Inventor · Ann Arbor, MI, US

Gregory L. Ohl

15Patents
7h-index
28Co-inventors
62Inventor score

Filing activity: Jan 15, 1999 → Sep 23, 2009

Most-cited inventions

PatentTitleAreaCited byStatus
US6671603B2 Efficiency-based engine, powertrain and vehicle control Mechanical Engineering; Lighting; Heating 45 Expired
US7181332B1 Method for controlling an operating condition of a vehicle engine Mechanical Engineering; Lighting; Heating 25 Expired
US8352097B2 Method for managing power boost in a fuel cell powered aerial vehicle Emerging Cross-Sectional Technologies 23 Active
US7085647B1 Airflow-based output torque estimation for multi-displacement engine Mechanical Engineering; Lighting; Heating 20 Expired
US6148800A Injection temperature fuel feedback Mechanical Engineering; Lighting; Heating 14 Expired
US6430515B1 Method of determining barometric pressure for use in an internal combustion engine Mechanical Engineering; Lighting; Heating 10 Expired
US6188951A Engine friction characterization Mechanical Engineering; Lighting; Heating 8 Expired
US7013866B1 Airflow control for multiple-displacement engine during engine displacement transitions Mechanical Engineering; Lighting; Heating 6 Expired
US6176218A Stabilizing function for torque based idle control Mechanical Engineering; Lighting; Heating 6 Expired
US6675769B2 Air mass flow rate determination Mechanical Engineering; Lighting; Heating 3 Expired
US7097587B2 Ratio selection method for a continuously variable transmission Performing Operations; Transporting 3 Expired
US6705285B2 Air flow target determination Emerging Cross-Sectional Technologies 3 Expired
US7292928B2 Method for controlling an operating condition of a vehicle engine Mechanical Engineering; Lighting; Heating 3 Active
US6167877A Method of determining distribution of vapors in the intake manifold of a banked engine Mechanical Engineering; Lighting; Heating 1 Expired
US8442733B2 Method for detecting the performance of a skip shift device Emerging Cross-Sectional Technologies 0 Active

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