SP

Stephen R. Powers

3M: 6 patents #2,536 of 11,543Top 25%
Overall (All Time): #894,040 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4943517 Imaging system Peter J. Finn, Michael G. Fisher 1990-07-24
4824770 Continuous tone color imaging using laser or light emitting diode sources Jonathan P. Kitchin, Keith A. Penfound, Peter J. Finn 1989-04-25
4818663 Photographic materials and color proofing system Thomas D. G. Hellings 1989-04-04
4816378 Imaging system Peter J. Finn, Michael G. Fisher 1989-03-28
4814827 Photographic color proofing apparatus Jonathan P. Kitchin, Keith A. Penfound, Peter J. Finn, Michael G. Fisher 1989-03-21
4705745 Photographic materials and color proofing system Jonathan P. Kitchin, Keith A. Penfound, Peter J. Finn, Michael G. Fisher 1987-11-10