Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11008497 | Sulfur-containing polyether surfactants for cement spacer fluids and other downhole applications | Marshall D. Bishop, Marcus D. Banks | 2021-05-18 |
| 10787599 | Sulfur-containing polyether surfactants for cement spacer fluids and other downhole applications | Marshall D. Bishop, Marcus D. Banks | 2020-09-29 |