Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604186 | Encapsulated enzyme breaker and method for use in treating subterranean formations | Charles V. Hunt, Michael L. Carter, Samuel D. Pelley, Lewis R. Norman | 1997-02-18 |
| 5591700 | Fracturing fluid with encapsulated breaker | Phillip C. Harris, Stanley J. Heath | 1997-01-07 |