Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9068661 | Curved flapper seal with stepped intermediate surface | Robert J. Dyer, Thomas S. Myerley, Wade A. Miller, Michael L. Hair | 2015-06-30 |
| 8863767 | Alignment system for flapper valve | Wade A. Miller, Robert J. Dyer, Michael L. Hair, Thomas S. Myerley, Leonard Medill | 2014-10-21 |