Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DS

Dunstan P. Sheldon — 8 Patents

MAMagtek: 2 patents #6 of 36Top 20%
SKStar Seimitsu Kabushiki Kaisha: 1 patents #5 of 8Top 65%
Altadena, CA: #75 of 429 inventorsTop 20%
California: #74,834 of 386,348 inventorsTop 20%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Dunstan P. Sheldon has been granted 8 US patents while listed as an inventor at Magtek. The first was granted in 1984 and the most recent in September 2000. Dunstan P. Sheldon ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Dunstan P. Sheldon in Altadena, CA, US.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
6112989 Mobile check-in station and method of use 2000-09-05
5504321 Ticketless travel card and method of use 1996-04-02
5010240 Composite ticket processing unit 1991-04-23
4960338 Dual printer system 1990-10-02
4944619 Construction for mounting an ink ribbon cassette in a heat transferable line printer Kenji Suzuki 1990-07-31
4879268 Multiple document parallel printing apparatus 1989-11-07
4744681 Form printer 1988-05-17
4458668 Package to form panel structure for use on water body 1984-07-10