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Toronto, Canada

International Barrier Corporation

USPTO Granted Patents = 2

Forward Citations = 53

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4 inventors (with patents filed for the assignee):

Teddy J Hirsch (1 out of 2 patents)

Lincoln C Cobb (1 out of 1 patent)

Raymond A Wardell (1 out of 1 patent)

4. Lincoln C Cobb (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 5054954 - Roadway barrier (1991-10-08),

2. 4423854 - Roadway barrier (1984-01-03),

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USPTO Data Jan 1 1976 - Dec 30 2025

2 Patents

#554 in Toronto

#5,842 in Canada

Toronto, Canada

International Barrier Corporation

Forward Citations = 53

4 inventors:

Teddy J Hirsch (1 out of 2 patents)

Lincoln C Cobb (1 out of 1 patent)

Raymond A Wardell (1 out of 1 patent)

4. Lincoln C Cobb (1 out of 1 patent)

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