Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9714574 | Rotary internal combustion engine, gas compressor, and liquid pump | Bradley Scott Farrenkopf | 2017-07-25 |
| 9347369 | Systems and methods for controlling compression in an engine, compressor, or pump | Bradley Scott Farrenkopf | 2016-05-24 |
| 9347370 | Rotary internal combustion engine, gas compressor, and liquid pump | Bradley Scott Farrenkopf | 2016-05-24 |
| 7414920 | Acoustic generator for distance sounding with microphone designed for efficient echo detection | Walter Franklin Guion | 2008-08-19 |
| 5214411 | Ultrasonic animal repelling apparatus | — | 1993-05-25 |
| 5066011 | Flashing light ball | Douglas L. Dykstra | 1991-11-19 |
| 4491991 | Toilet cover attachment | — | 1985-01-08 |