WS

Walter John Simmons

EA E.I. Du Pont De Nemours And: 2 patents #79 of 587Top 15%
📍 Martinsburg, WV: #1 of 6 inventorsTop 20%
🗺 West Virginia: #23 of 230 inventorsTop 10%
Overall (2003): #37,297 of 273,478Top 15%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6545068 Grouting compositions Domenic J. Barsotti, Phillip Edwin Gramlich, Jr. 2003-04-08
6541545 Grouting compositions Domenic J. Barsotti 2003-04-01