Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method and preparation for the photochromic marking and/or for securing the authenticity of objects

Method and preparation for the photochromic marking and/or for securing the authenticity of objects

US Patent 6616964 · Granted Sep 9, 2003

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Optical data store and method for storage of data in an optical data store2016
Protective material comprising reversible and irreversible photochemical functio2012
Intraocular lens2012
Proton-translocating retinal protein2011
Method of guaranteeing the authenticity of documents by checking for the presenc2010
Optical data store and method for storage of data in an optical data store2010
Method for producing biomass2009
Linker-free covalent coupling of bacteriorhodopsin in purple membrane form2005
Ophthalmologic implant2005
Light modulator comprising a photochromic layer2002
Preparations of bacteriorhodopsin variants having increased memory time, and the2001
System for the electrochemical delignification of lignin-containing materials an2001