C08B 5/04
Post-esterification treatments
Official title: Post-esterification treatments {, e.g. densification of powders}, including purification
C08B5/04 (Post-esterification treatments) appears on 17 US grants and 9 published applications in this corpus.
Search patents in C08B- Granted patents
- 17
- Published applications
- 9
- Assignees
- 16
- Inventors
- 56
- Latest grant
- 2 Jan 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 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 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 2 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Methods for modifying nitrocellulose having lyophobic properties2 Jan 2018US 9,856,328 B1The United States of America as represented by the Secretary of the Army
- Non-absorbable non-digestible polymer compounds13 Aug 2013US 8,507,461 B2
- Process for the preparation of nitrocellulose solutions having a low water content5 Mar 2013US 8,388,748 B2Dow Global Technologies LLC
- Process for forming nitrocellulose films26 Jun 2007US 7,235,307 B2AST Management Inc.
- Method for producing compacted free-flowing raw materials for varnish24 May 2005US 6,896,752 B1Wolf Walsrode AG
- Cellulose fiber-containing composition and sheet22 Jul 2021US 2021/0222366 A1Oji Holdings Corporation
- Compounds6 Oct 2016US 2016/0289345 A1
- Substituted Cellulose Ester Adhesives and Methods and Articles Relating Thereto23 Jul 2015US 2015/0203723 A1Celanese Acetate LLC
- Compounds31 Jul 2014US 2014/0212457 A1
- Process for the Preparation of Nitrocellulose Solutions having a low Water Content27 May 2010US 2010/0126382 A1Dow Global Technologies LLC
Most cited
By later US patents
- Agent for separation11US 4,714,555 ADaicel Chemical Industries, Ltd. · 1987
- Nitrocellulose purification5US 4,401,809 A1983
- Process for washing a solid substance impregnated with a liquid substance4US 4,184,891 ASociete Nationale des Poudres et Explosifs · 1980
- Processes for the production of free-flowing nitrocellulose4US 4,590,019 AWolff Walsrode AG · 1986
- Process for the preparation of a storage stable low esterified nitrocellulose moistened with alcohol or water4US 5,378,826 AWolff Walsrode AG · 1995