Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9716637 | Communication string network | William E. Baker | 2017-07-25 |
| 8267206 | Motorized traction device for a patient support | John Vogel, Thomas W. Hanson, Craig Crandall, Joseph A. Kummer, Michael M. Frondorf +8 more | 2012-09-18 |
| 8051931 | Motorized traction device for a patient support | John Vogel, Thomas W. Hanson, Craig Crandall, Joseph A. Kummer, Michael M. Frondorf +8 more | 2011-11-08 |
| 7882582 | User interface and control system for powered transport device of a patient support apparatus | Robert M. Zerhusen, Steven V. McCaig, Christian H. Reinke | 2011-02-08 |
| 7828092 | Motorized traction device for a patient support | John Vogel, Thomas W. Hanson, Craig Crandall, Joseph A. Kummer, Michael M. Frondorf +8 more | 2010-11-09 |
| 7407024 | Motorized traction device for a patient support | John Vogel, Thomas W. Hanson, Craig Crandall, Joseph A. Kummer, Michael M. Frondorf +8 more | 2008-08-05 |
| 7273115 | Control apparatus for a patient support | Joseph A. Kummer, Michael M. Frondorf, David P. Lubbers | 2007-09-25 |
| 7195253 | Motorized traction device for a patient support | John Vogel, Thomas W. Hanson, Craig Crandall, Joseph A. Kummer, Michael M. Frondorf +8 more | 2007-03-27 |
| 7090041 | Motorized traction device for a patient support | John Vogel, Thomas W. Hanson, Craig Crandall, Joseph A. Kummer, Michael M. Frondorf +8 more | 2006-08-15 |
| 7083012 | Motorized traction device for a patient support | John Vogel, Thomas W. Hanson, Craig Crandall, Joseph A. Kummer, Michael M. Frondorf +8 more | 2006-08-01 |
| 7014000 | Braking apparatus for a patient support | Joseph A. Kummer, Michael M. Frondorf, David P. Lubbers | 2006-03-21 |
| 6877572 | Motorized traction device for a patient support | John Vogel, Thomas W. Hanson, Craig Crandall, Joseph A. Kummer, Michael M. Frondorf +8 more | 2005-04-12 |
| 6749034 | Motorized traction device for a patient support | John Vogel, Thomas W. Hanson, Craig Crandall, Joseph A. Kummer, Michael M. Frondorf +8 more | 2004-06-15 |
| 4631701 | Dynamic random access memory refresh control system | Robert C. Hughes | 1986-12-23 |