Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10336581 | System and method for reducing belt noise | David R. Polak, Christopher T. Chipman, Charles C. Coffin, Arthur Blanc, John P. Wesson +2 more | 2019-07-02 |
| 8500525 | Elevator ceiling ventilation cavity | Murllo W. Bonilha, Wenlong Li, Goldino Alves, Vijay Jayachandran | 2013-08-06 |