Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9296597 | Hay lift assembly | — | 2016-03-29 |
| 6898978 | Geometry for pulsed acoustic measurements of particle size | Richard O'Brien | 2005-05-31 |
| 5245290 | Device for determining the size and charge of colloidal particles by measuring electroacoustic effect | Richard O'Brien | 1993-09-14 |
| 5163718 | Hose and hollow member arrangements with lip seal | — | 1992-11-17 |
| 4497208 | Measurement of electro-kinetic properties of a solution | Tonis Oja, Gary L. Petersen | 1985-02-05 |