Inventor · disambiguated record
Helmut Seifert
Also filed as: SEIFERT HELMUT
27 granted patents·5 pending applications·418 citations·filing 1975–2014
97Inventor score
Top patents by PatentIndex Score
32 records- 0194US9310197B2Measuring device for measuring distanceGOGOLLA TORSTEN·Filed 2012·Granted Apr 12, 2016·48 cites·18 claims
- 0289US6917415B2Method of and apparatus for electro-optical distance measurementHILTI AG·Filed 2002·Granted Jul 12, 2005·83 cites·112 claims
- 0386US9261362B2Measuring device for distance measurementHILTI AG·Filed 2014·Granted Feb 16, 2016·12 cites·17 claims
- 0486US7023531B2Laser distance measuring device with phase delay measurementHILTI AG·Filed 2003·Granted Apr 4, 2006·66 cites·11 claims
- 0581US8767188B2Measuring device for distance measurementGOGOLLA TORSTEN·Filed 2012·Granted Jul 1, 2014·8 cites·13 claims
- 0678US6950639B2Local oscillator for generating an HF signal for direct mixing by using avalanche photodiodesHILTI AG·Filed 2001·Granted Sep 27, 2005·23 cites·20 claims
- 0769US6781675B2Electro-optical para-axial distance measuring systemHILTI AG·Filed 2003·Granted Aug 24, 2004·27 cites·8 claims
- 0865US8467036B2Laser instrument for electro-optical distance measurementGOGOLLA TORSTEN·Filed 2010·Granted Jun 18, 2013·3 cites·10 claims
- 0963US7940378B2Hand-held laser distance measuring device with a pulse reflection mixing methodHILTI AG·Filed 2008·Granted May 10, 2011·5 cites·13 claims
- 1063US4366934ARoll-up device for safety beltREPA FEINSTANZWERK GMBH·Filed 1981·Granted Jan 4, 1983·17 cites·11 claims
- 1162US7548829B2Hand-held pulse laser distance measuring deviceHILTI AG·Filed 2005·Granted Jun 16, 2009·5 cites·4 claims
- 1262US4307852ARoll-up device for safety beltREPA FEINSTANZWERK GMBH·Filed 1979·Granted Dec 29, 1981·16 cites·1 claims
- 1358US6603534B2Laser range finder for large ranges of measurement with a special receiverJENOPTIK LASER OPTIK SYS GMBH·Filed 2001·Granted Aug 5, 2003·18 cites·6 claims
- 1457US7456936B2Electro-optical hand-held distance measuring instrumentHILTI AG·Filed 2004·Granted Nov 25, 2008·11 cites·20 claims
- 1553US8068215B2Laser distance meterGOGOLLA TORSTEN·Filed 2008·Granted Nov 29, 2011·2 cites·8 claims
- 1651US4258887ASafety belt roll-up deviceREPA FEINSTANZWERK GMBH·Filed 1979·Granted Mar 31, 1981·11 cites·9 claims
- 1750US7714990B2Hand-held laser distance measuring device with a pulse reflection mixing methodHILTI AG·Filed 2008·Granted May 11, 2010·1 cites·12 claims
- 1850US4277036AAutomatic wind-up roller for a safety beltREPA FEINSTANZWERK GMBH·Filed 1979·Granted Jul 7, 1981·9 cites·1 claims
- 1948US7600997B2Method for increasing the throughput of packages in rotary tubular kiln apparatusKARLSRUHE FORSCHZENT·Filed 2007·Granted Oct 13, 2009·1 cites·9 claims
- 2048US4618165ADeflection device for safety beltsREPA FEINSTANZWERK GMBH·Filed 1985·Granted Oct 21, 1986·13 cites·3 claims
- 2147US4369932AAutomatic wind-up roller for a safety beltREPA FEINSTANZWERK GMBH·Filed 1981·Granted Jan 25, 1983·8 cites·4 claims
- 2246US2010166623A1Device for the thermal dehalogenation of halogen-containing substancesKARLSRUHE FORSCHZENT·Filed 2006·Application pending·0 cites
- 2343US2013162971A1Optical systemHILTI AG·Filed 2012·Application pending·0 cites
- 2439US4318552ADeflection device for safety beltsREPA FEINSTANZWERK GMBH·Filed 1979·Granted Mar 9, 1982·7 cites·4 claims
- 2538US2011030591A1Incineration plant with heat insulating layer on the wet slagKARLSRUHER INST TECHNOLOGIE·Filed 2010·Application pending·0 cites
- 2638US2006132754A1Hand-held laser distance measuring device with a pulse reflection mixing methodHILTI AG·Filed 2005·Application pending·0 cites
- 2737US2010309453A1Laser instrument for electro-optical distance measurementHILTI AG·Filed 2010·Application pending·0 cites
- 2836US6281968B1Laser distance-measuring instrument for large measuring rangesJENOPTIK JENA GMBH·Filed 1999·Granted Aug 28, 2001·14 cites·7 claims
- 2932US4508286ADeflection device for safety beltsREPA FEINSTANZWERK GMBH·Filed 1979·Granted Apr 2, 1985·3 cites·6 claims
- 3027US5402946AExploitation of plastic wastesBASF AG·Filed 1993·Granted Apr 4, 1995·5 cites·7 claims
- 3127US4080130AApparatus for extruding, lining and pressing clay blanksCONTINENTAL CHINA·Filed 1975·Granted Mar 21, 1978·2 cites·2 claims
- 3224US7060242B2Method for treating waste materials containing halogenKARLSRUHE FORSCHZENT·Filed 2005·Granted Jun 13, 2006·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →