Individual holder
KRATZ DAVID W
4 granted patents·225 citations·filing 1974–1979
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0194US4199001AChemical feederKRATZ DAVID W·Filed 1978·Granted Apr 22, 1980·119 cites·23 claims
- 0289US4250911AChemical feeder with disposable chemical containerKRATZ DAVID W·Filed 1979·Granted Feb 17, 1981·70 cites·6 claims
- 0377US3945335ABoat docking deviceKRATZ DAVID W·Filed 1974·Granted Mar 23, 1976·29 cites·14 claims
- 0461USD251675SChlorinatorKRATZ DAVID W·Filed 1977·Granted Apr 24, 1979·7 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →