Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8031896 | Passive acoustic radiating | Geoffrey C. Chick, Hal P. Greenberger, Christopher B. Ickler, Roger Mark, George Nichols | 2011-10-04 |
| 7983813 | Active suspending | Upendra Ummethala, James A. Parison, Thomas C. Schroeder, Daniel Francis Opila, Linda Ystueta | 2011-07-19 |
| 7888907 | Controlled charging and use of power source | Hal P. Greenberger | 2011-02-15 |
| 7880330 | Controlling a power converter | Hal P. Greenberger | 2011-02-01 |