Inventor · Monroeville, PA, US

David R. Markus

4Patents
3h-index
5Co-inventors
33Inventor score

Filing activity: Mar 21, 1991 → Dec 31, 1991

Most-cited inventions

PatentTitleAreaCited byStatus
US5264778A Apparatus protecting a synchronous machine from under excitation Emerging Cross-Sectional Technologies 57 Expired
US5315229A Minimum time delay filtering method for automatic voltage regulators Electricity 24 Expired
US5305234A Thermal protection apparatus for a synchronous machine Emerging Cross-Sectional Technologies 17 Expired
US5103162A Apparatus for determining when a preselected phase relationship exists between two periodic waveforms Physics 1 Expired

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