Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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D. Michael Keffeler

MAMaxtor: 3 patents #132 of 656Top 25%
Longmont, CO: #808 of 2,039 inventorsTop 40%
Colorado: #13,156 of 40,980 inventorsTop 35%
Overall (All Time): #1,599,761 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6917497 Disk drive actuator arm latch assembly Gale D. Johnson, James A. Dunckley 2005-07-12
6665140 Conductive lock washer Vaclav Prochazka, Dana C. Fisher, Matthew J. Sandor 2003-12-16
6600632 Conductive lock washer Vaclav Prochazka, Dana C. Fisher, Matthew J. Sandor 2003-07-29