Inventor
KOHN RACHEL S
US27 patents
⚠️ This page may combine multiple inventors who share the name “KOHN RACHEL S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOECHST CELANESE CORP
22 patentsUS5055116AOct 8, 1991
Gas separation membranes comprising miscible blends of polyimide polymers
HOECHST CELANESE CORP64 citations93
US4929405AMay 29, 1990
Ultrathin polyimide polymer flims and their preparation
HOECHST CELANESE CORP40 citations92
US4746474AMay 24, 1988
Ultrathin polyimide polymers films and their preparation
HOECHST CELANESE CORP40 citations92
US5074891ADec 24, 1991
Method of gas separation and membranes therefor
HOECHST CELANESE CORP37 citations89
US4978573ADec 18, 1990
Ultrathin polyimide polymer films and their preparation
HOECHST CELANESE CORP10 citations74
US4910083AMar 20, 1990
Ultrathin polyarylate polymer films and their preparation
HOECHST CELANESE CORP9 citations74
US4910082AMar 20, 1990
Ultrathin polyphenylene oxide polymer films and their preparation
HOECHST CELANESE CORP7 citations74
US4900623AFeb 13, 1990
Ultrathin polymethylmethacrylate polymer films
HOECHST CELANESE CORP8 citations74
US4880699ANov 14, 1989
Ultrathin polyimide polymer films and their preparation
HOECHST CELANESE CORP15 citations74
US4776999AOct 11, 1988
Ultrathin polyether sulfone polymer films and their preparation
HOECHST CELANESE CORP12 citations74
US4765939AAug 23, 1988
Process for preparing ultrathin polymethylmethacrylate polymer films
HOECHST CELANESE CORP8 citations74
US4746473AMay 24, 1988
Ultrathin blended cellulose nitrate polymer films and their preparation
HOECHST CELANESE CORP7 citations74
US4746472AMay 24, 1988
Ultrathin polyarylate polymer films and their preparation
HOECHST CELANESE CORP14 citations74
US4746475AMay 24, 1988
Ultrathin cellulose ester polymer films and their preparation
HOECHST CELANESE CORP7 citations74
US5614309AMar 25, 1997
Coated polypropylene or polyethylene useful for membranes
HOECHST CELANESE CORP8 citations70
US5320754AJun 14, 1994
Pan composite membranes
HOECHST CELANESE CORP9 citations70
US5045440ASep 3, 1991
Stabilization of optical information storage media by incorporation of nitrogen containing compounds
HOECHST CELANESE CORP11 citations70
US4908266AMar 13, 1990
Ultrathin cellulose ester polymer films and their preparation
HOECHST CELANESE CORP5 citations63
US4908267AMar 13, 1990
Ultrathin polyether sulfone films and their preparation
HOECHST CELANESE CORP5 citations63
US4900621AFeb 13, 1990
Ultrathin blended cellulose nitrate polymer films and their preparation
HOECHST CELANESE CORP4 citations63
US4746476AMay 24, 1988
Ultrathin polyphenylene oxide polymer films and their preparation
HOECHST CELANESE CORP6 citations63
US5232757AAug 3, 1993
Enhancement of positive contrast in optical recording
HOECHST CELANESE CORP6 citations62
CELANESE CORP
3 patentsUS4549907AOct 29, 1985
Thixotropic aqueous solutions containing a crosslinked polygalactomannan gum
CELANESE CORP18 citations82
US4469620ASep 4, 1984
Dry blend thickening composition containing benzoquinone and polygalactomannan gum
CELANESE CORP5 citations63
US4452639AJun 5, 1984
Benzoquinone ether adduct of polygalactomannan gum
CELANESE CORP2 citations63