TP

Theodore Clifton Pettyjohn

PT Phase Technologies: 1 patents #4 of 4Top 100%
Overall (All Time): #1,944,833 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9871462 Regenerative variable frequency drive with auxiliary power supply Peda V Medagam, Jack Yang 2018-01-16
8941340 Regenerative variable frequency drive Larry G. Meiners, Jack Yang, Peda V Medagam 2015-01-27