Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8022019 | Method of making proppant used in gas or oil extraction | David John Rush | 2011-09-20 |
| 7877829 | System and method for maintaining air inflatable mattress configuration | Michael R. Oliva, Kevin Bendele, Bruce Phillips | 2011-02-01 |