Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11987458 | Curtain assemblies or seals for dock levelers | Bruce Henning, Frank Heim | 2024-05-21 |
| 11649121 | Seal apparatus for dock levelers | Timothy J. Schmidt, Gary Borgerding, Frank Heim, Mary Blaser | 2023-05-16 |
| 9969576 | Inflatable weather barriers for loading docks | Charles J. Ashelin, Frank Heim, Timothy J. Schmidt | 2018-05-15 |