Roger E. Johnston — 1 Patent at Tektronix

Roger E. Johnston has been granted 1 US patent while listed as an inventor at Tektronix. All of these patents were granted in 1989. Roger E. Johnston ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Roger E. Johnston in Hillsboro, OR, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4819049	Method of fabricating high voltage and low voltage transistors using an epitaxial layer of uniform thickness	Alex Tang	1989-04-04	$552,000

Roger E. Johnston — 1 Patent

Issued Patents All Time

Patent Widget