Patent application 13889103 (US), filed 2013-05-07
Publication number: US20140331668A1
Title: DIRECT INJECTION OF DILUENTS OR SECONDARY FUELS IN GASEOUS FUEL ENGINES
CPC codes: F02D  19/027
F02M  26/36
Y02T  10/30
Office action: rejection, dated 2015-10-14
Rejection reasons: indefiniteness_112
Final disposition: pending (2015-10-14)