Assignee
JOHNSON DAVID S
2 granted patents·1 pending application·42 citations·filing 1979–2006
Top patents by PatentIndex Score
3 records- 0169US4871087AReusable container dispenser for ultra high purity chemicals and method of storageJOHNSON DAVID S·Filed 1988·Granted Oct 3, 1989·28 cites·20 claims
- 0256US4271648ASubterranean drain system for basementsJOHNSON DAVID S·Filed 1979·Granted Jun 9, 1981·14 cites·3 claims
- 0337US2007241079A1High voltage circuit breaker with re-fill valveJOHNSON DAVID S·Filed 2006·Application pending·0 cites
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