Inventor
SCHAL HANS-PETER
DE7 patents
⚠️ This page may combine multiple inventors who share the name “SCHAL HANS-PETER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAYER AG
4 patentsUS7108770B2Sep 19, 2006
Process for the purification of toluene diisocyanate incorporating a dividing-wall distillation column for the final purification
BAYER AG19 citations86
US5359141AOct 25, 1994
Process for the production of polynuclear aromatic polyamines
BAYER AG14 citations72
US5196591AMar 23, 1993
Process for the production of polynuclear aromatic polyamines
BAYER AG17 citations72
US6271414B1Aug 7, 2001
Process for the isomeric separation of isocyanates
BAYER AG6 citations69
BAYER MATERIALSCIENCE AG
3 patentsUS7649108B2Jan 19, 2010
Process for the distillation of a mixture of isomeric diisocyanatodiphenylmethanes
BAYER MATERIALSCIENCE AG63 citations96
US7521576B2Apr 21, 2009
Process for the distillation of a mixture of isomeric diisocyanatodiphenyl-methanes
BAYER MATERIALSCIENCE AG5 citations61
US6992230B2Jan 31, 2006
Process for the production of 1,5-dinitronaphthalene
BAYER MATERIALSCIENCE AG0 citations38