Inventor
WEISS WOLFGANG
DE29 patents
⚠️ This page may combine multiple inventors who share the name “WEISS WOLFGANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RUETGERSWERKE AG
9 patentsUS5169990ADec 8, 1992
Preparation of 9,9-bis-(4-hydroxyphenyl)-fluorene
RUETGERSWERKE AG6 citations61
US5149886ASep 22, 1992
Preparation of 9,9-bis-(4-hydroxyphenyl)-fluorene
RUETGERSWERKE AG6 citations61
US5066806ANov 19, 1991
Novel separation process
RUETGERSWERKE AG2 citations61
US5380862AJan 10, 1995
Preparation of isomer-free 2,5-dichloro-pyridine
RUETGERSWERKE AG6 citations57
US5082944AJan 21, 1992
Production of pyridine-3-sulfonic acid
RUETGERSWERKE AG3 citations57
US4942239AJul 17, 1990
Process for the production of 2-hydroxypyridine
RUETGERSWERKE AG4 citations57
US4510090AApr 9, 1985
Method for the production of phenanthrenequinone
RUETGERSWERKE AG3 citations55
US4865620ASep 12, 1989
Hair dye composition
RUETGERSWERKE AG0 citations51
US4925942AMay 15, 1990
Preparation of quinuclidine-3-methanol
RUETGERSWERKE AG1 citations49
ELLENBERGER & POENSGEN
4 patentsUSD929320SAug 31, 2021
Equipment for distribution of electric power
ELLENBERGER & POENSGEN5 citations82
US10366852B2Jul 30, 2019
Power relay for a vehicle
ELLENBERGER & POENSGEN7 citations80
USD1047888SOct 22, 2024
Equipment for distribution of electric power
ELLENBERGER & POENSGEN0 citations61
US10249462B2Apr 2, 2019
Power relay for a vehicle
ELLENBERGER & POENSGEN0 citations48