Qiu DU

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Nantong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Front curve design method for preparing resin lens with high refrac...
- Patent number 12,189,215
- Issue date Jan 7, 2025
- Jiangsu Conant Optical Co., Ltd.
- Chuanbao Wang
- G02 - OPTICS
Information Patent Grant
Dyeable 1.74 resin lens and preparation method thereof
- Patent number 11,772,341
- Issue date Oct 3, 2023
- Jiangsu Conant Optical Co., Ltd.
- Chuanbao Wang
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
FRONT CURVE DESIGN METHOD FOR PREPARING RESIN LENS WITH HIGH REFRAC...
- Publication number 20230070136
- Publication date Mar 9, 2023
- Jiangsu Conant Optical Co., Ltd.
- Chuanbao WANG
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
DYEABLE 1.74 RESIN LENS AND PREPARATION METHOD THEREOF
- Publication number 20220317336
- Publication date Oct 6, 2022
- Jiangsu Conant Optical Co., Ltd.
- Chuanbao WANG
- G02 - OPTICS