Inventor · disambiguated record
Hartmut S. Engel
Also filed as: ENGEL HARTMUT · ENGEL HARTMUT S
51 granted patents·2 pending applications·1,038 citations·filing 1978–2020
99Inventor score
Files withENGEL HARTMUT S31501 Brillantleuchten AG2BRILLANTLEUCHTEN AG2FISCHER GMBH & CO ERNST2FROESCHER AUGUST GMBH CO KG2
Top patents by PatentIndex Score
53 records- 0197US4988145ASeating furnitureROEDER SOEHNE SITZMOEBELFAB·Filed 1989·Granted Jan 29, 1991·153 cites·34 claims
- 0292US6523974B2Lamp coverFiled 2001·Granted Feb 25, 2003·69 cites·8 claims
- 0392US4933820ALighting systemENGEL HARTMUT S·Filed 1989·Granted Jun 12, 1990·52 cites·1 claims
- 0491US4775922ALamp systemBRENDEL & LOEWIG LEUCHTENGESEL·Filed 1987·Granted Oct 4, 1988·83 cites·17 claims
- 0588USD568522SLighting fixtureENGEL HARTMUT S·Filed 2006·Granted May 6, 2008·29 cites·1 claims
- 0688US4525773ALight fixtureHESSE KURT·Filed 1983·Granted Jun 25, 1985·44 cites·6 claims
- 0786USD514731SLighting unitENGEL HARTMUT S·Filed 2004·Granted Feb 7, 2006·31 cites·1 claims
- 0886US4758887AConference tableWEYEL KG·Filed 1986·Granted Jul 19, 1988·77 cites·20 claims
- 0985USD386804SLight fixtureLuederlitz Licht GmbH·Filed 1995·Granted Nov 25, 1997·34 cites·1 claims
- 1085USD296480SDesk lamp501 Brillantleuchten AG·Filed 1984·Granted Jun 28, 1988·21 cites·1 claims
- 1184US8317354B2Lamp, especially suspended lamp, comprising a first and a second light emitting areaGASSNER PATRICK·Filed 2007·Granted Nov 27, 2012·32 cites·26 claims
- 1281US7841738B2Luminaire having light emitting diodes (leds) directed to a reflectorENGEL HARTMUT S·Filed 2008·Granted Nov 30, 2010·16 cites·20 claims
- 1380USD578237STri-light lighting fixtureENGEL HARTMUT S·Filed 2006·Granted Oct 7, 2008·19 cites·1 claims
- 1477US7465070B2Illumination deviceENGEL HARTMUT S·Filed 2004·Granted Dec 16, 2008·23 cites·20 claims
- 1576USD493244SLighting unitFiled 2001·Granted Jul 20, 2004·20 cites·1 claims
- 1675US7607795B2Locking mechanism for light fittingsENGEL HARTMUT S·Filed 2005·Granted Oct 27, 2009·9 cites·15 claims
- 1773US7874696B2Wall luminaireENGEL HARTMUT S·Filed 2008·Granted Jan 25, 2011·9 cites·24 claims
- 1873US7857493B2LuminaireENGEL HARTMUT S·Filed 2008·Granted Dec 28, 2010·7 cites·15 claims
- 1973USD481149SLightFiled 2001·Granted Oct 21, 2003·18 cites·1 claims
- 2072USD520172SLighting unitENGEL HARTMUT S·Filed 2005·Granted May 2, 2006·18 cites·1 claims
- 2170USD281292SChairFROESCHER AUGUST GMBH CO KG·Filed 1982·Granted Nov 12, 1985·10 cites·1 claims
- 2269USD574542SLampENGEL HARTMUT S·Filed 2006·Granted Aug 5, 2008·16 cites·1 claims
- 2367US4941412AModular working tableFISCHER GMBH & CO ERNST·Filed 1988·Granted Jul 17, 1990·31 cites·15 claims
- 2465US5062029AAdjustable spotlightENGEL HARTMUT S·Filed 1990·Granted Oct 29, 1991·28 cites·24 claims
- 2564USD290521SFloor lampBRILLANTLEUCHTEN AG·Filed 1984·Granted Jun 23, 1987·9 cites·1 claims
- 2663US7611257B2Lighting fixture closing mechanismENGEL HARTMUT S·Filed 2004·Granted Nov 3, 2009·9 cites·9 claims
- 2762USD573744SLampENGEL HARTMUT S·Filed 2006·Granted Jul 22, 2008·12 cites·1 claims
- 2862USD286818SDesk lamp501 Brillantleuchten AG·Filed 1984·Granted Nov 18, 1986·8 cites·1 claims
- 2960US7753550B2Recessed lighting fixtureENGEL HARTMUT S·Filed 2004·Granted Jul 13, 2010·9 cites·21 claims
- 3059US7914170B2Interior lightENGEL HARTMUT S·Filed 2006·Granted Mar 29, 2011·2 cites·23 claims
- 3159US7635207B2Recessed lightENGEL HARTMUT S·Filed 2005·Granted Dec 22, 2009·1 cites·16 claims
- 3259USD578692SDual-light lighting fixtureENGEL HARTMUT S·Filed 2006·Granted Oct 14, 2008·8 cites·1 claims
- 3359USD330940SLaboratory tableFISCHER GMBH & CO ERNST·Filed 1988·Granted Nov 10, 1992·8 cites·1 claims
- 3457US12031344B2Sanitary installation and associated angled doorENGEL HARTMUT S·Filed 2020·Granted Jul 9, 2024·0 cites·15 claims
- 3557US7744253B2Built-in lightENGEL HARTMUT S·Filed 2004·Granted Jun 29, 2010·6 cites·16 claims
- 3654US7780316B2Built-in lampENGEL HARTMUT S·Filed 2004·Granted Aug 24, 2010·5 cites·15 claims
- 3751USD341951SChairROEDER SOEHNE SITZMOEBELFAB·Filed 1990·Granted Dec 7, 1993·6 cites·1 claims
- 3851USD314872SChairFROESCHER AUGUST GMBH CO KG·Filed 1987·Granted Feb 26, 1991·5 cites·1 claims
- 3951US4850647AChairENGEL HARTMUT S·Filed 1987·Granted Jul 25, 1989·18 cites·42 claims
- 4050US2009034253A1LuminaireENGEL HARTMUT S·Filed 2008·Application pending·0 cites
- 4149US2013294074A1LampENGEL HARTMUT S·Filed 2013·Application pending·0 cites
- 4248US5685633ALamp for elongate lighting meansFiled 1995·Granted Nov 11, 1997·12 cites·18 claims
- 4347US7780308B2Recessed lightENGEL HARTMUT S·Filed 2006·Granted Aug 24, 2010·0 cites·26 claims
- 4447US5967646AOverhead lamp with elongated light source and flux splitting hour glass shaped globe mounted reflectorFiled 1997·Granted Oct 19, 1999·10 cites·10 claims
- 4547US4228487AComposite lamp assembly with detachable clamping meansSTAFF KG·Filed 1978·Granted Oct 14, 1980·12 cites·18 claims
- 4645US4991065ALighting systemENGEL HARTMUT S·Filed 1989·Granted Feb 5, 1991·12 cites·17 claims
- 4744US4772993AAdjustable lampBRENDEL & LOEWIG LEUCHTENGES·Filed 1987·Granted Sep 20, 1988·14 cites·20 claims
- 4844USD290520SFloor lampBRILLANTLEUCHTEN AG·Filed 1984·Granted Jun 23, 1987·3 cites·1 claims
- 4941US4731711ALighting systemENGEL HARTMUT S·Filed 1986·Granted Mar 15, 1988·10 cites·17 claims
- 5040USD573746SLampENGEL HARTMUT S·Filed 2006·Granted Jul 22, 2008·3 cites·1 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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