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

William J. Krueger

Microsoft: 3 patents #13,382 of 40,388Top 35%
QUQuadtech: 1 patents #42 of 80Top 55%
Vernon Hills, IL: #190 of 549 inventorsTop 35%
Illinois: #17,877 of 84,256 inventorsTop 25%
Overall (All Time): #1,046,945 of 4,157,543Top 30%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6256642 Method and system for file system management using a flash-erasable, programmable, read-only memory Sriram Rajagopalan 2001-07-03
5898868 Method and system for file system management using a flash-erasable, programmable, read-only memory Sriram Rajagopalan 1999-04-27
5634050 Method and system for file system management using a flash-erasable programmable, read-only memory Sriram Rajagopalan 1997-05-27
5532720 Solvent recovery system for ink jet printer Victor G. Eckstein 1996-07-02
4270024 Telephone line activity monitor Peter F. Theis, Gregory Buchberger 1981-05-26