Assignee
MARTIN JOHN K
CA·7 granted patents·215 citations·filing 1976–2017
Top patents by PatentIndex Score
7 records- 0197US4150672AInjection device and methodMARTIN JOHN K·Filed 1976·Granted Apr 24, 1979·162 cites·18 claims
- 0274US10011954B1Rail seat crown and concrete rail tie having the sameMARTIN JOHN K·Filed 2017·Granted Jul 3, 2018·1 cites·10 claims
- 0372US4899933ARailway crossing insertMARTIN JOHN K·Filed 1987·Granted Feb 13, 1990·32 cites·20 claims
- 0456USD301435SRailway crossing insertMARTIN JOHN K·Filed 1987·Granted Jun 6, 1989·7 cites·1 claims
- 0553US4793615APuzzle with movable piecesMARTIN JOHN K·Filed 1987·Granted Dec 27, 1988·13 cites·9 claims
- 0631USD302409SRail insulatorMARTIN JOHN K·Filed 1986·Granted Jul 25, 1989·0 cites·1 claims
- 0730USD340084SChance gameMARTIN JOHN K·Filed 1991·Granted Oct 5, 1993·0 cites·1 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →