Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Daniel Charles Estelle — 3 Patents

IBM: 3 patents #26,272 of 70,183Top 40%
Tucson, AZ: #1,845 of 6,004 inventorsTop 35%
Arizona: #10,057 of 32,909 inventorsTop 35%
Overall (All Time): #1,514,615 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8938400 Apparatus, system, and method for checking the health of encryption key managers Scott W. Griffith, Noah J. Sellars 2015-01-20
7444469 Storing information regarding operation of an automated data storage library to memory and to a reserved cartridge Brian G. Goodman, Diana J. Hellman 2008-10-28
7386667 Storing information regarding operation of an automated data storage library to memory and to a reserved cartridge Brian G. Goodman, Diana J. Hellman 2008-06-10