Keith A. Ruffner — 1 Patent at Nec Electronics

Keith A. Ruffner has been granted 1 US patent while listed as an inventor at Nec Electronics. All of these patents were granted in 1990. Keith A. Ruffner ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Keith A. Ruffner in Colfax, CA, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4968336	Plasma etch vaporous exhaust collection system	Andrew R. Reimanis, Marvin G. March	1990-11-06	$60,000

Keith A. Ruffner — 1 Patent

Issued Patents All Time

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