 B1ADI International Inc. · 2001