MS

Mark A. Spak

HC Hoechst Celanese: 8 patents #75 of 871Top 9%
CL Clariant Finance (Bvi) Limited: 3 patents #105 of 535Top 20%
RC Rca: 2 patents #592 of 1,739Top 35%
CL Clariant: 1 patents #173 of 485Top 40%
Overall (All Time): #356,001 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6852465 Photoresist composition for imaging thick films Ralph R. Dammel, Stephen Meyer 2005-02-08
6372414 Lift-off process for patterning fine metal lines Randy D. Redd, Ralph R. Dammel, John P. Sagan 2002-04-16
6187506 Antireflective coating for photoresist compositions Shuji Ding, Dinesh N. Khanna, Dana L. Durham, Jianhui Shan, Eleazer Gonzalez 2001-02-13
5922503 Process for obtaining a lift-off imaging profile Ralph R. Dammel, Michael Deprado 1999-07-13
5399456 Image reversal negative working photoresist containing O-quinone diazide and cross-linking compound Donald Mammato, Dana L. Durham, Sangya Jain 1995-03-21
5324430 High performance pan composite membranes Tai-Shung Chung, E. Ronald Kafchinski, Brenda Bembry-Ross, C. Glen Wensley 1994-06-28
5256522 Image reversal negative working O-naphthoquinone diazide and cross-linking compound containing photoresist process with thermal curing Donald Mammato, Dana L. Durham, Sangya Jain 1993-10-26
5217840 Image reversal negative working o-quinone diazide and cross-linking compound containing photoresist process with thermal curing treatment and element produced therefrom Donald Mammato, Dana L. Durham, Sangya Jain 1993-06-08
5019488 Method of producing an image reversal negative photoresist having a photo-labile blocked imide Donald Mammato, Sangya Jain, Dana L. Durham, Douglas A. Usifer, Michael J. McFarland 1991-05-28
4931381 Image reversal negative working O-quinone diazide and cross-linking compound containing photoresist process with thermal curing treatment Donald Mammato, Dana L. Durham, Sangya Jain 1990-06-05
4929536 Image reversal negative working O-napthoquinone diazide and cross-linking compound containing photoresist process with thermal curing Donald Mammato, Dana L. Durham, Sangya Jain 1990-05-29
4885232 High temperature post exposure baking treatment for positive photoresist compositions 1989-12-05
4297393 Method of applying thin metal deposits to a substrate Richard Denning, Barry Polhemus 1981-10-27
4220706 Etchant solution containing HF-HnO.sub.3 -H.sub.2 SO.sub.4 -H.sub.2 O.sub.2 1980-09-02