Inventor · Madison, WI, US

Robert D. Lorenz

49Patents
18h-index
66Co-inventors
84Inventor score

Filing activity: Jun 28, 1985 → Aug 9, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US5341083A Contactless battery charging system Emerging Cross-Sectional Technologies 323 Expired
US5301096A Submersible contactless power delivery system Emerging Cross-Sectional Technologies 252 Expired
US5585709A Method and apparatus for transducerless position and velocity estimation in drives for AC machines Electricity 137 Expired
US6036919A Diagnostic test carrier with multilayer field Emerging Cross-Sectional Technologies 134 Expired
US5334923A Motor torque control method and apparatus Electricity 130 Expired
US5157319A Contactless battery charging system Emerging Cross-Sectional Technologies 127 Expired
US5565752A Method and apparatus for transducerless position and velocity estimation in drives for AC machines Electricity 124 Expired
US6314333A Method and apparatus for controlling web tension by actively controlling velocity and acceleration of a dancer roll Performing Operations; Transporting 120 Expired
US5341280A Contactless coaxial winding transformer power transfer system Emerging Cross-Sectional Technologies 102 Expired
US6473669B2 Controlling web tension, and accumulating lengths of web, by actively controlling velocity and acceleration of a festoon Performing Operations; Transporting 72 Expired
US5104811A Test carrier and method for the analytical determination of components of body fluids Emerging Cross-Sectional Technologies 64 Expired
US5559419A Method and apparatus for transducerless flux estimation in drives for induction machines Electricity 57 Expired
US5714831A Method and apparatus for improved control of piezoelectric positioners Emerging Cross-Sectional Technologies 53 Expired
US5261266A Sensor tip for a robotic gripper and method of manufacture Physics 51 Expired
US4708483A Optical measuring apparatus and method Physics 44 Expired
US5659480A Method for coordinating motion control of a multiple axis machine Emerging Cross-Sectional Technologies 43 Expired
US6714852B1 Observer for engine crankshaft torque Mechanical Engineering; Lighting; Heating 33 Expired
US6336070B1 Apparatus and method for engine crankshaft torque ripple control in a hybrid electric vehicle Emerging Cross-Sectional Technologies 22 Expired
US10784804B2 Magnetization state control method and magnetization state control device Electricity 18 Active
US5010773A Sensor tip for a robotic gripper and method of manufacture Emerging Cross-Sectional Technologies 17 Expired
US4982611A Multiple-degree-of-freedom sensor tip for a robotic gripper Physics 16 Expired
US6856850B2 Controlling web tension, and accumulating lengths of web, using a festoon Performing Operations; Transporting 12 Expired
US7695677B2 Glucose analysis instrument Emerging Cross-Sectional Technologies 8 Active
US9281772B2 Controller for power converter Electricity 6 Active
US9052293B2 Test method and test device for analysing a body fluid Physics 6 Active

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