Norman N. Li

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Arlington Heights, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Reverse osmosis membrane with hydrogel coating
- Patent number 11,278,847
- Issue date Mar 22, 2022
- Qun Song
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
High flux reverse osmosis membrane
- Patent number 6,162,358
- Issue date Dec 19, 2000
- NL Chemicals Technologies, Inc.
- Norman N. Li
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Separation of gases by means of mixed matrix membranes
- Patent number 5,127,925
- Issue date Jul 7, 1992
- Allied-Signal Inc.
- Santi Kulprathipanja
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Separation of fluids by means of mixed matrix membranes
- Patent number 4,740,219
- Issue date Apr 26, 1988
- Allied-Signal Inc.
- Santi Kulprathipanja
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Modification of membrane surfaces with amino acid polymers
- Publication number 20220040643
- Publication date Feb 10, 2022
- NL Chemical Technology, Inc
- Qun Song
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Reverse Osmosis Membrane with Hydrogel Coating
- Publication number 20210031149
- Publication date Feb 4, 2021
- NL Chemical Technology, Inc
- Qun Song
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE