Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10053954 | Cementing a liner using reverse circulation | Arthur Stautzenberger, Richard Paul Noffke, David Matus, Odee Daigle, Stephen Ross Maddux | 2018-08-21 |
| 9869157 | Reverse circulation cementing system for cementing a liner | Emile Edmund Sevadjian, Gary Allen Kohn, Arthur Stautzenberger, Richard Paul Noffke, Grant Lynn Hartman +3 more | 2018-01-16 |