Johnson; Irvin D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Johnson; Irvin D..The latest application filed is for "oil well tool for in situ release of wellbore treatment fluid".
- Johnson; Irvin D. - Englewood CO
| Patent | Date |
|---|---|
| Oil well tool for in situ release of wellbore treatment fluid Grant 4,809,778 - Johnson March 7, 1 | 1989-03-07 |
| Method and apparatus for measuring water in crude oil Grant 4,644,263 - Johnson February 17, 1 | 1987-02-17 |
| Self-contained bore hole flow measurement system and method therefor Grant 4,581,927 - Johnson April 15, 1 | 1986-04-15 |
| Method and apparatus for the detection of pipeline holidays Grant 4,390,836 - Bruce , et al. June 28, 1 | 1983-06-28 |
| Computer Set Point Station Grant 3,693,163 - Johnson , et al. September 19, 1 | 1972-09-19 |
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