Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8853885 | Method and system for voltage independent power supply load sharing | Christopher Umminger, David Henry Soo, Mitchell E. Lee, Zhipeng Li | 2014-10-07 |
| 8022679 | Systems and methods for fast switch turn on approximating ideal diode function | Christopher Umminger | 2011-09-20 |
| 7920013 | Systems and methods for oscillation suppression in switching circuits | Christopher Umminger | 2011-04-05 |