Inventor · Roanoke, VA, US

William Robert Pearson

25Patents
12h-index
32Co-inventors
81Inventor score

Filing activity: Jul 8, 1993 → Feb 5, 2014

Most-cited inventions

PatentTitleAreaCited byStatus
US5658259A Dental cartridge assembly auto-injector with protective needle cover Human Necessities 295 Expired
US5425715A Reloadable injector Human Necessities 217 Expired
US5868721A Injection device having anti-coring needle Human Necessities 129 Expired
US6794879B2 Apparatus and method for detecting and calculating ground fault resistance Physics 34 Expired
US5716348A Anti-coring needle Human Necessities 29 Expired
US6204642A Method and apparatus for modifying limit and protection software in a synchronous generator exciter to match the capability of the turbine-generator Electricity 27 Expired
US7544112B1 Method and apparatus for removing coatings from a substrate using multiple sequential steps Performing Operations; Transporting 25 Active
US6294898A Method and apparatus for modifying limit and protection software in a synchronous generator exciter to match the capability of the turbine-generator Electricity 23 Expired
US6099671A Method of adhering ceramic foams Chemistry; Metallurgy 18 Expired
US7896726B1 Method and apparatus for removing coatings from a substrate using multiple sequential steps Performing Operations; Transporting 17 Active
US5364363A Rectal administrator Human Necessities 14 Expired
US8131383B2 Method and system for rapid modeling and verification of excitation systems for synchronous generators Physics 14 Active
US7881814B2 Method and system for rapid modeling and verification of excitation systems for synchronous generators Physics 6 Active
US8622784B2 Method for selectively removing portions of an abradable coating using a water jet Mechanical Engineering; Lighting; Heating 6 Active
US7706157B2 Systems and methods involving balancing currents for thyristors Electricity 4 Active
US8423160B2 Systems and methods for controlling electronic circuitry with separated controllers Electricity 2 Active
US6839645B2 Method and apparatus to perform poly-phase instrumentation with single-phase instruments Electricity 1 Expired
US7104385B2 Railroad hopper car unloader Performing Operations; Transporting 1 Expired
US7916508B2 Systems and methods involving thyristors Electricity 0 Active
US9430012B2 Systems and methods of transformer failure detection and control Electricity 0 Active
US6255871A Method and apparatus for improving capture and lock characteristics of phase lock loops Electricity 0 Expired
US6911886B2 Flux coil system Electricity 0 Expired
US9157406B2 Systems and methods for initializing a generator Emerging Cross-Sectional Technologies 0 Active
US8898884B2 Optimised manufacturing process for a vaned monobloc disc by abrasive water jet Emerging Cross-Sectional Technologies 0 Active
US8869378B2 Optimised manufacturing process for a vaned monobloc disc by abrasive water jet Emerging Cross-Sectional Technologies 0 Active

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