Inventor
SCHAFFER ROBERT R
US12 patents
⚠️ This page may combine multiple inventors who share the name “SCHAFFER ROBERT R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SPECTRA INC
8 patentsUS4751528AJun 14, 1988
Platen arrangement for hot melt ink jet apparatus
SPECTRA INC158 citations98
US4891654AJan 2, 1990
Ink jet array
SPECTRA INC57 citations96
US4835554AMay 30, 1989
Ink jet array
SPECTRA INC81 citations96
US5075689ADec 24, 1991
Bidirectional hot melt ink jet printing
SPECTRA INC49 citations92
US4971408ANov 20, 1990
Remelting of printed hot melt ink images
SPECTRA INC28 citations92
US4801473AJan 31, 1989
Method for preparing a hot melt ink transparency
SPECTRA INC22 citations80
US5337079AAug 9, 1994
Post-processing of colored hot melt ink images
SPECTRA INC6 citations62
US4877676AOct 31, 1989
Hot melt ink transparency
SPECTRA INC4 citations60