Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5535566 | Concealed grid ceiling panel system | Heikki Kolga, Ronald White | 1996-07-16 |
| 5428930 | Concealed grid ceiling panel system | Claude E. Bagley, Dwight D. Robbins, Charles B. Stormer, Gary H. Peddle, Heikki Kolga +3 more | 1995-07-04 |