Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11673835 | Sustainable two-component annular grout composition and method for use with a tunnel-boring machine | Michael McDonald, Kenneth A. Berg, Flavio Ernesto Ribeiro, Jim Moran, Peter Marinescu +1 more | 2023-06-13 |
| 10100602 | Self-pressurizing soluble alkali silicate for use in sealing subterranean spaces | Michael McDonald, Xianglian Li, Brett Howard Cramer | 2018-10-16 |