RD

Ralph R. Dammel

AU Az Electronic Materials Usa: 19 patents #2 of 135Top 2%
CL Clariant Finance (Bvi) Limited: 19 patents #5 of 535Top 1%
Hoechst Gmbh: 18 patents #156 of 4,020Top 4%
HC Hoechst Celanese: 14 patents #37 of 871Top 5%
HL Hoechst Japan Limited: 3 patents #20 of 137Top 15%
CL Clariant: 2 patents #240 of 540Top 45%
IBM: 1 patents #44,794 of 70,183Top 65%
BO Braggone Oy: 1 patents #3 of 11Top 30%
Infineon Technologies Ag: 1 patents #4,439 of 7,486Top 60%
AS Az Electronic Materials (Luxembourg) S.A.R.L.: 1 patents #75 of 145Top 55%
📍 Shizuoka, RI: #1 of 1 inventorsTop 100%
Overall (All Time): #24,533 of 4,157,543Top 1%
77
Patents All Time

Issued Patents All Time

Showing 26–50 of 77 patents

Patent #TitleCo-InventorsDate
6723488 Photoresist composition for deep UV radiation containing an additive Takanori Kudo, Munirathna Padmanaban 2004-04-20
6686429 Polymer suitable for photoresist compositions Raj Sakamuri 2004-02-03
6576394 Negative-acting chemically amplified photoresist composition Pingyong Xu, Ping-Hung Lu 2003-06-10
6447980 Photoresist composition for deep UV and process thereof M. Dalil Rahman, Munirathna Padmanaban 2002-09-10
6372414 Lift-off process for patterning fine metal lines Randy D. Redd, John P. Sagan, Mark A. Spak 2002-04-16
6365322 Photoresist composition for deep UV radiation Munirathna Padmanaban 2002-04-02
6274295 Light-absorbing antireflective layers with improved performance due to refractive index optimization Robert A. Norwood 2001-08-14
6114085 Antireflective composition for a deep ultraviolet photoresist Munirathna Padmanaban, Stanley A. Ficner, Joseph E. Oberlander, John P. Sagan 2000-09-05
6063545 Negative-working radiation-sensitive mixture, and radiation-sensitive recording material produced with this mixture Horst Roeschert, Juergen Fuchs, Walter Spiess, Charlotte Eckes, Georg Pawlowski 2000-05-16
6042992 Bottom antireflective coatings through refractive index modification by anomalous dispersion Robert Norwood 2000-03-28
5994430 Antireflective coating compositions for photoresist compositions and use thereof Shuji Ding, Ping-Hung Lu, Dinesh N. Khanna, Jianhui Shan, Dana L. Durham +1 more 1999-11-30
5981145 Light absorbing polymers Shuji Ding, Dinesh N. Khanna, Ping-Hung Lu, Jianhui Shan, Dana L. Durham +2 more 1999-11-09
5922503 Process for obtaining a lift-off imaging profile Mark A. Spak, Michael Deprado 1999-07-13
5843319 Positive-working radiation-sensitive mixture Klaus-Juergen Przybilla, Takanori Kudo, Seiya Masuda, Yoshiaki Kinoshita, Natsumi Suehiro +4 more 1998-12-01
5807947 Copolymers 4-hydroxystyrene and alkyl substituted-4-hydroxystyrene Richard Vicari, Douglas J. Gordon, William D. Hinsberg, Dennis McKean, Carlton G. Willson 1998-09-15
5733714 Antireflective coating for photoresist compositions Iain McCulloch, Anthony J. Corso, Shuji Ding, Dana L. Durham, Ping-Hung Lu +2 more 1998-03-31
5719004 Positive photoresist composition containing a 2,4-dinitro-1-naphthol Ping-Hung Lu, Elaine G. Kokinda, Sunit S. Dixit 1998-02-17
5688893 Method of using a Lewis base to control molecular weight of novolak resins M. Dalil Rahman, Daniel P. Aubin, Dana L. Durham 1997-11-18
5652297 Aqueous antireflective coatings for photoresist compositions Iain McCulloch, Dana L. Durham, Ping-Hung Lu, Ming Kang, Dinesh N. Khanna +1 more 1997-07-29
5652317 Antireflective coatings for photoresist compositions Iain McCulloch, Dana L. Durham, Ping-Hung Lu 1997-07-29
5614349 Using a Lewis base to control molecular weight of novolak resins M. Dalil Rahman, Daniel P. Aubin, Dana L. Durham 1997-03-25
5614351 Radiation-curable mixture, and radiation-sensitive recording material produced therefrom for high-energy radiation Juergen Lingnau, Georg Pawlowski, Juergen Theis 1997-03-25
5541036 Negative photoresist compositions comprising a photosensitive compound, an alkoxymethylated melamine and novolak resin Akihiko Igawa, Masato Nishikawa, Georg Pawlowski 1996-07-30
5525453 Positive-working radiation-sensitive mixture Klaus-Juergen Przybilla, Takanori Kudo, Seiya Masuda, Yoshiaki Kinoshita, Natumi Suehiro +4 more 1996-06-11
5510420 Matarix resin for high-temperature stable photoimageable compositions Owen B. Evans 1996-04-23