Inventor
MCDONALD MARLENE M
US6 patents
⚠️ This page may combine multiple inventors who share the name “MCDONALD MARLENE M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SPECTRA INC
5 patentsUS5640184AJun 17, 1997
Orifice plate for simplified ink jet head
SPECTRA INC54 citations95
US5605659AFeb 25, 1997
Method for poling a ceramic piezoelectric plate
SPECTRA INC79 citations95
US6682181B1Jan 27, 2004
Ink jet head containing a carbon member
SPECTRA INC21 citations91
US6848773B1Feb 1, 2005
Piezoelectric ink jet printing module
SPECTRA INC6 citations72
US6293638B1Sep 25, 2001
Bar code printing on cartons with hot melt ink
SPECTRA INC8 citations71