Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9341035 | Apparatus for, and method of, landing items at a well location | Norman A. Henry | 2016-05-17 |
| 8893800 | Apparatus for, and method of, landing items at a well location | Norman A. Henry | 2014-11-25 |
| 8381818 | Apparatus for, and method of, landing items at a well location | Norman A. Henry | 2013-02-26 |
| 7886827 | Apparatus for, and method of, landing items at a well location | Norman A. Henry | 2011-02-15 |
| 7287598 | Apparatus for, and method of, landing items at a well location | Norman A. Henry | 2007-10-30 |
| 7025147 | Apparatus for, and method of, landing items at a well location | William C. Schafer, Norman A. Henry | 2006-04-11 |
| 6644413 | Method of landing items at a well location | William C. Shafer, Norman A. Henry | 2003-11-11 |
| 6378614 | Method of landing items at a well location | William C. Shafer, Norman A. Henry | 2002-04-30 |
| 6364012 | Drill pipe handling apparatus | William C. Shafer, Norman A. Henry | 2002-04-02 |
| 6349764 | Drilling rig, pipe and support apparatus | William C. Shafer, Norman A. Henry | 2002-02-26 |
| 6009611 | Method for detecting wear at connections between pin and box joints | Christopher P. Bourgeois, Robert Hatcher | 2000-01-04 |