Holographic digital watermark
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 23, 2009
Grant Date -
Dec 4, 2003
app pub date -
Jan 9, 2003
filing date -
Jan 9, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A digital watermark which is incorporated, perceptibly or imperceptibly, into a diffractive device such as a hologram. When applied to protect and/or authenticate a document of value or a product, the device provides an increased degree of overt and covert security, and permits tracking of the sale, use or other parameters associated with the product and/or document of value.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully