PD

Paul R. Darkes

PA Phonak Ag: 1 patents #110 of 208Top 55%
RP Rhone-Poulenc Rorer Pharmaceuticals: 1 patents #68 of 155Top 45%
WR William H. Rorer: 1 patents #23 of 36Top 65%
📍 Norristown, PA: #156 of 488 inventorsTop 35%
🗺 Pennsylvania: #23,606 of 74,527 inventorsTop 35%
Overall (All Time): #1,515,216 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D722168 Hearing aid 2015-02-03
5162336 Tetrahydro-pyrido-indoles as cholecystokinin and gastrin antagonists Bruce F. Molino, William R. Ewing 1992-11-10
4267388 Process for producing ethynylbenzenes Henry F. Campbell, George H. Douglas 1981-05-12