WD

Warren W. Drummond

PI Ppg Industries: 4 patents #280 of 1,216Top 25%
📍 Washington, PA: #108 of 552 inventorsTop 20%
🗺 Pennsylvania: #13,581 of 74,527 inventorsTop 20%
Overall (All Time): #886,578 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5928401 Process of making fibers with a rotary ring furnace above a circular forehearth 1999-07-27
5302175 Method of winding glass fibers 1994-04-12
4337073 Rotary forehearth 1982-06-29
4307497 Method of treating textile yarns 1981-12-29
4208000 Apparatus for advancing strand material 1980-06-17
4189110 Creel 1980-02-19