Issued Patents 2016
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9311909 | Sensed sound level based fan speed adjustment | Yi He, Duane Martin Evans, Andrew Douglas Delano | 2016-04-12 |
| 9236729 | Anti-arcing circuit | Chee Kiong Fong, Suet Fong Tin, David Richard Perchilk, Michael Donovan Rulien, Perry S. Stultz | 2016-01-12 |