DH

Dean C. Humphrey

IBM: 2 patents #32,839 of 70,183Top 50%
Overall (All Time): #2,207,175 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6635390 Method and system for reducing particulate contamination in a pellicle air space Karen D. Badger, James J. Colelli 2003-10-21
5973771 Pupil imaging reticle for photo steppers Michael S. Hibbs, Grant N. Pealer, III, Barbara Bates Peck 1999-10-26