Qianqian Zhang

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Kingsport, TN, US

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Patents Grantslast 30 patents

Information Patent Grant
Regioselectively substituted cellulose ester based C+ compensation...
- Patent number 12,252,603
- Issue date Mar 18, 2025
- Eastman Chemical Company
- Qianqian Zhang
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
HEAD-UP DISPLAY SYSTEM WITH HALF WAVEPLATE OPTIMIZED FOR BETTER PER...
- Publication number 20230305207
- Publication date Sep 28, 2023
- Eastman Chemical Company
- QIANQIAN ZHANG
- G02 - OPTICS
Information Patent Application
REGIOSELECTIVELY SUBSTITUTED CELLULOSE ESTER BASED C+ COMPENSATION...
- Publication number 20230138841
- Publication date May 4, 2023
- Eastman Chemical Company
- Qianqian Zhang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
REGIOSELECTIVELY SUBSTITUTED CELLULOSE ESTER BASED NEGATIVE BIREFRI...
- Publication number 20230074167
- Publication date Mar 9, 2023
- Eastman Chemical Company
- Qianqian Zhang
- G02 - OPTICS