Ralph E. Biddle — 1 Patent at Amana Refrigeration

Ralph E. Biddle has been granted 1 US patent while listed as an inventor at Amana Refrigeration. All of these patents were granted in 1991. Ralph E. Biddle ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Ralph E. Biddle in Iowa City, IA, US.

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5046477	Gas cook-top with glass top	James Bennett, John D. Robeson	1991-09-10	$8,628,000

Ralph E. Biddle — 1 Patent

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