B01J 39/14
Base exchange silicates
Official title: Base exchange silicates, e.g. zeolites
B01J39/14 (Base exchange silicates) appears on 170 US grants and 164 published applications in this corpus.
Search patents in B01J- Granted patents
- 170
- Published applications
- 164
- Assignees
- 120
- Inventors
- 429
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 5 | 0 |
| 1998 | 1 | 0 |
| 1999 | 9 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 4 |
| 2003 | 3 | 2 |
| 2004 | 3 | 8 |
| 2005 | 3 | 3 |
| 2006 | 3 | 7 |
| 2007 | 2 | 2 |
| 2008 | 5 | 3 |
| 2009 | 2 | 1 |
| 2010 | 4 | 2 |
| 2011 | 1 | 7 |
| 2012 | 6 | 11 |
| 2013 | 3 | 5 |
| 2014 | 8 | 16 |
| 2015 | 2 | 18 |
| 2016 | 4 | 12 |
| 2017 | 13 | 9 |
| 2018 | 8 | 12 |
| 2019 | 12 | 7 |
| 2020 | 10 | 4 |
| 2021 | 7 | 5 |
| 2022 | 3 | 10 |
| 2023 | 4 | 4 |
| 2024 | 4 | 3 |
| 2025 | 1 | 7 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lithium ion adsorbents19 May 2026US 12,629,657 B2Empower Innovation & Technology LLC
- Extended use zirconium silicate compositions and methods of use thereof24 Mar 2026US 12,582,673 B2Zs Pharma, Inc.
- Adsorbent, its preparation and use3 Feb 2026US 12,539,502 B2City University of Hong Kong
- Electrolyte treatment system and method8 Jul 2025US 12,350,643 B2Pacific Industrial Development Corporation
- Compositions and methods to remove ammonia in freshwater and saltwater fish storage systems17 Dec 2024US 12,168,619 B2University of South Florida
- Lithium ion adsorbents27 Aug 2026US 2026/0249268 A1Empower Innovation & Technology LLC
- Microporous zirconium silicate for the treatment of hyperkalemia12 Feb 2026US 2026/0041709 A1
- Sorbent with gas-permeable and hydrophobic membrane18 Dec 2025US 2025/0381561 A1University of Pittsburgh—Of the Commonwealth System of Higher Education
- System and method for treatment of ammonia in a feed water stream24 Jul 2025US 2025/0236540 A1Fluence Water Products and Innovation Ltd
- Inorganic ion exchange media and use and method of manufacturing the same19 Jun 2025US 2025/0196123 A1Surfatas, LLC
Most cited
By later US patents
- Detergent compositions containing sodium aluminosilicate builders70US 4,605,509 AThe Procter & Gamble Company · 1986
- Zeolite bed leach septic system and method for wastewater treatment62US 6,531,063 B12003
- Removal of heavy metals, especially lead, from aqueous systems containing competing ions utilizing amorphous tin and titanium silicates42US 5,053,139 AEngelhard Corporation · 1991
- Detergent composition41US 4,274,975 AThe Procter & Gamble Company · 1981
- Process for the purification of a solution of lithium salts contaminated by metallic cations and use of this process in the production of zeolites exchanged with lithium38US 5,919,287 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1999