Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4577700 | Method and system for displacing drilling fluid from a drill string in a well drilling system | Thomas B. Dellinger, William G. Boston, James H. Sexton | 1986-03-25 |
| 4539102 | Method and apparatus for separating artificial drill cuttings from natural drill cuttings | William G. Boston | 1985-09-03 |