Frederick S. Johns — 1 Patent at Canada Post

Frederick S. Johns has been granted 1 US patent while listed as an inventor at Canada Post. All of these patents were granted in 1995. Frederick S. Johns ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Frederick S. Johns in Ottawa, ON, CA.

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5420403	Mail encoding and processing system	David R. Allum, Donald G. Clysdale	1995-05-30

Frederick S. Johns — 1 Patent

Issued Patents All Time

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