C01B 17/665
Stabilisation by additives subsequent to preparation
Official title: {Stabilisation by additives subsequent to preparation; Dust prevention by additives}
C01B17/665 (Stabilisation by additives subsequent to preparation) appears on 14 US grants and 2 published applications in this corpus.
Search patents in C01B- Granted patents
- 14
- Published applications
- 2
- Assignees
- 7
- Inventors
- 29
- Latest grant
- 1 Dec 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 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 | 0 |
| 2007 | 0 | 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 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Stabilization of sodium dithionite by means of various additives1 Dec 2020US 10,850,982 B2BASF SE
- Phosphate-free reduction bleaching formulation20 Aug 1996US 5,547,475 ACiba-Geigy Corporation
- Stabilized sodium dithionite22 Mar 1994US 5,296,210 AHoechst Celanese Corporation
- Method for stabilizing sodium dithionite19 May 1992US 5,114,698 AHoechst Celanese Corporation
- Alkali metal hydrosulfite solutions9 Apr 1991US 5,006,327 AOlin Corporation
Most cited
By later US patents
- Stabilized sodium dithionite solutions15US 3,985,674 AVirginia Chemicals Inc. · 1976
- Process for manufacture of stable sodium dithionite slurries14US 4,283,303 AVirginia Chemicals Inc. · 1981
- Sodium hydrosulfite slurries13US 4,534,954 AVirginia Chemicals Inc. · 1985
- Stabilized solutions of sodium dithionite10US 4,100,098 AOlin Corporation · 1978
- Stabilized water-containing sodium dithionite formulations which have been rendered alkaline7US 4,676,961 ABASF SE · 1987