CHIEN-PING ADRIAN KOH

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SINGAPORE, SG

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Patents Grantslast 30 patents

Information Patent Grant
Portable stain removal device
- Patent number 10,947,660
- Issue date Mar 16, 2021
- Koninklijke Philips N.V.
- Shenghuai Calvin Lin
- B08 - CLEANING

Patents Applicationslast 30 patents

Information Patent Application
PORTABLE STAIN REMOVAL DEVICE
- Publication number 20200056320
- Publication date Feb 20, 2020
- Koninklijke Philips N.V.
- SHENGHUAI CALVIN LIN
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...