Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4651796 | Edge seal and rerailer for insulating shade | Bruce C. Gardner, David A. May | 1987-03-24 |
| 4516618 | Edge seal and rerailer for insulating shade | Bruce C. Gardner, David A. May | 1985-05-14 |
| 4497436 | Venting system for insulating window shade | Robert Stewart | 1985-02-05 |