Inventor
HINDAGOLLA SURAJ L
US12 patents
⚠️ This page may combine multiple inventors who share the name “HINDAGOLLA SURAJ L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD CO
8 patentsUS4963189AOct 16, 1990
Waterfast ink formulations with a novel series of anionic dyes containing two or more carboxyl groups
HEWLETT PACKARD CO170 citations98
US5062893ANov 5, 1991
Ink formulations by mixing anionic waterfast dyes containing two or more carboxyl groups
HEWLETT PACKARD CO65 citations95
US5026425AJun 25, 1991
Waterfastness of DB-168 ink by cation substitution
HEWLETT PACKARD CO70 citations95
US5595785AJan 21, 1997
Orifice plate for an ink-jet pen
HEWLETT PACKARD CO51 citations94
US5108503AApr 28, 1992
Smear resistant inks for ink-jet printers
HEWLETT PACKARD CO49 citations92
US4836851AJun 6, 1989
Dyes containing polyhydroxyl groups for ink-jet printing inks
HEWLETT PACKARD CO26 citations92
US5100470AMar 31, 1992
Waterfast ink formulations for thermal ink-jet using organic amines
HEWLETT PACKARD CO62 citations91
US4961785AOct 9, 1990
Smear resistant inks for thermal ink-jet printers
HEWLETT PACKARD CO16 citations73