Inventor
HENDI SHIVAKUMAR B
US10 patents
⚠️ This page may combine multiple inventors who share the name “HENDI SHIVAKUMAR B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIBA GEIGY CORP
6 patentsUS5618343AApr 8, 1997
Pigment compositions for coatings
CIBA GEIGY CORP26 citations92
US5457203AOct 10, 1995
Pigmentary synthesis of quinacridone solid solutions
CIBA GEIGY CORP23 citations92
US5424429AJun 13, 1995
Preparation of pigmentary 2,9-dichloroquinacridone
CIBA GEIGY CORP24 citations90
US5529623AJun 25, 1996
Pigmentary solid solutions of pyrrolo[3,4-c]pyrroles and quinacridones
CIBA GEIGY CORP8 citations72
US5472496ADec 5, 1995
Solid solutions of pyrrolo-[3.4-c]-pyrroles with quinacridonequinones
CIBA GEIGY CORP8 citations71
US5281269AJan 25, 1994
Aqueous process for preparation of modified beta quinacridone
CIBA GEIGY CORP16 citations70
CIBA SC HOLDING AG
4 patentsUS6057449AMay 2, 2000
Direct preparation of pyrrolo[3,4-c]pyrroles
CIBA SC HOLDING AG16 citations83
US6361594B1Mar 26, 2002
Direct preparation of pyrrolo[3,4-C]pyrroles
CIBA SC HOLDING AG7 citations72
US5785750AJul 28, 1998
1,4-diketo-3,6-diarylpyrolo 3,4-c! pyrrole
CIBA SC HOLDING AG6 citations72
US5786487AJul 28, 1998
1,4-diketo-3,6-diarylpyrolo 3,4-C!pyrrole pigment derivatives
CIBA SC HOLDING AG12 citations72