Inventor
WECHS FRIEDBERT
DE19 patents
⚠️ This page may combine multiple inventors who share the name “WECHS FRIEDBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MEMBRANA GMBH
6 patentsUS6497752B1Dec 24, 2002
Integrally asymmetrical polyolefin membrane
MEMBRANA GMBH66 citations94
US6375876B1Apr 23, 2002
Method for producing an integrally asymmetrical polyolefin membrane
MEMBRANA GMBH41 citations91
US7811507B2Oct 12, 2010
Dialysis membrane having improved ability for removal of middle molecules
MEMBRANA GMBH17 citations89
US7201860B2Apr 10, 2007
Polyamide membrane with improved hydrolytic stability and method for production thereof
MEMBRANA GMBH15 citations84
US7429343B2Sep 30, 2008
Process for producing polyolefin membrane with integrally asymmetrical structure
MEMBRANA GMBH8 citations72
US6632361B2Oct 14, 2003
Shaped objects for pyrogen retention and processes for their manufacture
MEMBRANA GMBH12 citations66
AKZONA INC
5 patentsUS4369156AJan 18, 1983
Process for the preparation of fibrillated fiber structures
AKZONA INC61 citations95
US4239720ADec 16, 1980
Fiber structures of split multicomponent fibers and process therefor
AKZONA INC104 citations95
US4342801AAug 3, 1982
Suede-like sheet material
AKZONA INC60 citations94
US4361609ANov 30, 1982
Fiber structures of split multicomponent fibers and process therefor
AKZONA INC22 citations81
US4612688ASep 23, 1986
Process for making suede-like sheet material
AKZONA INC10 citations72
AKZO NV
3 patentsUS4976859ADec 11, 1990
Integral asymmetric polyether-sulfone membrane, process for its production, and use for ultrafiltration and microfiltration
AKZO NV192 citations99
US4968733ANov 6, 1990
Process for producing microporous powders and membranes
AKZO NV281 citations97
US4594207AJun 10, 1986
Method for the production of porous bodies with adjustable total pore volume, adjustable pore size and adjustable pore walls
AKZO NV35 citations92