KL

Kenneth Wayne Leffew

EA E.I. Du Pont De Nemours And: 2 patents #34 of 533Top 7%
📍 Kennett Square, PA: #7 of 28 inventorsTop 25%
🗺 Pennsylvania: #389 of 4,367 inventorsTop 9%
Overall (1997): #33,521 of 185,788Top 20%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5670606 Crystalline form of poly(ethylene 2,6-naphthalate) and a method for its production Jan M. Stouffer, Elwood Neal Blanchard 1997-09-23
5633018 Apparatus for forming crystalline polymer pellets Jan M. Stouffer, Elwood Neal Blanchard 1997-05-27