Description
Class C08B : POLYSACCHARIDES; DERIVATIVES THEREOF
Subclass 3/22: Preparation of cellulose esters of organic acids Post-esterification treatments, including purification
C08B 3/22
Sub-Class
Stats
- 30 US PATENTS IN FORCE
- 1 US APPLICATIONS PENDING
- 9 Total Patent Owners
- 128 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11174324 | Manufacture of hydrophobized nanocellulose intermediate as well as hydrophobized nanocellulose | Jun 18, 18 | Nov 16, 21 | FINECELL SWEDEN AB |
| 11091566 | Methods for the production of biopolymers with defined average molecular weight | Feb 06, 15 | Aug 17, 21 | MedSkin Solutions Dr. Suwelack AG |
| 10851179 | Polysaccharide derivatives and cross-metathesis processes for preparing them | Mar 16, 15 | Dec 01, 20 | Virginia Tech Intellectual Properties, Inc. |
| 10704197 | Nanocellulose | Nov 21, 14 | Jul 07, 20 | THE UNIVERSITY OF QUEENSLAND |
| 10543455 | Gas separation membrane, gas separation module, gas separation apparatus, gas separation method, and method for producing asymmetric gas separation membrane | Aug 07, 17 | Jan 28, 20 | FUJIFILM Corporation |
| 10293515 | Coloration of acetylated wood | Jul 19, 17 | May 21, 19 | ELECTRONIC FOR IMAGING, INC. |
| 10208404 | Micro and nanofibers of polysaccharide based materials | Sep 09, 15 | Feb 19, 19 | Clarcor Inc. |
| 9512238 | Cellulose resin and method for producing the same | Nov 14, 14 | Dec 06, 16 | NEC CORPORATION |
| 9487646 | Cellulose resin composition | Jul 06, 11 | Nov 08, 16 | NEC CORPORATION |
| 9382335 | Process for producing cellulose derivative and cellulose derivative | May 31, 13 | Jul 05, 16 | NEC CORPORATION |
| 9340625 | Cellulose resin | Jul 06, 11 | May 17, 16 | NEC CORPORATION |
| 9243072 | Cellulose interpolymers and method of oxidation | Dec 27, 12 | Jan 26, 16 | EASTMAN CHEMICAL COMPANY |
| 9167830 | Substituted cellulose acetates and uses thereof | Jan 27, 12 | Oct 27, 15 | ACETATE INTERNATIONAL LLC |
| 9156918 | Treatment of cellulose esters | Apr 18, 12 | Oct 13, 15 | EASTMAN CHEMICAL COMPANY |
| 9150665 | Cellulose interpolymers and method of oxidation | Dec 27, 12 | Oct 06, 15 | EASTMAN CHEMICAL COMPANY |
| 9151883 | Cellulose acylate film, retardation film, polarizer and liquid-crystal display device | Jul 09, 14 | Oct 06, 15 | FUJIFILM CORPORATION |
| 9139660 | Acetylation of cellulose in densified gas | Aug 20, 12 | Sep 22, 15 | ACETATE INTERNATIONAL LLC |
| 9040683 | Cellulose interpolymers and method of oxidation | Dec 27, 12 | May 26, 15 | EASTMAN CHEMICAL COMPANY |
| 9040684 | Cellulose interpolymers and method of oxidation | Dec 27, 12 | May 26, 15 | EASTMAN CHEMICAL COMPANY |
| 9040685 | Cellulose interpolymers and method of oxidation | Dec 27, 12 | May 26, 15 | EASTMAN CHEMICAL COMPANY |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2019/0330,380 | SYSTEMS AND METHODS FOR SEPARATING MIXTURES COMPRISING FLUOROCARBOXYLIC AND CARBOXYLIC ACIDS | Dec 08, 16 | Oct 31, 19 | Eastman Chemical Company |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 33 Months (last 2 years Issuances)
- 33 Months (last 5 years Issuances)