Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7251532 | Medical lead fixation | Douglas N. Hess, Nicolaas Lokhoff, Richard D. Sandstrom, Timothy G. Laske | 2007-07-31 |
| 7184839 | Catheter-delivered cardiac lead | Willim J. Clemens, Michael L Freiborg, Douglas N. Hess, Elisabeth L. Belden, Terrell M. Williams +4 more | 2007-02-27 |
| 6489562 | Medical electrical lead having variable stiffness tip-ring spacer | Douglas N. Hess, Peter McIntyre, Richard D. Sandstrom | 2002-12-03 |
| 5948015 | Medical electrical lead | Douglas N. Hess, Richard D. Sandstrom, Rodica V. Ruta | 1999-09-07 |
| 5473812 | Method of manufacturing medical electrical lead having a torque indicator | Mary M. Morris, John S. Germanson, Richard D. Sandstrom | 1995-12-12 |