John M. Frederick — 1 Patent at Square D

John M. Frederick has been granted 1 US patent while listed as an inventor at Square D. All of these patents were granted in 1984. John M. Frederick ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list John M. Frederick in Peru, IN, US.

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4487113	Vent assembly and method of making same	David W. West, Lonnie R. Hazel	1984-12-11	$3,075,000

John M. Frederick — 1 Patent

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