Individual holder
NIEDERMEYER KARL O
13 granted patents·592 citations·filing 1974–1982
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
13 records- 0197US3941507ASafety supervisor for sump pumps and other hazardsNIEDERMEYER KARL O·Filed 1974·Granted Mar 2, 1976·101 cites·36 claims
- 0296US3972647AScreen for intake of emergency sump pumpNIEDERMEYER KARL O·Filed 1974·Granted Aug 3, 1976·76 cites·8 claims
- 0395US4228427AMonitor apparatus for sump pumpsNIEDERMEYER KARL O·Filed 1979·Granted Oct 14, 1980·84 cites·3 claims
- 0494US4087204AEnclosed sump pumpNIEDERMEYER KARL O·Filed 1976·Granted May 2, 1978·79 cites·12 claims
- 0592US4215975ASump pump with air column therein when pump is not operatingNIEDERMEYER KARL O·Filed 1978·Granted Aug 5, 1980·61 cites·5 claims
- 0688US4309157AProtection device and sump pumpNIEDERMEYER KARL O·Filed 1979·Granted Jan 5, 1982·48 cites·9 claims
- 0785US4228428AVisible signal for alarm, such as a smoke detectorNIEDERMEYER KARL O·Filed 1979·Granted Oct 14, 1980·36 cites·5 claims
- 0885US4086457AFloat switch signalling two different liquid levelsNIEDERMEYER KARL O·Filed 1976·Granted Apr 25, 1978·24 cites·10 claims
- 0980US3999890AEnclosed sump pumpNIEDERMEYER KARL O·Filed 1974·Granted Dec 28, 1976·30 cites·3 claims
- 1065US4461614AThrough flow sump pumpNIEDERMEYER KARL O·Filed 1982·Granted Jul 24, 1984·22 cites·13 claims
- 1150US4177021AThrough flow sump pumpNIEDERMEYER KARL O·Filed 1977·Granted Dec 4, 1979·13 cites·16 claims
- 1244US4201519AThrough flow sump pumpNIEDERMEYER KARL O·Filed 1979·Granted May 6, 1980·10 cites·3 claims
- 1340US4230440AThrough flow sump pumpNIEDERMEYER KARL O·Filed 1979·Granted Oct 28, 1980·8 cites·3 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →