Inventor · disambiguated record
Steffen Pfeiffer
Also filed as: PFEIFFER STEFFEN
5 granted patents·4 pending applications·31 citations·filing 1999–2017
72Inventor score
Files withAMI AGROLINZ MELAMINE INT GMBH2RATZSCH MANFRED2SCHAEFFLER TECHNOLOGIES AG2PANZER ULF1PFEIFFER STEFFEN1
Top patents by PatentIndex Score
9 records- 0172US7173104B2Products, especially moulding materials of polymers containing triazine segments, method for the production thereof and uses of the sameAMI AGROLINZ MELAMINE INT GMBH·Filed 2002·Granted Feb 6, 2007·12 cites·20 claims
- 0250US11187117B2Hydraulics unit for an internal combustion engine with hydraulically variable gas exchange valve gearSCHAEFFLER TECHNOLOGIES AG·Filed 2017·Granted Nov 30, 2021·0 cites·13 claims
- 0350US6403238B1Organic light-emitting diodes (OLED) including poly[2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylene-1,2-ethenylene-2,5-dimethoxy-1,4-phenylene-1,2-ethenylene] as electroluminescent materialFiled 1999·Granted Jun 11, 2002·19 cites·8 claims
- 0443US2009239978A1Melamine resinAMI AGROLINZ MELAMINE INT GMBH·Filed 2006·Application pending·0 cites
- 0541US8722779B2Thermoplastically processible aminoplastic resin, thermoset microfibre non-wovens, and process and plant for their productionPANZER ULF·Filed 2008·Granted May 13, 2014·0 cites·22 claims
- 0640US10900389B2Internal combustion engine with a hydraulically variable gas exchange valve trainSCHAEFFLER TECHNOLOGIES AG·Filed 2017·Granted Jan 26, 2021·0 cites·20 claims
- 0739US2007055040A1Method for the continuous synthesis of a liquid melamine resinRATZSCH MANFRED·Filed 2004·Application pending·0 cites
- 0838US2006252909A1Direct synthesis method for the production of etherified melamine resin condensates, melemine resin condensates, and use thereofPFEIFFER STEFFEN·Filed 2003·Application pending·0 cites
- 0935US2006100317A1Aminoplast molding compounds for products exhibiting an improved flexibility and aminoplast products exhibiting and improved flexibilityRATZSCH MANFRED·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →