DL

Douglas E. Ludwig

HI Harper International: 1 patents #6 of 18Top 35%
📍 Depew, NY: #45 of 77 inventorsTop 60%
🗺 New York: #67,335 of 115,490 inventorsTop 60%
Overall (All Time): #3,560,413 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6464493 Multi-axis rotary seal system Brian A. Polino, Carl Vander Weide, David M. Bencic, Edgard Matrak 2002-10-15