Kai Hwa Chew

Follow

Person

Singapore, SG

People

Patents Grantslast 30 patents

Information Patent Grant
Methods of purifying nanostructures
- Patent number 10,843,273
- Issue date Nov 24, 2020
- Quantum Chemical Technologies (Singapore) Pte Ltd
- Kai Hwa Chew
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Solders
- Patent number 7,472,817
- Issue date Jan 6, 2009
- Quantum Chemical Technologies (Singapore) Pte Ltd
- Kai Hwa Chew
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Solders
- Patent number 6,843,862
- Issue date Jan 18, 2005
- Quantum Chemical Technologies (Singapore) Pte Ltd
- Kai Hwa Chew
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
METHODS OF PURIFYING NANOSTRUCTURES
- Publication number 20180354039
- Publication date Dec 13, 2018
- Quantum Chemical Technologies (Singapore) Pte. Ltd
- Kai Hwa CHEW
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Solders
- Publication number 20070125834
- Publication date Jun 7, 2007
- Quantum Chemical Technologies (Singapore) Pte. Ltd
- Kai Hwa CHEW
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Solders
- Publication number 20060088439
- Publication date Apr 27, 2006
- Quantum Chemical Technologies (Singapore) Pte. Ltd
- Kai Hwa Chew
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Solders
- Publication number 20020057986
- Publication date May 16, 2002
- Quantum Chemical Technologies (Singapore) Pte Ltd.
- Kai Hwa Chew
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...