IR

Irving B. Ruppel

CA Carborundum: 6 patents #5 of 126Top 4%
📍 Kenmore, NY: #21 of 119 inventorsTop 20%
🗺 New York: #23,203 of 115,490 inventorsTop 25%
Overall (All Time): #886,700 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5944963 Method of coating a substrate with a SiC.sub.x film William J. Keese 1999-08-31
5741403 Ceramic substrates and magnetic data storage components prepared therefrom Michael A. Tenhover 1998-04-21
5616426 Ceramic substrate with silicon carbide smoothing layer Michael A. Tenhover 1997-04-01
5441799 Porous silicon carbide Dean P. Owens 1995-08-15
5227105 Process for manufacturing ceramic tubes James L. Eucker, Robert C. Ruhl 1993-07-13
5057001 Apparatus for making ceramic tubes James L. Eucker, Robert C. Ruhl 1991-10-15