Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6722433 | Methods of sealing expandable pipe in well bores and sealing compositions | Lance E. Brothers | 2004-04-20 |
| 6561273 | Oil based compositions and method for temporarily sealing subterranean zones | Lance E. Brothers, Ronald J. Crook | 2003-05-13 |
| 6244343 | Cementing in deep water offshore wells | Lance E. Brothers | 2001-06-12 |