Christine A. Costello

Person

Coraopolis, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Polymers for use as filtration control aids in drilling muds
- Patent number 4,726,906
- Issue date Feb 23, 1988
- Calgon Corporation
- Shih-Ruey T. Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymers for use as filtration control aids in drilling muds
- Patent number 4,652,623
- Issue date Mar 24, 1987
- Calgon Corporation
- Shih-Ruey T. Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyampholyte polymer
- Patent number 4,533,708
- Issue date Aug 6, 1985
- Calgon Corporation
- Christine A. Costello
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Use of polyampholytes to enhance oil and/or gas recovery
- Patent number 4,484,631
- Issue date Nov 27, 1984
- Calgon Corporation
- Nancy S. Sherwood
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Use of a carboxylic functional polyampholyte to inhibit the precipi...
- Patent number 4,460,477
- Issue date Jul 17, 1984
- Calgon Corporation
- Christine A. Costello
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Ampholytic polymers for use as filtration control aids in drilling...
- Patent number 4,455,240
- Issue date Jun 19, 1984
- Calgon Corporation
- Christine A. Costello
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Christine A. Costello

Person

Patents Grantslast 30 patents

Polymers for use as filtration control aids in drilling muds

Polymers for use as filtration control aids in drilling muds

Polyampholyte polymer

Use of polyampholytes to enhance oil and/or gas recovery

Use of a carboxylic functional polyampholyte to inhibit the precipi...

Ampholytic polymers for use as filtration control aids in drilling...