Inventor · Marion, MA, US

Frederick W. MacDougall

25Patents
8h-index
9Co-inventors
68Inventor score

Filing activity: Aug 30, 1982 → Jun 30, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US4698725A Pressure sensitive interrupters for capacitors Electricity 90 Expired
US4694377A Segmented capacitor Electricity 23 Expired
US4992905A High current pressure sensitive interrupters Electricity 15 Expired
US4975796A Reverse discharge diode capacitor Electricity 15 Expired
US5717563A Electrode patterning in metallized electrode capacitors Electricity 12 Expired
US6211684A Internal unbalance detection in capacitors Physics 11 Expired
US7819050B1 Active armor system Emerging Cross-Sectional Technologies 10 Active
US6107808A Internal unbalance detection in capacitors Physics 8 Expired
US4586112A Capacitor with idler Electricity 7 Expired
US8074554B1 Active armor systems Emerging Cross-Sectional Technologies 6 Active
US6766793B2 Electromagnetic gun and rotating pulse forming network Emerging Cross-Sectional Technologies 5 Expired
US6965215B2 Capacitor pulse forming network with multiple pulse inductors Electricity 5 Expired
US6997173B2 Method for shipboard operation of electromagnetic gun and rotating pulse forming network Emerging Cross-Sectional Technologies 4 Expired
US5559404A Capacitive pulse forming network Electricity 4 Expired
US8069771B1 Active armor systems Emerging Cross-Sectional Technologies 2 Active
US7514820B2 Capacitor pulse forming network with multiple pulse inductors Emerging Cross-Sectional Technologies 2 Active
US6923106B2 Rotating pulse forming network for shipboard operation of electromagnetic gun and capacitor module Emerging Cross-Sectional Technologies 2 Expired
US4922375A Electrical capacitor Electricity 1 Expired
US11414962B2 Coalification and carbon sequestration using deep ocean hydrothermal borehole vents Emerging Cross-Sectional Technologies 1 Active
US8576074B2 Charged capacitor warning system and method Electricity 1 Active
US11026375B1 Systems and methods for rain cloud initiation Emerging Cross-Sectional Technologies 1 Active
US4549257A Voltage doubler circuit Electricity 0 Expired
US4467392A Capacitor resistor Electricity 0 Expired
US11794893B2 Transportation system for transporting organic payloads Performing Operations; Transporting 0 Active
US11330768B2 Systems and methods for producing rain clouds Emerging Cross-Sectional Technologies 0 Active

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