David E. Stepner — 6 Patents at Greyhawk Systems

David E. Stepner has been granted 6 US patents while listed as an inventor at Greyhawk Systems. The first was granted in 1984 and the most recent in September 1994. David E. Stepner ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list David E. Stepner in Cupertino, CA, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5347913	Portable bicycle pump having collapsible handle and footstand	—	1994-09-20
5138368	Fabrication of printed wiring boards by projection imaging	Frederic J. Kahn, Neil G. Bergstrom	1992-08-11
5085506	Apparatus and method of forming and projecting high precision optical images	Frederic J. Kahn, Paul N. Kendrick, Jerry Leff, Linden J. Livoni, Bryan E. Loucks +1 more	1992-02-04
4969734	Apparatus and method of forming and projecting high precision optical images	Frederic J. Kahn, Paul N. Kendrick, Jerry Leff, Linden J. Livoni, Bryan E. Loucks +1 more	1990-11-13
4818098	Apparatus and method of forming and projecting high precision optical images	Frederic J. Kahn, Paul N. Kendrick, Jerry Leff, Linden J. Livoni, Bryan E. Loucks +1 more	1989-04-04
4424813	Multi-mode ultrasound scanner	James F. Havlice, Albert S. Waxman, Henry L. Schwartz	1984-01-10	$4,508,000

David E. Stepner — 6 Patents

Issued Patents All Time

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