Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for the production of documents which cannot be falsified

Process for the production of documents which cannot be falsified

US Patent 4389472 · Granted Jun 21, 1983

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Dispersions2010
Reactive polyurethane hotmelts with large PSA range2007
Electroluminescent arrangements and their use1999
Process for the preparation of polyurea greases1994
Optical biosensor and method of use1993
Mixtures of elastomer latices and dispersions of aromatic polycarbonates, polyes1990
Heat-sensitive polyurethane dispersions1989
Polyurea-modified polyetherurethanes and their use as emulsion breakers for wate1989
Test device and a method for the detection of a component of a liquid sample1989
Transparent test strip system1989
Metallized membrane systems1989
Indoline and 1,2,3,4-tetrahydroquinoline N(dicarboalkoxyvinyl) substituted deriv1988