Granted Patent
Utility
US 6,581,835 · App. 09/500,874
METHOD OF AND SYSTEM FOR SCANNING BAR CODE SYMBOLS USING A LASER SCANNING PATTERN HAVING MULTIPLE FOCAL ZONES, WHEREIN THE MINIMUM BEAM DIMENSION/MINIMUM BAR WIDTH (MBD/MBW) RATIO IS GREATER THAN OR EQUAL TO 2.0
Inventors:
Mark Lucera, Frank Check, C. Harry Knowles, Xiaoxun Zhu, LeRoy Dickson
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Feb 9, 2000
Inventors
Mark Lucera
Frank Check
C. Harry Knowles
Xiaoxun Zhu
LeRoy Dickson
Assignee (at issue)
METROLOGIC INSTRUMENTS, INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.