Inventor · disambiguated record
Hartwig Beyersdorf
Also filed as: BEYERSDORF HARTWIG
10 granted patents·144 citations·filing 1974–1991
89Inventor score
Top patents by PatentIndex Score
10 records- 0185US4207487AElectric machineBEYERSDORF HARTWIG·Filed 1976·Granted Jun 10, 1980·42 cites·8 claims
- 0279US4139770ASmoke alarmBEYERSDORF HARTWIG·Filed 1977·Granted Feb 13, 1979·32 cites·16 claims
- 0365US5008559AMethod for operating an optical smoke detector and optical smoke detector for the methodBEYERSDORF HARTWIG·Filed 1989·Granted Apr 16, 1991·31 cites·14 claims
- 0453US4037220ACircuit arrangement for monitoring interruptions in two closed-circuit loopsBEYERSDORF HARTWIG·Filed 1975·Granted Jul 19, 1977·12 cites·38 claims
- 0537US4213046AIonization fire-signal deviceBEYERSDORF HARTWIG·Filed 1978·Granted Jul 15, 1980·5 cites·11 claims
- 0636US3935465AIonization analyzing air pollution, smoke and fire alarm deviceGEBA GMBH & CO·Filed 1974·Granted Jan 27, 1976·3 cites·23 claims
- 0735US4056727AAttachment means of an object to a supportGEBA GES FUER BRANDMELDEANLAGE·Filed 1976·Granted Nov 1, 1977·6 cites·43 claims
- 0835US3963929AIonization analyzing air pollution, smoke and fire alarm deviceGEBA GMBH & CO·Filed 1975·Granted Jun 15, 1976·4 cites·19 claims
- 0933US5189399AMethod of operating an ionization smoke alarm and ionization smoke alarmBEYERSDORF HARTWIG·Filed 1991·Granted Feb 23, 1993·6 cites·30 claims
- 1032US4243981AIonization fire-signal deviceBEYERSDORF HARTWIG·Filed 1978·Granted Jan 6, 1981·3 cites·34 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →