Chih Ming Hwa

Person

Arlington Heights, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method for inhibition of oxygen corrosion in aqueous systems by the...
- Patent number 5,830,383
- Issue date Nov 3, 1998
- BetzDearborn Inc.
- Brian Greaves
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for inhibition of oxygen corrosion in aqueous systems by the...
- Patent number 5,587,109
- Issue date Dec 24, 1996
- W. R. Grace & Co.-Conn.
- Brian Greaves
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of scavenging oxygen in aqueous systems
- Patent number 5,244,600
- Issue date Sep 14, 1993
- W. R. Grace & Co.-Conn.
- Dionisio G. Cuisia
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of dispersing iron
- Patent number 5,183,574
- Issue date Feb 2, 1993
- W. R. Grace & Co.-Conn.
- Chih M. Hwa
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Composition and method for scavenging oxygen
- Patent number 5,176,849
- Issue date Jan 5, 1993
- W. R. Grace & Co.-Conn.
- Chih M. Hwa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Control of corrosion in aqueous systems using certain phosphonometh...
- Patent number 5,167,866
- Issue date Dec 1, 1992
- W. R. Grace & Co.-Conn.
- Chih M. Hwa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Control of scale in aqueous systems using certain phosphonomethyl a...
- Patent number 5,096,595
- Issue date Mar 17, 1992
- W. R. Grace & Co.-Conn.
- Chih M. Hwa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Control of scale in aqueous systems using certain phosphonomethyl a...
- Patent number 5,069,798
- Issue date Dec 3, 1991
- W. R. Grace & Co.-Conn.
- Chih M. Hwa
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
N,N-bis-phosphonomethyl taurine N-oxide and water-soluble salts the...
- Patent number 5,051,532
- Issue date Sep 24, 1991
- W. R. Grace & Co.-Conn.
- Chih M. Hwa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Control of corrosion in aqueous systems using certain phosphonometh...
- Patent number 5,019,343
- Issue date May 28, 1991
- W. R. Grace & Co.-Conn.
- Chih M. Hwa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Control of corrosion in aqueous systems
- Patent number 4,980,128
- Issue date Dec 25, 1990
- W. R. Grace & Co.-Conn.
- Dionisio G. Cuisia
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
4-phosphonomethyl-2-hydroxy-2-oxo-1,4,2-oxazaphosphorinane N-oxide...
- Patent number 4,977,292
- Issue date Dec 11, 1990
- W. R. Grace & Co.-Conn.
- Chih M. Hwa
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Ethoxylated N,N-bis-phosphonomethyl 2-(hydroxy)ethylamine N-oxides...
- Patent number 4,973,744
- Issue date Nov 27, 1990
- W. R. Grace & Co.-Conn.
- Chih M. Hwa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Control of corrosion in aqueous systems
- Patent number 4,847,001
- Issue date Jul 11, 1989
- W. R. Grace & Co.-Conn.
- Dionisio G. Cuisia
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of inhibiting the deposition of scale in an aqueous system
- Patent number 4,680,125
- Issue date Jul 14, 1987
- W. R. Grace & Co.
- Dionisio G. Cuisia
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Anti-corrosion composition
- Patent number 4,649,025
- Issue date Mar 10, 1987
- W. R. Grace & Co.
- Chih M. Hwa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for inhibiting scale
- Patent number 4,631,131
- Issue date Dec 23, 1986
- R. W. Grace & Co.
- Dionisio G. Cuisia
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Scale inhibiting composition
- Patent number 4,609,483
- Issue date Sep 2, 1986
- W. R. Grace & Co.
- Dionisio G. Cuisia
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Composition and method for inhibiting scale
- Patent number 4,600,524
- Issue date Jul 15, 1986
- W. R. Grace & Co.
- Dionisio G. Cuisia
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Composition and method for inhibiting scale
- Patent number 4,581,145
- Issue date Apr 8, 1986
- Dearborn Chemical Company
- Dionisio G. Cuisia
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Composition and method for inhibiting corrosion
- Patent number 4,350,606
- Issue date Sep 21, 1982
- Dearborn Chemical Company
- Dionisio G. Cuisia
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Scale inhibition
- Patent number 4,306,991
- Issue date Dec 22, 1981
- Chemed Corporation
- Chih M. Hwa
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Scale inhibition
- Patent number 4,255,259
- Issue date Mar 10, 1981
- Chemed Corporation
- Chih M. Hwa
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Fireside treating compositions
- Patent number 4,190,421
- Issue date Feb 26, 1980
- Chemed Corporation
- Chih M. Hwa
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Azole-phosphate corrosion inhibiting composition and method
- Patent number 4,134,959
- Issue date Jan 16, 1979
- Chemed Corporation
- Russell O. Menke
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Composition and method of inhibiting corrosion
- Patent number 4,101,441
- Issue date Jul 18, 1978
- Chemed Corporation
- Chih Ming Hwa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Corrosion inhibition
- Patent number 4,098,720
- Issue date Jul 4, 1978
- Chemed Corporation
- Chih M. Hwa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Boiler water treatment
- Patent number 4,067,690
- Issue date Jan 10, 1978
- Chemed Corporation
- Dionisio G. Cuisia
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Corrosion inhibition
- Patent number 4,066,398
- Issue date Jan 3, 1978
- Chemed Corporation
- Chih Ming Hwa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of inhibiting scale
- Patent number 4,048,066
- Issue date Sep 13, 1977
- Chemed Corporation
- Dionisio Guerrero Cuisia
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Chih Ming Hwa

Person

Patents Grantslast 30 patents

Method for inhibition of oxygen corrosion in aqueous systems by the...

Method for inhibition of oxygen corrosion in aqueous systems by the...

Method of scavenging oxygen in aqueous systems

Method of dispersing iron

Composition and method for scavenging oxygen

Control of corrosion in aqueous systems using certain phosphonometh...

Control of scale in aqueous systems using certain phosphonomethyl a...

Control of scale in aqueous systems using certain phosphonomethyl a...

N,N-bis-phosphonomethyl taurine N-oxide and water-soluble salts the...

Control of corrosion in aqueous systems using certain phosphonometh...

Control of corrosion in aqueous systems

4-phosphonomethyl-2-hydroxy-2-oxo-1,4,2-oxazaphosphorinane N-oxide...

Ethoxylated N,N-bis-phosphonomethyl 2-(hydroxy)ethylamine N-oxides...

Control of corrosion in aqueous systems

Method of inhibiting the deposition of scale in an aqueous system

Anti-corrosion composition

Method for inhibiting scale

Scale inhibiting composition

Composition and method for inhibiting scale

Composition and method for inhibiting scale

Composition and method for inhibiting corrosion

Scale inhibition

Scale inhibition

Fireside treating compositions

Azole-phosphate corrosion inhibiting composition and method

Composition and method of inhibiting corrosion

Corrosion inhibition

Boiler water treatment

Corrosion inhibition

Method of inhibiting scale