Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D411729 | Handle for luggage | Karl D. Langmuir, Glenn Schmierer | 1999-06-29 |
| D395361 | Wheeled upright luggage case | Andrew Zionts, Mark T. Salander, Charles E. Waddell, Glenn Schmierer | 1998-06-23 |
| D395164 | Wheeled luggage case | Karl D. Langmuir, Amy Wolf | 1998-06-16 |