Inventor · Havertown, PA, US

John W. McElroy

15Patents
7h-index
33Co-inventors
66Inventor score

Filing activity: Jul 28, 1980 → Dec 6, 2015

Most-cited inventions

PatentTitleAreaCited byStatus
US5008841A Non-invasive system and method for inspection of valves Emerging Cross-Sectional Technologies 53 Expired
US5477149A Method and apparatus for non-invasive monitoring of solenoid valves Emerging Cross-Sectional Technologies 41 Expired
US7257471B2 Communications device for remote control of rail track switches in a train yard Performing Operations; Transporting 18 Expired
US8805605B2 Scheduling system and method for a transportation network Performing Operations; Transporting 18 Active
US4317368A Acoustic emission warning system for a fiberglass member Physics 15 Expired
US9008933B2 Off-board scheduling system and method for adjusting a movement plan of a transportation network Performing Operations; Transporting 12 Active
US6574441B2 System for adding sound to pictures Physics 8 Expired
US8209205B1 Planning and scheduling tool assistant assuring high utilization of resources Emerging Cross-Sectional Technologies 4 Active
US5083109A Rotating source verification device Physics 3 Expired
US9694835B2 Detection system and method for rail vehicle Physics 2 Active
US9233697B2 Method and system for controlling a vehicle system factoring mass attributable to weather Physics 2 Active
US8452466B2 Methods and system for detecting railway vacancy Performing Operations; Transporting 1 Active
US9463818B2 Systems for controlling a vehicle system factoring mass attributable to weather Physics 1 Active
US8996293B2 System and method for determining a slack condition of a vehicle system Performing Operations; Transporting 0 Active
US8930126B2 Systems and methods for fuel consumption analysis Performing Operations; Transporting 0 Active

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