Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Self-verifying security documents

Self-verifying security documents

US Patent 6273473 · Granted Aug 14, 2001

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Security document containing an authentication device2018
Optically variable devices, their production and use2017
Methods of producing diffractive structures in security documents2010
Self-verifying security documents2006
Self-verifying security documents2006
Self-verifying security documents2006
Self-verifying security documents2006
Self-verifying security documents2006
Printed matter producing reflective intaglio effect2006
Printed matter producing reflective intaglio effect2006
Method of verifying the authenticity of a security document and document for use2006
Multilayer materials2005