Inventor
KIPPER JUERGEN
DE6 patents
Patents
6 patentsUS5282894AFeb 1, 1994
Use of a liquid containing IR dyes as printing ink
BASF AG187 citations97
US5804447ASep 8, 1998
Use of compounds which absorb and/or fluoresce in the IR region as markers for liquids
BASF AG67 citations95
US5607762AMar 4, 1997
Ink-ribbons comprising IR-absorbing compounds
BASF AG70 citations94
US5998211ADec 7, 1999
Use of compounds which absorb and/or fluoresce in the IR region as markers for liquids
BASF AG36 citations92
US5512095AApr 30, 1996
Naphthalocyanines
BASF AG32 citations88
US5656752AAug 12, 1997
Preparation of naphthalocyanines
BASF AG12 citations73