Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11613994 | Piston arrangement | — | 2023-03-28 |
| 11603881 | Piston arrangement | — | 2023-03-14 |
| 11543514 | Activity detection in sand environment | Roger P. Vonderahe, Patricia L. Vonderahe, Michael W. Schab | 2023-01-03 |
| 11092070 | Internal combustion engine | — | 2021-08-17 |
| 11008863 | Piston arrangement | — | 2021-05-18 |
| 10858938 | Piston arrangement | — | 2020-12-08 |
| 10472964 | Piston arrangement | — | 2019-11-12 |
| 10260411 | Piston arrangement and internal combustion engine | — | 2019-04-16 |
| 10154655 | Mobile animal surveillance and distress monitoring | Jeffrey R. Schab, Michael W. Schab, Jason A. Pennell, Roger P. Vonderahe | 2018-12-18 |
| 9894885 | Mobile animal surveillance and distress monitoring | Jeffrey R. Schab, Michael W. Schab | 2018-02-20 |
| 9896068 | Energy recovery system | — | 2018-02-20 |
| 9629340 | Mobile animal surveillance and distress monitoring | Jeffrey R. Schab, Michael W. Schab | 2017-04-25 |