Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Multi-layer bar code arrangement using wavelength separation

Multi-layer bar code arrangement using wavelength separation

US Patent 6119943 · Granted Sep 19, 2000

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Multi-roller monocomponent toner applicator2001
Print cartridge RF return current control2000
Field effect imaging apparatus using non-conductive non-magnetic toner1999
Erase unit for ion deposition web-fed print engine1999
Field effect toning method/apparatus1999
Like polarity biasing to control toner dusting1999
Color selection by mixing primary toners1999
Toner delivery device1999
Non-magnetic toner dynamic recycling1998
Print cartridge cleaning apparatus and method using water and air1998
Field effect toning method1998
Method of applying non-magnetic toner1997