DP

David C. Petruska

WO Woodward: 7 patents #20 of 238Top 9%
WG Woodward Governor: 2 patents #35 of 124Top 30%
📍 Fort Collins, CO: #539 of 3,421 inventorsTop 20%
🗺 Colorado: #5,162 of 40,980 inventorsTop 15%
Overall (All Time): #548,670 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
12116967 Measuring a spark of a spark plug Jeffrey S. Weaver 2024-10-15
10995726 Current profile optimization Sai Venkataramanan, Suraj Nair, Mark Notarfrancesco, Monte Wegner, Andy Vlietstra 2021-05-04
10907532 Controlled spark ignited flame kernel flow in fuel-fed prechambers Domenico Chiera, Gregory James Hampson 2021-02-02
9476347 Controlled spark ignited flame kernel flow in fuel-fed prechambers Domenico Chiera, Gregory James Hampson 2016-10-25
8931457 Multiplexing drive circuit for an AC ignition system with current mode control and fault tolerance detection Doyle Kent Stewart, Monte Wegner, Gerald Michael Eberhardt 2015-01-13
8461844 Self charging ion sensing coil 2013-06-11
8276564 Multiplexing drive circuit for an AC ignition system 2012-10-02
6738239 Active snubber circuit for electrical rotary actuator 2004-05-18
6670777 Ignition system and method Jeffrey B. Barrett, Mark R. Woolston 2003-12-30