Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11560686 | Membrane-lined wall | James H. Lancaster, Eric E. Gregg | 2023-01-24 |
| 11519152 | System and method for installing a membrane-lined buried wall | James H. Lancaster, Eric E. Gregg | 2022-12-06 |
| 11230818 | Membrane-lined wall | James H. Lancaster, Eric E. Gregg | 2022-01-25 |
| 11001983 | Membrane-lined wall | James H. Lancaster, Eric E. Gregg | 2021-05-11 |
| 10753061 | Membrane-lined wall | James H. Lancaster, Eric E. Gregg | 2020-08-25 |
| 10655296 | Membrane-lined wall | James H. Lancaster, Eric E. Gregg | 2020-05-19 |
| 10501908 | Membrane-lined wall | James H. Lancaster, Eric E. Gregg | 2019-12-10 |