Inventor
PAN BEN
CN4 patents
⚠️ This page may combine multiple inventors who share the name “PAN BEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SIEGFRIED AG
2 patentsUS11279685B2Mar 22, 2022
Enantiomeric separation of racemic nicotine by addition of an O,O″-disubstituted tartaric acid enantiomer
SIEGFRIED AG0 citations56
US11407730B2Aug 9, 2022
Preparation of racemic nicotine by reaction of ethyl nicotinate with N-vinylpyrrolidone in the presence of an alcoholate base and subsequent process steps
SIEGFRIED AG0 citations51