Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7419437 | Swing and swing packaging arrangement | Brian K. Zeilinger | 2008-09-02 |
| 6991550 | Climbing steps for playground structure | Brian K. Zeilinger, Matthew T. Bolland | 2006-01-31 |