Issued Patents 2022
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11524873 | Ropeless elevator wheel force releasing system | Randy Roberts, Bruce P. Swaybill, Brad Guilani | 2022-12-13 |
| 11472671 | Inspection assembly for elevator system | Scott Phillippi, Joseph Crute | 2022-10-18 |
| 11434107 | Rope-climbing self propelled elevator system | Richard L. Hollowell | 2022-09-06 |
| 11407617 | Simply-supported recirculating elevator system | — | 2022-08-09 |
| 11390490 | Cantilevered climbing elevator | — | 2022-07-19 |