Inventor · Ames, IA, US

Michael D. Gandrud

17Patents
8h-index
11Co-inventors
65Inventor score

Filing activity: Jun 13, 2001 → Oct 24, 2012

Most-cited inventions

PatentTitleAreaCited byStatus
US7594377B1 Means of adjusting ground speed of a vehicle based on load on blade assembly Human Necessities 50 Active
US7182583B2 Electro-hydraulic power unit with a rotary cam hydraulic power unit Electricity 37 Expired
US6577141B2 System and method for capacitance sensing of pavement density Physics 33 Expired
US6817253B2 Method and means for measuring torque in hydraulic power units Physics 15 Expired
US6750621B2 Method and system for non-contact sensing of motion of a roller drum Fixed Constructions 15 Expired
US7640897B2 Fan design and method of operating Mechanical Engineering; Lighting; Heating 13 Active
US9188114B2 Charged hydraulic system Mechanical Engineering; Lighting; Heating 9 Active
US7011113B2 Hydraulic cartridge valve solenoid coil for direct mount to a printed circuit board Emerging Cross-Sectional Technologies 9 Expired
US6931847B1 Flow sharing priority circuit for open circuit systems with several actuators per pump Mechanical Engineering; Lighting; Heating 8 Expired
US7038339B2 Method and means of sealing an electrical conductor through the housing of a fluid filled motor Electricity 7 Expired
US7111458B2 Electrical loop flushing system Mechanical Engineering; Lighting; Heating 6 Expired
US6925892B2 Method and means for monitoring torque in a hydraulic power unit Performing Operations; Transporting 5 Expired
US7317290B2 Tandem battery powered inverter and method of implementing the same Emerging Cross-Sectional Technologies 5 Expired
US7316115B1 Means and method for controlling a hydromechanical transmission in dual mode Mechanical Engineering; Lighting; Heating 2 Expired
US7300260B1 Special fluids for use in a hydrostatic transmission Mechanical Engineering; Lighting; Heating 2 Expired
US9410544B2 Charged hydraulic system Mechanical Engineering; Lighting; Heating 0 Active
US8469677B1 Check valve pump with electric bypass valve Mechanical Engineering; Lighting; Heating 0 Active

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