Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7908851 | Hydraulic energy storage with reinforced layer | David R. Hall, Francis Leany, Tyson J. Wilde, Boyd Black | 2011-03-22 |
| 7891453 | Energy storage in an elastic vessel | David R. Hall, Francis Leany | 2011-02-22 |