Shuk Kwan Mak

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Hong Kong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Alloy with interference thin film and method for making the same
- Patent number 12,077,839
- Issue date Sep 3, 2024
- CHOW SANG SANG JEWELLERY COMPANY LIMITED
- Wai Kei Cheung
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Amorphous alloy
- Patent number 12,054,819
- Issue date Aug 6, 2024
- CHOW SANG SANG JEWELLERY COMPANY LIMITED
- Wai Kei Cheung
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Jewelry alloy
- Patent number 11,268,174
- Issue date Mar 8, 2022
- CHOW SANG SANG JEWELLERY COMPANY LIMITED
- Wai Kei Cheung
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Platinum electrodeposition bath and uses thereof
- Patent number 10,612,149
- Issue date Apr 7, 2020
- CHOW SANG SANG JEWELLERY COMPANY LIMITED
- Wai Kei Cheung
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR

Patents Applicationslast 30 patents

Information Patent Application
AMORPHOUS ALLOY
- Publication number 20250092499
- Publication date Mar 20, 2025
- Chow Sang Sang Jewellery Company Limited
- Wai Kei CHEUNG
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
FUNCTIONALIZED TRIPLET EMITTERS FOR ELECTRO-LUMINESCENT DEVICES
- Publication number 20140364611
- Publication date Dec 11, 2014
- CYNORA GMBH
- Shuk K. Mak
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
FUNCTIONALIZED TRIPLET EMITTERS FOR ELECTRO-LUMINESCENT DEVICES
- Publication number 20120326103
- Publication date Dec 27, 2012
- Shuk Kwan Mak
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...