DM

David J. Margraf

AL Alcor: 1 patents #1 of 2Top 50%
📍 New Braunfels, TX: #3 of 9 inventorsTop 35%
🗺 Texas: #885 of 4,134 inventorsTop 25%
Overall (1989): #122,454 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4799378 Piezoelectric viscometer Joseph L. Portman, Jr. 1989-01-24