Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8336258 | Self-driving combination sealing system for single-hung door/window | William Kip Speyer, Jonathan D. Thielmann, Bryan D. Dervarics, Robby A. Marsh | 2012-12-25 |
| 8109037 | Active sealing system for single-hung door/window | William Kip Speyer, Jonathan D. Thielmann | 2012-02-07 |