Inventor
THORWIRTH RALF
DE4 patents
Patents
4 patentsUS5561202AOct 1, 1996
Polymer electrolyte membrane, and process for the production thereof
HOECHST AG106 citations98
US5438082AAug 1, 1995
Polymer electrolyte membrane, and process for the production thereof
HOECHST AG199 citations98
US6214488B1Apr 10, 2001
Polymer electrolyte membrane and process for the production thereof
HOECHST AG55 citations96
US5741408AApr 21, 1998
Polymer electrolyte membrane for use in fuel cells and electrolysis cells
HOECHST AG80 citations96