Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4911201 | Valved manifold | Joseph H. Nichols, Michael Edward Jones, Ronald G. Hendry | 1990-03-27 |
| 4911411 | Clean gas valve using a metal-to-metal seal | Michael Edward Jones, Joseph H. Nichols, Ronald G. Hendry | 1990-03-27 |
| 4909271 | Ultrahigh purity gas valve with encapsulated bellows | Mark A. Canaan, Joseph H. Nichols, Ronald G. Hendry | 1990-03-20 |