RC

Roger T. Clark

PE Pennwalt: 1 patents #16 of 47Top 35%
🗺 Pennsylvania: #852 of 3,759 inventorsTop 25%
Overall (1989): #64,148 of 140,708Top 50%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4827031 Process for preparing amines from olefins with ammonium halide catalysts David M. Gardner, Paul J. McElligott, Jr. 1989-05-02