Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D306006 | Boat | — | 1990-02-13 |
| 4538682 | Method and apparatus for removing oil well paraffin | James W. McManus, Elmer Winckler | 1985-09-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D306006 | Boat | — | 1990-02-13 |
| 4538682 | Method and apparatus for removing oil well paraffin | James W. McManus, Elmer Winckler | 1985-09-03 |