Issued Patents All Time
Showing 76–81 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5177252 | Halogenated aryl ester damping fluids and lubricants | — | 1993-01-05 |
| 5154845 | Fluorine containing lubricating composition for relatively moving metal surfaces | — | 1992-10-13 |
| 5019011 | Closure for brood chamber | Marion L. McLatchy | 1991-05-28 |
| 4949796 | Drilling head seal assembly | — | 1990-08-21 |
| 4887464 | Measurement system and method for quantitatively determining the concentrations of a plurality of gases in drilling mud | Eli Tannenbaum, Trevor Burgess, Vassilios Kalessidis, Andre Orban, Klaus J. Zanker | 1989-12-19 |
| 4835304 | High density ester damping fluids | — | 1989-05-30 |