| Challenges in developing hydrogen direct injection technology for internal combustion engines A Welch, D Mumford, S Munshi, J Holbery, B Boyer, M Younkins, H Jung SAE Technical Paper, 2008 | 120 | 2008 |
| Multi-level skip fire MA Younkins, LJ Serrano US Patent 9,399,964, 2016 | 108 | 2016 |
| Hybrid powertrain control LG Breton, RD Yuille, MA Shost, LJ Serrano, JW Parsels, MA Younkins US Patent 8,880,258, 2014 | 79 | 2014 |
| Using cylinder firing history for combustion control in a skip fire engine MA Wilcutts, X Yuan, JP Switkes, L Chien, SE Carlson, CW Chandler, ... US Patent 9,664,130, 2017 | 60 | 2017 |
| System and method for safe valve activation in a dynamic skip firing engine JW Parsels, MA Younkins, SK Chen US Patent 9,175,613, 2015 | 60 | 2015 |
| Hybrid vehicle with cylinder deactivation RD Yuille, MA Shost, LJ Serrano, JW Parsels, MA Younkins US Patent 8,892,330, 2014 | 60 | 2014 |
| Valve fault detection MA Younkins, SK Chen, L Chien, M Nagashima, JW Parsels, G Routledge US Patent 9,562,470, 2017 | 56 | 2017 |
| Lean burn internal combustion engine exhaust gas temperature control MA Younkins, SK Chen, MA Wilcutts US Patent 10,247,072, 2019 | 51 | 2019 |
| Multi-level skip fire MA Younkins, LJ Serrano US Patent 9,689,327, 2017 | 48 | 2017 |
| Fuel economy gains through Dynamic-Skip-Fire in spark ignition engines K Eisazadeh-Far, M Younkins SAE Technical Paper, 2016 | 45 | 2016 |
| Misfire detection system CH Loucks, S Hashemi, LJ Serrano, MR Pirjaberi, SK Chen, MA Younkins, ... US Patent 9,399,963, 2016 | 44 | 2016 |
| Cam phaser control JP Switkes, X Yuan, MA Younkins US Patent 9,291,106, 2016 | 40 | 2016 |
| Valve fault detection MA Younkins, SK Chen US Patent 9,890,732, 2018 | 39 | 2018 |
| Determination of a high pressure exhaust spring in a cylinder of an internal combustion engine MA Younkins, JW Parsels, S Hashemi US Patent 9,581,097, 2017 | 38 | 2017 |
| Multi-level skip fire MA Younkins, LJ Serrano US Patent 9,476,373, 2016 | 34 | 2016 |
| Skip fire engine control AS Tripathi, CW Chandler, JP Switkes, MA WILCUTTS, MA Younkins US Patent 8,651,091, 2014 | 34 | 2014 |
| Ford 6.8 L hydrogen IC engine for the E-450 shuttle van RJ Natkin, AR Denlinger, MA Younkins, AZ Weimer, S Hashemi, ... SAE Technical Paper, 2007 | 32 | 2007 |
| Internal combustion engine using variable valve lift and skip fire control MA Shost, MA Younkins US Patent 10,233,796, 2019 | 28 | 2019 |
| Dynamic skip fire operation of a gasoline compression ignition engine S Hashemi, MA Younkins, JE Kirwan US Patent App. 15/282,308, 2017 | 28 | 2017 |
| Port injection of water into a DI hydrogen engine M Younkins, MS Wooldridge, BA Boyer SAE Technical Paper, 2015 | 26 | 2015 |
