Ralph E. James — 1 Patent at 3M

Ralph E. James has been granted 1 US patent while listed as an inventor at 3M. All of these patents were granted in 1981. Ralph E. James ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Ralph E. James in White Bear Lake, MN, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4275529	High flap density abrasive flap wheel	Michael L. Teetzel	1981-06-30	$14,415,000

Ralph E. James — 1 Patent

Issued Patents All Time

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