RR

Robert J. Ritchie

EA E.I. Du Pont De Nemours And: 2 patents #2,942 of 8,010Top 40%
TR The Firestone Tire & Rubber: 1 patents #111 of 233Top 50%
📍 State College, PA: #183 of 1,195 inventorsTop 20%
🗺 Pennsylvania: #13,581 of 74,527 inventorsTop 20%
Overall (All Time): #871,312 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
D606662 Feeding bottle accessory 2009-12-22
7013545 Compact duct corner installation tool 2006-03-21
D371407 Golf club head with indentations Douglas Jan 1996-07-02
4554061 Anodic electrodeposition of charged aqueous powder slurry 1985-11-19
4519884 Cathodic electrodeposition of charged aqueous powder slurry 1985-05-28
4237263 Poly(monoalkyl group containing organophosphazenes) and method for their preparation Harry R. Allcock 1980-12-02