Subrata Dey

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St. Petersburg, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Deactivatable fequency-dividing-transponder tag
- Patent number 4,882,569
- Issue date Nov 21, 1989
- Security Tag Systems, Inc.
- Subrata Dey
- G08 - SIGNALLING
Information Patent Grant
Secure paper product
- Patent number 4,835,028
- Issue date May 30, 1989
- Security Tag Systems, Inc.
- Subrata Dey
- G08 - SIGNALLING