Description
Class C08B : POLYSACCHARIDES; DERIVATIVES THEREOF
Subclass 3/08: Preparation of cellulose esters of organic acids of monobasic organic acids with three or more carbon atoms
C08B 3/08
Sub-Class
Stats
- 45 US PATENTS IN FORCE
- 5 US APPLICATIONS PENDING
- 12 Total Patent Owners
- 151 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12006375 | Regioselectively substituted cellulose esters | Oct 13, 22 | Jun 11, 24 | Eastman Chemical Company |
| 11939407 | Regioselectively substituted cellulose esters | Jan 26, 23 | Mar 26, 24 | Eastman Chemical Company |
| 11858887 | Linker compounds, methods of producing the same and uses thereof | Mar 21, 18 | Jan 02, 24 | Shenkar College of Engineering and Design |
| 11591429 | Grafted crosslinked cellulose | Apr 27, 21 | Feb 28, 23 | International Paper Company |
| 11591411 | Regioselectively substituted cellulose esters | Mar 28, 18 | Feb 28, 23 | Eastman Chemical Company |
| 11505622 | Regioselectively substituted cellulose esters | Mar 28, 18 | Nov 22, 22 | Eastman Chemical Company |
| 11440862 | Solvent composition, cleaning method, method of forming a coating film, heat transfer fluid, and heat cycle system | Sep 14, 20 | Sep 13, 22 | AGC Inc. |
| 11427521 | Solvent composition, cleaning method, method of forming a coating film, heat transfer fluid, and heat cycle system | Mar 04, 21 | Aug 30, 22 | AGC Inc. |
| 11253861 | Preparation of modified cellulose and its derivatives | Sep 11, 20 | Feb 22, 22 | Innotech Materials, LLC |
| 11136414 | Regioselectively substituted cellulose esters | Mar 28, 18 | Oct 05, 21 | Eastman Chemical Company |
| 10851180 | Polymer material, film, circular polarizing plate, image display apparatus, and manufacturing method for film | Oct 06, 16 | Dec 01, 20 | Kaneka Corporation |
| 10836835 | Cellulose ester optical films | Oct 28, 19 | Nov 17, 20 | Eastman Chemical Company |
| 10550202 | Hydroxyalkyl alkyl cellulose, method for producing the same, and solid preparation | Oct 02, 17 | Feb 04, 20 | Shin-Etsu Chemical Co. Ltd. |
| 10513565 | Low-substituted hydroxypropyl cellulose, production method thereof, and solid preparation | Oct 02, 17 | Dec 24, 19 | Shin-Etsu Chemical Co. Ltd. |
| 10494447 | Cellulose ester optical films | May 09, 18 | Dec 03, 19 | Eastman Chemical Company |
| 10459290 | Optical film, polarizing plate, and image display device | Jul 17, 15 | Oct 29, 19 | FUJIFILM Corporation |
| 10444618 | Method of making silver-containing dispersions | Sep 25, 17 | Oct 15, 19 | Eastman Kodak Company |
| 10297859 | All-solid-state secondary battery, solid electrolyte composition and electrode sheet for batteries used in the same, and manufacturing method of electrode sheet for batteries and all-solid-state secondary battery | Sep 22, 16 | May 21, 19 | FUJIFILM Corporation |
| 10287383 | Grafted crosslinked cellulose | Nov 18, 16 | May 14, 19 | International Paper Company |
| 9975967 | Cellulose ester optical films | Mar 01, 12 | May 22, 18 | Eastman Chemical Company |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0327,623 | Molding Material | Mar 27, 24 | Oct 03, 24 | Not available |
| 2024/0317,896 | Molding Material Production Method And Molding Material | Mar 22, 24 | Sep 26, 24 | Not available |
| 2023/0212,341 | GRAFTED CROSSLINKED CELLULOSE | Feb 27, 23 | Jul 06, 23 | International Paper Company |
| 2022/0227,892 | RECYCLE CONTENT CELLULOSE ESTER | May 22, 20 | Jul 21, 22 | Eastman Chemical Company |
| 2018/0319,957 | PREPARATION OF MODIFIED CELLULOSE AND ITS DERIVATIVES | Oct 28, 16 | Nov 08, 18 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 32 Months (last 2 years Issuances)
- 32 Months (last 5 years Issuances)