Inventor · disambiguated record
W. John Ballantyne
Also filed as: BALLANTYNE JOHN W · BALLANTYNE W JOHN
3 granted patents·106 citations·filing 1985–1995
74Inventor score
Top patents by PatentIndex Score
3 records- 0188US4635560AContactless powering of LIM vehicle electrical system by recovery of LIM slip powerURBAN TRANSPORTATION DEV·Filed 1985·Granted Jan 13, 1987·74 cites·6 claims
- 0258US5675095ARotational torque sensorCANADIAN SPACE AGENCY·Filed 1995·Granted Oct 7, 1997·24 cites·9 claims
- 0338US5127337AReaction railURBAN TRANSPORTATION DEV·Filed 1991·Granted Jul 7, 1992·8 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →