David R. Hart

Follow

Person

Birmingham, AL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the production of phenolic complexes of hexamethylenete...
- Patent number 4,069,220
- Issue date Jan 17, 1978
- Jim Walter Resources, Inc.
- Henry Philip Orem
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substrate reinforced rubber structure and compound for forming same
- Patent number 4,014,827
- Issue date Mar 29, 1977
- United States Pipe and Foundry Company
- David R. Hart
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing salts of hexamethylenetetramine
- Patent number 3,936,451
- Issue date Feb 3, 1976
- United States Pipe and Foundry Company
- Henry Philip Orem
- C07 - ORGANIC CHEMISTRY