Philip D. Johnson — 3 Patents at Textron

Philip D. Johnson has been granted 3 US patents while listed as an inventor at Textron. The first was granted in 1989 and the most recent in August 2014. Philip D. Johnson ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Philip D. Johnson in Whitehall, MI, US.

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Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
8807106	Camshaft	Richard M. Kritzman	2014-08-19	$19,870,000
5028281	Camshaft	William J. Hayes, Harry A. Matrone	1991-07-02	$17,073,000
4880477	Process of making an austempered ductile iron article	William J. Hayes, Harry A. Matrone	1989-11-14	$5,160,000

Philip D. Johnson — 3 Patents

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