Stephen Armstrong — 1 Patent at 3M

Stephen Armstrong has been granted 1 US patent while listed as an inventor at 3M. All of these patents were granted in 2007. Stephen Armstrong ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Stephen Armstrong in Halifax, NS, CA.

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
7166214	Dental amalgam separator	Colin Morrell	2007-01-23

Stephen Armstrong — 1 Patent

Issued Patents All Time

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