HD

Harold T. Keller, deceased

WE Westinghouse Electric: 4 patents #781 of 5,139Top 20%
📍 Pittsburgh, PA: #1,996 of 7,570 inventorsTop 30%
🗺 Pennsylvania: #19,182 of 74,527 inventorsTop 30%
Overall (All Time): #1,304,683 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4762674 Brazing sleeve having ceramic flux band and method for applying same Wenche W. Cheng, Donald R. Stoner 1988-08-09
4649492 Tube expansion process Susanta Sinha, Philip Simon Brown, Douglas G. Harman, David F. Olechovsky, Wenche W. Cheng 1987-03-10
4649493 Tube expansion apparatus Raymond P. Castner, David F. Olechovsky, Philip Simon Brown, Susanta Sinha, Wenche W. Cheng 1987-03-10
4624866 Brazing sleeve having ceramic flux band and method for applying same Wenche W. Cheng, Donald R. Stoner 1986-11-25