Gerardo Chapa

Follow

Person

Grayslake, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Methods and compositions for preparing rigid foams with non-chlorof...
- Patent number 5,496,869
- Issue date Mar 5, 1996
- Stepan Company
- Steve Williams
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Methods and compositions for preparing rigid foams with non-chlorof...
- Patent number 5,464,561
- Issue date Nov 7, 1995
- Stepan Company
- Steve Williams
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Methods and compositions for preparing rigid forms with non-chlorof...
- Patent number 5,407,967
- Issue date Apr 18, 1995
- Stepan Company
- Steve Williams
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...