Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5048348 | Fluid flow volumetric determination apparatus and method | Michael G. Durrett, Earl L. Dowty | 1991-09-17 |
| 5014010 | Dual frequency microwave water cut monitoring means and method | David A. Helms, Michael G. Durrett | 1991-05-07 |
| 4977377 | Microwave water cut monitor with temperature controlled test cell | Michael G. Durrett, David A. Helms, Earl L. Dowty, John D. Marrelli, Joseph D. Stafford +1 more | 1990-12-11 |
| 4947127 | Microwave water cut monitor | David A. Helms, Michael G. Durrett, Earl L. Dowty, John D. Marrelli | 1990-08-07 |
| 4947128 | Co-variance microwave water cut monitoring means and method | David A. Helms, Michael G. Durrett, John D. Marrelli, Joseph D. Stafford | 1990-08-07 |
| 4884457 | Means and method for monitoring the flow of a multi-phase petroleum stream | — | 1989-12-05 |
| 4760742 | Multi-phase petroleum stream monitoring system and method | — | 1988-08-02 |
| 4660414 | Petroleum stream monitoring means and method | David A. Helms, Thomas M. Williams, Jr. | 1987-04-28 |
| 4499418 | Water cut monitoring means and method | David A. Helms, Thomas M. Williams, Jr. | 1985-02-12 |