29 Utility and 2 Design Patents
#120 in Toronto
#1,294 in Canada
#97,207 in the World
rank by utility patentsForward Citations = 811
Company Filing History:
Engineering Services Inc.
The Consumer's Gas Company Ltd.

4. 2 out of 2,276
Northern Telecom Limited
5. 2 out of 536
Her Majesty the Queen in Right of Canada, As Represented by the Minister
where one patent can have more than one assignee
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