Inventor
ROBERTSON DOUGLAS LAURENCE
US9 patents
⚠️ This page may combine multiple inventors who share the name “ROBERTSON DOUGLAS LAURENCE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LEXMARK INT INC
8 patentsUS7604320B2Oct 20, 2009
Maintenance on a hand-held printer
LEXMARK INT INC13 citations83
US7787145B2Aug 31, 2010
Methods for improving print quality in a hand-held printer
LEXMARK INT INC12 citations82
US7661814B2Feb 16, 2010
Hand held micro-fluid ejection devices configured to block printing based on printer orientation and method of blocking
LEXMARK INT INC6 citations61
US7204654B2Apr 17, 2007
Perforation forming mechanism for use in an imaging apparatus
LEXMARK INT INC3 citations61
US7354211B2Apr 8, 2008
Perforation forming mechanism for use in an imaging apparatus
LEXMARK INT INC2 citations60
US6796556B2Sep 28, 2004
Multi-function media eject system in an ink jet printer
LEXMARK INT INC5 citations60
US6637742B2Oct 28, 2003
Multi-function media eject system in an ink jet printer
LEXMARK INT INC0 citations50
US7657004B2Feb 2, 2010
System and method for detecting a connection condition of a phone jack
LEXMARK INT INC0 citations41