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Charlotte, NC, United States of America

Robert W Callahan

USPTO Granted Patents = 7

Average Co-Inventor Count = 2.3

ph-index = 6

Forward Citations = 213(Granted Patents)

Company Filing History:

Hoechst Celanese Corporation

Years Active: 1990-2003

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7 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6602593 - Battery separators with reduced splitting propensity (2003-08-05),

2. 6287730 - Hydrophilic polyolefin having a coating containing a surfactant and an EVOH copolymer (2001-09-11),

3. 6057061 - Ethylene-vinyl alcohol copolymer battery separator (2000-05-02),

4. 5102552 - Membranes from UV-curable resins (1992-04-07),

5. 4976897 - Composite porous membranes and methods of making the same (1990-12-11),

6. 4976867 - Systems and methods for predetermining maximum pressure differentials (1990-12-11),

7. 4966707 - Liquid/liquid extractions with microporous membranes (1990-10-30),

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