Alan S. MacGregor

EM Environmental Resources Management: 1 patents #3 of 6Top 50%

📍 Chadds Ford, PA: #155 of 258 inventorsTop 65%

🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%

Overall (All Time): #4,062,929 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4422943	Method for precipitation of heavy metal sulfides	Ronald G. Fender	1983-12-27