Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D377179 | Refrigerant recovery machine | Greg S. Sundheim, Brett W. Renck, Michael J. Ralph | 1997-01-07 |
| D351896 | Hand operated pump | Gregory S. Sundheim | 1994-10-25 |
| D309309 | Mixing nozzle for a fiber blowing and spraying machine | Gregory S. Sundheim | 1990-07-17 |