Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4911201 | Valved manifold | Michael Edward Jones, Ronald G. Hendry, Charles M. Obermeyer | 1990-03-27 |
| 4911411 | Clean gas valve using a metal-to-metal seal | Michael Edward Jones, Ronald G. Hendry, Charles M. Obermeyer | 1990-03-27 |
| 4909271 | Ultrahigh purity gas valve with encapsulated bellows | Mark A. Canaan, Charles M. Obermeyer, Ronald G. Hendry | 1990-03-20 |
| D301915 | Valve | Randall E. Fisher, David L. Martindale | 1989-06-27 |
| D301916 | Valve | Randall E. Fisher, David L. Martindale | 1989-06-27 |
| D299950 | Combined seal-off valve body and cap | Mark A. Canaan | 1989-02-21 |