Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6154686 | Distributed architecture | Peter J. Hefferen, Christopher E. Kikta, Bruce D. Arnold | 2000-11-28 |
| 5988860 | System and method for directing air flow having a sash | Peter J. Hefferen, Christopher E. Kikta | 1999-11-23 |