Ralph E. Guest — 3 Patents at C. Crane

Ralph E. Guest has been granted 3 US patents while listed as an inventor at C. Crane. The first was granted in 2009 and the most recent in September 2012. Ralph E. Guest ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Ralph E. Guest in Fortuna, CA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
8274241	Light emitting diode lighting device	Jarl J. Johansen	2012-09-25
8253344	Light emitting diode lighting device	Jarl J. Johansen, Theodore G. Nelson	2012-08-28
D606229	Strip light	Jarl J. Johansen, Isiah Hahner, Robert C. Crane	2009-12-15

Ralph E. Guest — 3 Patents

Issued Patents All Time

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