Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5271202 | Suspended ceiling system with staked-on connectors | Ronald W. Vukmanic, John S. Borucki | 1993-12-21 |
| 4989387 | Ceiling system with staked on connectors | Ronald W. Vukmanic, John S. Borucki, James J. Dunn | 1991-02-05 |
| 4549383 | Suspended ceiling grid system | Ronald W. Vukmanic, John S. Borucki | 1985-10-29 |
| 4525973 | Suspended ceiling system | Ronald W. Vukmanic, John S. Borucki | 1985-07-02 |