Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6415556 | Transport mechanism for large structures such as retractable stadium rooves | Cyril Silberman, Barton L. Riberich, Cheuk A. Cheng, Dick Eide, Lennart Nielsen +4 more | 2002-07-09 |
| 6367206 | Retractable stadium roofs and transport mechanism therefor | Cyril Silberman, Barton L. Riberich, Cheuk A. Cheng, Dick Eide, Lennart Nielsen | 2002-04-09 |
| 6082054 | Retractable stadium roofs and transport mechanism therefor | Cyril Silberman, Barton L. Riberich, Cheuk A. Cheng, Dick Eide, Lennart Nielsen | 2000-07-04 |