Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5873508 | Internal combustion powered tool | Robert T. MacVicar, J. Oscar Aparicio, Jr., Tony Walter, John Walter | 1999-02-23 |
| 5752643 | Internal combustion powered tool | Robert T. MacVicar, John Walter | 1998-05-19 |