C01B 17/904
By ion-exchange
Official title: {by ion-exchange}
C01B17/904 (By ion-exchange) appears on 3 US grants and 2 published applications in this corpus.
Search patents in C01B- Granted patents
- 3
- Published applications
- 2
- Assignees
- 5
- Inventors
- 14
- Latest grant
- 11 Aug 1998
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fixed-resin bed technologies for the treatment of the chlorine dioxide generator effluent and feeds stream11 Aug 1998US 5,792,441 AEco-Tec Limited
- Process for the recovery of waste sulphuric acid18 Feb 1997US 5,603,839 ACecebe Technologies Inc.
- Method for purification of sulfuric acid solution17 Dec 1985US 4,559,216 AUnitika Ltd.
Most cited
By later US patents
- Method for purification of sulfuric acid solution27US 4,559,216 AUnitika Ltd. · 1985
- Fixed-resin bed technologies for the treatment of the chlorine dioxide generator effluent and feeds stream13US 5,792,441 AEco-Tec Limited · 1998
- Process for the recovery of waste sulphuric acid3US 5,603,839 ACecebe Technologies Inc. · 1997