Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8177787 | Disposable battery pack for a surgical drill; and method | Douglas W. Walker, M. Terry Olson | 2012-05-15 |
| 7212392 | Personal body grounding system instrumentation and process | Douglas W. Walker, Jerome Fournier, Clinton Ober | 2007-05-01 |
| 6887244 | Cordless surgical handpiece with disposable battery; and method | Douglas W. Walker, M. Terry Olson | 2005-05-03 |
| 6126670 | Cordless surgical handpiece with disposable battery; and method | Douglas W. Walker, M. Terry Olson | 2000-10-03 |
| 6121753 | Apparatus and method for testing and indicating battery charge and functionality | Douglas W. Walker | 2000-09-19 |