JC

Joe C. St. Clair

IBM: 4 patents #13 of 1,444Top 1%
📍 Round Rock, TX: #1 of 27 inventorsTop 4%
🗺 Texas: #94 of 4,134 inventorsTop 3%
Overall (1989): #4,736 of 140,708Top 4%
4
Patents 1989

Issued Patents 1989

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4870406 High resolution graphics display adapter Satish Chandra Gupta, Leon Lumelsky, Robert L. Mansfield, Hector G. Romero, Jr., Marc Segre +2 more 1989-09-26
4837563 Graphics display system function circuit Robert L. Mansfield, Alexander K. Spencer 1989-06-06
4823286 Pixel data path for high performance raster displays with all-point-addressable frame buffers Leon Lumelsky, Robert L. Mansfield, Marc Segre, Alexander K. Spencer 1989-04-18
4808986 Graphics display system with memory array access Robert L. Mansfield, Marc Segre, Alexander K. Spencer 1989-02-28