Individual holder
JORRITSMA JOHANNES N
CA·7 granted patents·295 citations·filing 1982–1992
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
7 records- 0192US5190442AElectronic pumpcontrol systemJORRITSMA JOHANNES N·Filed 1991·Granted Mar 2, 1993·92 cites·22 claims
- 0292US4821580AMethod and apparatus for calculating flow rates through a pumping stationJORRITSMA JOHANNES N·Filed 1988·Granted Apr 18, 1989·73 cites·18 claims
- 0380US5178427ASelf-releasing lift hookJORRITSMA JOHANNES N·Filed 1992·Granted Jan 12, 1993·35 cites·20 claims
- 0477US4669308AMethod and apparatus for determining liquid flow ratesJORRITSMA JOHANNES N·Filed 1985·Granted Jun 2, 1987·38 cites·10 claims
- 0575US4455870AMethod and apparatus for determining liquid flow ratesJORRITSMA JOHANNES N·Filed 1982·Granted Jun 26, 1984·28 cites·13 claims
- 0644US5063778AApparatus for measuring the level of a liquid in a wetwellJORRITSMA JOHANNES N·Filed 1990·Granted Nov 12, 1991·19 cites·8 claims
- 0741US5182951AMethod and aparatus for calculating flow rates through a pumping stationJORRITSMA JOHANNES N·Filed 1990·Granted Feb 2, 1993·10 cites·6 claims
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