Issued Patents 2011
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8069921 | Adjustable flow control devices for use in hydrocarbon production | Luis A. Garcia, Martin P. Coronado, Elmer R. Peterson, Michael H. Johnson | 2011-12-06 |
| 7980265 | Valve responsive to fluid properties | Kevin C. Holmes | 2011-07-19 |
| 7971646 | Multi-position valve for fracturing and sand control and associated completion methods | Douglas J. Murray, Robert S. O'Brien, Peter J. Fay | 2011-07-05 |
| 7921915 | Removable injection or production flow equalization valve | Bennett M. Richard, Michael H. Johnson | 2011-04-12 |
| 7918272 | Permeable medium flow control devices for use in hydrocarbon production | Michael H. Johnson | 2011-04-05 |
| 7891434 | Packer setting device for high hydrostatic applications | James C. Doane, Robert S. O'Brien | 2011-02-22 |