Robert A. Durance — 1 Patent at Mitel

Robert A. Durance has been granted 1 US patent while listed as an inventor at Mitel. All of these patents were granted in 1982. Robert A. Durance ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Robert A. Durance in Gatineau, QC, CA.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4355208	Telephone call denial system	John A. Cribb, John R. Whitbread, Graham Neathway	1982-10-19	$8,420,000

Robert A. Durance — 1 Patent

Issued Patents All Time

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