AD

August P. Doering

AH American Hoechst: 1 patents #61 of 142Top 45%
Overall (All Time): #4,083,573 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4250242 Uniform exposure of positive-acting diazo type materials through support 1981-02-10