Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
AL

Alan Leon Levering

IBM: 4 patents #21,733 of 70,183Top 35%
Rochester, MN: #1,080 of 3,042 inventorsTop 40%
Minnesota: #15,886 of 52,454 inventorsTop 35%
Overall (All Time): #1,213,592 of 4,157,543Top 30%
4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9104673 Method for supporting multiple filesystem implementations Dennis Steven DeLorme, Margaret R. Fenlon, Michael John Oberholtzer, Jeffrey J. Parker, Richard Theis +1 more 2015-08-11
8667035 Method of converting a filesystem while the filesystem remains in an active state Dennis Steven DeLorme, Margaret R. Fenlon, Robert Gintowt, Thomas Marcus McBride, Michael John Oberholtzer +3 more 2014-03-04
7984088 Method for supporting multiple filesystem implementations Dennis Steven DeLorme, Magaret Rose Fenlon, Michael John Oberholtzer, Jeffrey J. Parker, Richard Theis +1 more 2011-07-19
6785693 Management of multiple links to a file in a file system Dennis Steven DeLorme, Jeffrey J. Parker, John Christopher Ripstra 2004-08-31