Fitchburg, MA, United States of America

Security Devices International Inc.


USPTO Granted Patents = 3

% Expired Patents = 33.3


Trademarks = 2

Forward Citations = 31

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8 inventors (with patents filed for the assignee):

goldMedal Andre Johann Buys (1 out of 4 patents)

silverMedal Nathan Blaunstein (1 out of 3 patents)

bronzeMedal Gregory Barry Sullivan (1 out of 1 patent)

4.  Dean Gregory Thrasher (1 out of 1 patent)

5.  Ilan Shalev (1 out of 12 patents)

6.  Matwey Bereznitsky (1 out of 1 patent)

7.  Ginnadii Swarzshtein (1 out of 1 patent)

8.  Haim Danon (1 out of 5 patents)

9.  Nathan Blaunshtein (2 patents)

10.  Haim Danon (4 patents)

11.  Matwey Bereznitski (0 patent)

12.  Ginnadii Swarzshatein (0 patent)


3 patents:

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USPTO Data Jan 1 1976 - Sep 29 2026

3 Patents

#10 in Fitchburg, MA

#3,960 in Massachusetts

#73,766 in US

Fitchburg, MA (US)
Fitchburg, MA, United States of America
Forward Citations = 31

8 inventors:

Please report any incorrect information to [email protected]
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