DL

Dorothy A. Lieffers

📍 Ann Arbor, MI: #2,859 of 6,071 inventorsTop 50%
🗺 Michigan: #35,034 of 86,293 inventorsTop 45%
Overall (All Time): #2,284,675 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5390296 Method and apparatus for calculation with display data Richard L. Crandall, Ellen R. Craw, James A. Lahey, Patrick Miller 1995-02-14
5165012 Creating reminder messages/screens, during execution and without ending current display process, for automatically signalling and recalling at a future time Richard L. Crandall, Thomas P. Beyer, Paul E. Hansknecht, James K. Eschman 1992-11-17