Assignee
HACH CHEMICAL CO
7 granted patents·151 citations·filing 1974–1980
Top patents by PatentIndex Score
7 records- 0189US4086062ADigital titration deviceHACH CHEMICAL CO·Filed 1977·Granted Apr 25, 1978·46 cites·6 claims
- 0279US4053282AMethod and apparatus for sampling impure waterHACH CHEMICAL CO·Filed 1976·Granted Oct 11, 1977·29 cites·7 claims
- 0376US3953136AMethod and apparatus for automatically analyzing fluidsHACH CHEMICAL CO·Filed 1974·Granted Apr 27, 1976·26 cites·5 claims
- 0455US4025309ACarbon nitrogen test systemHACH CHEMICAL CO·Filed 1976·Granted May 24, 1977·13 cites·4 claims
- 0553US4288308AContinuous pH meterHACH CHEMICAL CO·Filed 1980·Granted Sep 8, 1981·14 cites·6 claims
- 0650US4329149AMethod for spectrophotometric compensation for colorimetric reagent variationHACH CHEMICAL CO·Filed 1980·Granted May 11, 1982·14 cites·6 claims
- 0733US4249069AFlask heater assemblyHACH CHEMICAL CO·Filed 1978·Granted Feb 3, 1981·9 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →