Richard M. Van Effen

MP Merrell Dow Pharmaceuticals: 2 patents #107 of 237Top 50%

🗺 Michigan: #35,034 of 86,293 inventorsTop 45%

Overall (All Time): #2,332,797 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4861443	Process for preparing 4,4'-isopropylidenedithio-bis-(2,6-di-tertiarybutylphenol) by electrocatalysis	—	1989-08-29
4772363	Process for preparing 2,6-di-tertiarybutyl-4-mercaptophenol by electrocatalysis	—	1988-09-20