Description
Class C08B : POLYSACCHARIDES; DERIVATIVES THEREOF
Subclass 1/04: Preparatory treatment of cellulose for making derivatives thereof Rendering cellulose suitable for esterification for the preparation of cellulose nitrate
C08B 1/04
Sub-Class
Stats
- 2 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- 2 Total Patent Owners
- 14 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 9057821 | Method of making a contact lens | Oct 12, 10 | Jun 16, 15 | COOPERVISION INTERNATIONAL HOLDING COMPANY, LP |
| 8871743 | Bacterial cellulose composite with capsules embedded therein and preparation thereof | Aug 17, 11 | Oct 28, 14 | FOOD INDUSTRY RESEARCH AND DEVELOPMENT INSTITUTE |
Recent Publications
Not Available
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 47 Months (last 2 years Issuances)
- 47 Months (last 5 years Issuances)