RC

Robert W. Callahan

CE Celgard: 3 patents #52 of 126Top 45%
HC Hoechst Celanese: 3 patents #209 of 871Top 25%
CG Celanese Gmbh: 1 patents #216 of 478Top 50%
EV Evionyx: 1 patents #4 of 11Top 40%
IBM: 1 patents #44,794 of 70,183Top 65%
Overall (All Time): #522,866 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7119126 Polymer matrix material Mark G. Stevens, Muguo Chen 2006-10-10
6849702 Polymer matrix material Mark G. Stevens, Muguo Chen 2005-02-01
6602593 Battery separators with reduced splitting propensity Ron W. Call, Ken J. Harleson, Ta-Hua Yu 2003-08-05
6287730 Hydrophilic polyolefin having a coating containing a surfactant and an EVOH copolymer Khuy V. Nguyen 2001-09-11
6057061 Ethylene-vinyl alcohol copolymer battery separator Hongkyu Kim 2000-05-02
5102552 Membranes from UV-curable resins Richard D. Johnson 1992-04-07
4976867 Systems and methods for predetermining maximum pressure differentials for microporous hollow fibers employed in liquid-liquid extractions Bradley W. Reed 1990-12-11
4976897 Composite porous membranes and methods of making the same Richard D. Johnson 1990-12-11
4972317 Microprocessor implemented data processing system capable of emulating execution of special instructions not within the established microprocessor instruction set by switching access from a main store portion of a memory Joseph P. Buonomo, Steven R. Houghtalen, Sivarama K. Kodukula, Raymond E. Losinger, Brion Shimamoto +2 more 1990-11-20
4966707 Liquid/liquid extractions with microporous membranes Edward L. Cussler, Paul R. Alexander, Jr. 1990-10-30