Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7862926 | Fuel cartridge interconnect for portable fuel cells | Andrew G. Gilicinski, David N. Klein, John Rotondo | 2011-01-04 |
| 7646174 | Battery low-voltage cutoff circuit | Aaron William Arbesman, David N. Klein, John Rotondo | 2010-01-12 |
| 7482091 | Fuel cartridge interconnect for portable fuel cells | Andrew G. Gilicinski, David N. Klein, John Rotondo | 2009-01-27 |
| 7038333 | Hybrid power supply | David N. Klein, John Rotondo | 2006-05-02 |