DS

David D. Steppan

MI Miles: 3 patents #6 of 173Top 4%
📍 Gibsonia, PA: #1 of 26 inventorsTop 4%
🗺 Pennsylvania: #176 of 4,234 inventorsTop 5%
Overall (1994): #13,982 of 165,921Top 9%
3
Patents 1994

Issued Patents 1994

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5350778 Polyisocyanate based upon 4,4'- and 2,4'-diphenylmethane diisocyanates and use thereof in a rim process William E. Slack, Charles G. Beckley 1994-09-27
5324773 Stabilization of RIM systems containing acidic additives Robson Mafoti, Michael Hurley, Albert Magnotta 1994-06-28
5277862 Resin transfer molding process Robson Mafoti 1994-01-11