Assignee
OPTICAL SECURITY GROUP INC
US·8 granted patents·132 citations·filing 1993–2005
Top patents by PatentIndex Score
8 records- 0184US7269123B2Wavelength selective coatings for optical disc securityOPTICAL SECURITY GROUP INC·Filed 2005·Granted Sep 11, 2007·9 cites·38 claims
- 0284US5913543ATamper evident and counterfeit resisting informational article and associated methodOPTICAL SECURITY GROUP INC·Filed 1996·Granted Jun 22, 1999·57 cites·28 claims
- 0374US5595624AMethod of making tamper evident and counterfeit resisting informational articleOPTICAL SECURITY GROUP INC·Filed 1994·Granted Jan 21, 1997·24 cites·10 claims
- 0460US6129975ATamper resistant vehicular validation tab and associated methodOPTICAL SECURITY GROUP INC·Filed 1997·Granted Oct 10, 2000·20 cites·22 claims
- 0553US5704652ATamper evident and counterfeit resisting informational article and associated methodOPTICAL SECURITY GROUP INC·Filed 1993·Granted Jan 6, 1998·9 cites·12 claims
- 0635US5948555ATamper resistant vehicular validation tab having differential adhesive propertiesOPTICAL SECURITY GROUP INC·Filed 1996·Granted Sep 7, 1999·4 cites·31 claims
- 0734US5763052AInformational article and an associated methodOPTICAL SECURITY GROUP INC·Filed 1995·Granted Jun 9, 1998·9 cites·13 claims
- 0819US5716482AInformational article and an associated methodOPTICAL SECURITY GROUP INC·Filed 1996·Granted Feb 10, 1998·0 cites·10 claims
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