John C. Ventham — 1 Patent at Summagraphics

John C. Ventham has been granted 1 US patent while listed as an inventor at Summagraphics. All of these patents were granted in 1994. John C. Ventham ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list John C. Ventham in Georgetown, TX, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5303624	Apparatus for cutting sheet media	Ralph J. Lake, Jr.	1994-04-19	$586,000

John C. Ventham — 1 Patent

Issued Patents All Time

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