Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5355733 | Wide scale pointer arc, diaphragm gauge | Frank W. Murphy, Jr. | 1994-10-18 |
| 5040420 | Pressure responsive sending unit | Frank W. Murphy, Jr., Oren D. Moffett | 1991-08-20 |
| 4573489 | Dump valve | Bob L. O'Mary, Teddy H. Cruse | 1986-03-04 |
| 4505288 | Pneumatically controlled dump valve system for gas scrubbers | Frank W. Murphy, Jr., Bob L. O'Mary, Teddy H. Cruse | 1985-03-19 |