Charles Y. Cha

Person

McMurray, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Alkylbenzotriazole compositions and the use thereof as copper and c...
- Patent number 5,746,947
- Issue date May 5, 1998
- Calgon Corporation
- Daniel P. Vanderpool
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Controlling silica/silicate deposition using phosphonate combinations
- Patent number 5,300,231
- Issue date Apr 5, 1994
- Calgon Corporation
- Charles Y. Cha
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Alkoxybenzotriazole compositions and the use thereof as copper and...
- Patent number 5,236,626
- Issue date Aug 17, 1993
- Calgon Corporation
- Daniel P. Vanderpool
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Copper and copper alloy corrosion inhibitors
- Patent number 5,219,523
- Issue date Jun 15, 1993
- Calgon Corporation
- Daniel P. Vanderpool
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Alkoxybenzotriazole compositions and the use thereof as copper and...
- Patent number 5,217,686
- Issue date Jun 8, 1993
- Calgon Corporation
- Daniel P. Vanderpool
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Phenyl mercaptotetrazole/tolyltriazole corrosion inhibiting composi...
- Patent number 5,156,769
- Issue date Oct 20, 1992
- Calgon Corporation
- Charles Y. Cha
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Carboxylic/sulfonic polymer and carboxylic/polyalkylene oxide polym...
- Patent number 4,680,135
- Issue date Jul 14, 1987
- Calgon Corporation
- Charles Y. Cha
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Carboxylic/sulfonic/polyalkylene oxide polymer for use as scale, co...
- Patent number 4,618,448
- Issue date Oct 21, 1986
- Calgon Corporation
- Charles Y. Cha
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Charles Y. Cha

Person

Patents Grantslast 30 patents

Alkylbenzotriazole compositions and the use thereof as copper and c...

Controlling silica/silicate deposition using phosphonate combinations

Alkoxybenzotriazole compositions and the use thereof as copper and...

Copper and copper alloy corrosion inhibitors

Alkoxybenzotriazole compositions and the use thereof as copper and...

Phenyl mercaptotetrazole/tolyltriazole corrosion inhibiting composi...

Carboxylic/sulfonic polymer and carboxylic/polyalkylene oxide polym...

Carboxylic/sulfonic/polyalkylene oxide polymer for use as scale, co...