B01J 20/106
Perlite
Official title: {Perlite}
B01J20/106 (Perlite) appears on 118 US grants and 150 published applications in this corpus.
Search patents in B01J- Granted patents
- 118
- Published applications
- 150
- Assignees
- 73
- Inventors
- 242
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 2 |
| 2003 | 2 | 10 |
| 2004 | 3 | 16 |
| 2005 | 6 | 6 |
| 2006 | 1 | 6 |
| 2007 | 3 | 4 |
| 2008 | 7 | 2 |
| 2009 | 5 | 10 |
| 2010 | 3 | 6 |
| 2011 | 6 | 3 |
| 2012 | 7 | 5 |
| 2013 | 5 | 3 |
| 2014 | 4 | 9 |
| 2015 | 3 | 3 |
| 2016 | 4 | 3 |
| 2017 | 3 | 7 |
| 2018 | 1 | 15 |
| 2019 | 4 | 10 |
| 2020 | 7 | 8 |
| 2021 | 8 | 6 |
| 2022 | 4 | 3 |
| 2023 | 5 | 4 |
| 2024 | 2 | 3 |
| 2025 | 3 | 4 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Color removal with zipgem filtration media for water and wastewater treatment17 Mar 2026US 12,577,129 B2University of Central Florida Research Foundation, Inc.
- Low density pet litters and methods of making and using such pet litters19 Aug 2025US 12,389,875 B2Societe des Produits Nestle S. A.
- Filter aids for non-aqueous liquids22 Apr 2025US 12,281,265 B2Imerys USA, Inc.
- Polymer matrix composites comprising functional particles and methods of making the same8 Apr 2025US 12,269,011 B23M Innovative Properties Company
- Neutralizing absorbent for decontaminating leaked chemical substance, method of preparing the same, and neutralizer filled with the same3 Dec 2024US 12,157,105 B2GTScien Co., Ltd.
- Filtration media for color removal in water25 Jun 2026US 2026/0176168 A1University of Central Florida Research Foundation, Inc.
- 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
- Adsorbent composition with improved filtration behavior20 Nov 2025US 2025/0354070 A1Clariant International Ltd.
- Slurry treatment of produced water7 Aug 2025US 2025/0250189 A1ChampionX LLC
Most cited
By later US patents
- Sorbents for the oxidation and removal of mercury135US 7,435,286 B2Energy & Environmental Research Center Foundation · 2008
- Microporous filter media, filtration systems containing same, and methods of making and using114US 6,630,016 B2Koslow Technologies Corporation · 2003
- Process for converting triglycerides to hydrocarbons75US 7,550,634 B2ConocoPhillips Company · 2009
- Molecular separation column and use thereof58US 4,512,897 AAMF Incorporated · 1985
- Gas purification45US 4,201,751 A1980