Inventor · Lafayette, IN, US

Martin L. Willi

48Patents
15h-index
38Co-inventors
81Inventor score

Filing activity: Jun 21, 1995 → Nov 15, 2018

Most-cited inventions

PatentTitleAreaCited byStatus
US6101986A Method for a controlled transition between operating modes of a dual fuel engine Emerging Cross-Sectional Technologies 68 Expired
US5947076A Fuel combustion assembly for an internal combustion engine having an encapsulated spark plug for igniting lean gaseous fuel within a precombustion chamber Emerging Cross-Sectional Technologies 57 Expired
US6739289B2 Method and apparatus for providing a hydrogen enriched fuel to combustion prechamber Emerging Cross-Sectional Technologies 47 Expired
US6032617A Dual fuel engine which ignites a homogeneous mixture of gaseous fuel, air, and pilot fuel Emerging Cross-Sectional Technologies 43 Expired
US6000384A Method for balancing the air/fuel ratio to each cylinder of an engine Emerging Cross-Sectional Technologies 41 Expired
US5868121A Method and apparatus for relieving a differential pressure across a gaseous fuel admission valve of a dual fuel engine Emerging Cross-Sectional Technologies 31 Expired
US6095102A Dual fuel engine which creates a substantially homogeneous mixture of gaseous fuel, air, and pilot fuel during a compression stroke Emerging Cross-Sectional Technologies 30 Expired
US5771857A Direct injected gas engine with variable gas pressure control apparatus and method of operation Emerging Cross-Sectional Technologies 27 Expired
US6009860A Method for responding to detection of an open fault condition in a gaseous fuel admission valve of an engine Emerging Cross-Sectional Technologies 21 Expired
US7007669B1 Distributed ignition method and apparatus for a combustion engine Emerging Cross-Sectional Technologies 20 Expired
US6289871A Method for achieving minimum liquid pilot fuel delivery to each cylinder of a dual fuel engine while operating in a dual fuel mode Emerging Cross-Sectional Technologies 20 Expired
US7654086B2 Air induction system having bypass flow control Emerging Cross-Sectional Technologies 20 Expired
US6055963A Method for determining the energy content of a fuel delivered to an engine Emerging Cross-Sectional Technologies 20 Expired
US5593607A Combustion catalyst wire wrapped on corrosion resistive glow plugs Mechanical Engineering; Lighting; Heating 20 Expired
US6158418A Method for balancing the air/fuel ratio to each cylinder of an engine Emerging Cross-Sectional Technologies 15 Expired
US6044806A Method and apparatus for detecting gaseous fuel leakage through a gaseous fuel admission valve within an engine Emerging Cross-Sectional Technologies 14 Expired
US6666185B1 Distributed ignition method and apparatus for a combustion engine Emerging Cross-Sectional Technologies 14 Expired
US7467621B2 Engine and method for operating an engine Emerging Cross-Sectional Technologies 13 Active
US9739192B2 Fuel combustion system, nozzle for prechamber assembly with curved orifices, and method of making same Emerging Cross-Sectional Technologies 11 Active
US5580476A Combination catalyst wire wrapped a glow plug Mechanical Engineering; Lighting; Heating 11 Expired
US5975050A Method for determining the energy content of a fuel delivered to an engine Emerging Cross-Sectional Technologies 11 Expired
US5870978A Dual fuel engine which utilizes valve lubricant as a pilot fuel Emerging Cross-Sectional Technologies 11 Expired
US5601061A Engine intake air deflector Emerging Cross-Sectional Technologies 10 Expired
US7261097B2 EGR system for spark-ignited gasoline engine Emerging Cross-Sectional Technologies 10 Expired
US6386149B1 Method of operating an engine with a mixture of gaseous fuel and emulsified pilot fuel to reduce nitrogen oxide emissions Emerging Cross-Sectional Technologies 9 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.