RS

Roger Keith Siemionko

EA E.I. Du Pont De Nemours And: 2 patents #34 of 533Top 7%
📍 Newark, DE: #14 of 124 inventorsTop 15%
🗺 Delaware: #51 of 552 inventorsTop 10%
Overall (1997): #25,476 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5672307 Flash spinning process Hyunkook Shin 1997-09-30
5643525 Process for improving electrostatic charging of plexifilaments David Jackson McGinty, Ervin Townsend Powers, Jr., Hyunkook Shin, David Martin Taylor 1997-07-01