Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8069758 | Head section for a rotary cutting device | Jack K. Zhang | 2011-12-06 |
| 5709267 | Aqueous particulate dispersion for reducing the water influx rate into a wellbore | Edward A. Long | 1998-01-20 |
| 5594400 | Reed relay | — | 1997-01-14 |
| 5570072 | Method of establishing a relay contact arrangement | — | 1996-10-29 |
| 4744208 | Rake head | — | 1988-05-17 |
| 4403616 | Expiratory breathing exercise device | — | 1983-09-13 |
| 4312268 | Apparatus and method for coating of inks applied at high speed | Hugh B. Skees | 1982-01-26 |
| 4217231 | Low fluid loss foam | — | 1980-08-12 |
| 4195633 | Chest drainage system with visual float means | John R. Nehring | 1980-04-01 |