C01B 11/145
Separation
Official title: {Separation; Crystallisation; Purification, After-treatment; Stabilisation by additives}
C01B11/145 (Separation) appears on 20 US grants and 2 published applications in this corpus.
Search patents in C01B- Granted patents
- 20
- Published applications
- 2
- Assignees
- 12
- Inventors
- 28
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 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 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Anti-caking composition of sodium chlorate29 Sep 2026US 12,747,158 B2Nouryon Chemicals International B. V.
- Perchlorate removal from sodium chlorate process31 Jul 2007US 7,250,144 B2Tronox LLC
- Purification of aqueous alkali metal chlorate solutions25 Apr 1995US 5,409,680 AOlin Corporation
- Method for removing impurities from an alkali metal chlorate process18 Oct 1994US 5,356,610 AEka Nobel AB
- Method for separating impurities from an aqueous alkali metal chlorate electrolyte27 Sep 1994US 5,350,495 AEka Nobel AB
Most cited
By later US patents
- Chromate removal by precipitation13US 4,086,150 AHuron Chemicals Limited · 1978
- Selective chromate removal from a chlorate solution13US 4,268,486 AOlin Corporation · 1981
- Sulfate removal from alkali metal chlorate solutions12US 4,636,376 APPG Industries, Inc. · 1987
- Chromate removal from concentrated chlorate solution by chemical precipitation10US 4,259,297 AOlin Corporation · 1981
- Process and solvent for extraction of the chromates present in an aqueous solution10US 4,446,026 AKrebs & Cie · 1984