Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8061984 | Dry gas blow down seal | Mark J. Kuzdzal, Glenn R. Grosso, Martin Maier, David J. Peer | 2011-11-22 |
| 7922218 | Shear ring casing coupler device | William C. Maier | 2011-04-12 |