C08B 5/14
Cellulose sulfate
C08B5/14 (Cellulose sulfate) appears on 47 US grants and 58 published applications in this corpus.
Search patents in C08B- Granted patents
- 47
- Published applications
- 58
- Assignees
- 51
- Inventors
- 154
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 5 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 1 | 3 |
| 2011 | 1 | 1 |
| 2012 | 3 | 0 |
| 2013 | 0 | 2 |
| 2014 | 3 | 2 |
| 2015 | 2 | 1 |
| 2016 | 2 | 3 |
| 2017 | 1 | 1 |
| 2018 | 1 | 2 |
| 2019 | 1 | 3 |
| 2020 | 1 | 2 |
| 2021 | 1 | 7 |
| 2022 | 3 | 5 |
| 2023 | 4 | 4 |
| 2024 | 2 | 4 |
| 2025 | 0 | 4 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fibrous cellulose, fibrous cellulose dispersion, and fibrous cellulose production method16 Jun 2026US 12,655,233 B2Oji Holdings Corporation
- Fine fibrous cellulose, dispersed solution, sheet, laminated sheet, laminate, and method for producing fine fibrous cellulose17 Feb 2026US 12,553,185 B2Oji Holdings Corporation
- Sulfate ester modified cellulose nanofibers and method for producing cellulose nanofibers10 Sep 2024US 12,084,525 B2Yokogawa Electric Corporation
- Sulfonated pulp fibers, derivative pulp, sulfonated fine cellulose fibers, method for producing sulfonated fine cellulose fibers, and method for producing sulfonated pulp fibers30 Jan 2024US 11,884,754 B2Marusumi Paper Co., Ltd.
- Cellulose derivatives12 Dec 2023US 11,840,585 B2Betulium Oy
- Thiol-functionalized cellulose nanocrystals for applications in rubber30 Jul 2026US 2026/0217950 A1Compagnie Generale Des Etablissements Michelin
- Cellulose fine fiber composition, aqueous dispersion of cellulose fine fiber, polymer composition, molded article and method for producing cellulose fine fiber composition23 Jul 2026US 2026/0209392 A1Yokogawa Electric Corporation
- Fine fibrous cellulose, dispersed solution, sheet, laminated sheet, laminate, and method for producing fine fibrous cellulose9 Jul 2026US 2026/0193842 A1Oji Holdings Corporation
- Synthesis and characterization of glycosaminoglycan mimetic variants to promote chondrogenesis4 Jun 2026US 2026/0151533 A1New Jersey Institute of Technology
- Direct production of sulfated cellulose nanofibrils14 Aug 2025US 2025/0257498 A1The Regents of the University of California
Most cited
By later US patents
- Sulfonated polymers and method of sulfonating polymers46US 5,798,078 AKimberly-Clark Worldwide, Inc. · 1998
- Sulfonated polymers40US 6,114,407 AKimberly-Clark Worldwide, Inc. · 2000
- Sulphated ion exchanger and method for preparation thereof36US 4,178,439 ADevelopment Finance Corporation of New Zealand · 1979
- Superabsorbent polymer18US 6,500,947 B1Weyerhaeuser Company · 2002
- Method for preparation of sulfated polysaccharides by treating the polysaccharide with a reducing agent before sulfation17US 4,814,437 APharmacia Corporation · 1989