Ralph Yorio — 2 Patents at Vibratech

Ralph Yorio has been granted 2 US patents while listed as an inventor at Vibratech. The first was granted in 1989 and the most recent in September 1990. Ralph Yorio ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Ralph Yorio in Easton, PA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4953778	Method of making torsional vibration damper having a roll spun housing	Thomas J. Critton, Donald S. Johnson, Walter P. Pukalo	1990-09-04
4872369	Torsional vibration damper having a roll spun housing and other improvements	Thomas J. Critton, Donald S. Johnson, Walter P. Pukalo	1989-10-10

Ralph Yorio — 2 Patents

Issued Patents All Time

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