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

John Lefferts

EMEmc: 2 patents #1,324 of 3,345Top 40%
Sutton, MA: #64 of 124 inventorsTop 55%
Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #2,071,067 of 4,157,543Top 50%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8433848 Analysis tool for a multi-tier storage environment Amnon Naamad, Lee W. Sapiro, Marik Marshak 2013-04-30
7171338 Output performance trends of a mass storage system Kenneth R. Goguen, Maureen A. Lally, Paul F. Hale 2007-01-30