Inventor · disambiguated record
Michael Prein
Also filed as: PREIN MICHAEL
26 granted patents·6 pending applications·209 citations·filing 1999–2013
96Inventor score
Top patents by PatentIndex Score
32 records- 0190US8389664B2High molecular weight, random, bisphenol based copoly(phosphonate carbonate)sFREITAG DIETER·Filed 2011·Granted Mar 5, 2013·6 cites·30 claims
- 0287US6710211B1Method for the production of bisphenol-aBAYER AG·Filed 2000·Granted Mar 23, 2004·17 cites·3 claims
- 0385US6906227B2Bisphenol phenol adductsBAYER AG·Filed 2000·Granted Jun 14, 2005·16 cites·5 claims
- 0482US6291630B1Method for producing a liquid formulation of tetraphenylphosphonium phenolateBAYER AG·Filed 1999·Granted Sep 18, 2001·55 cites·4 claims
- 0581US6887970B2Method for producing polycarbonatesBAYER AG·Filed 2002·Granted May 3, 2005·15 cites·11 claims
- 0680US8648163B2High molecular weight, random, bisphenol based copoly(phosphonate carbonate)sFRX POLYMERS INC·Filed 2013·Granted Feb 11, 2014·2 cites·25 claims
- 0776US6723881B1Method for conditioning ion exchangersBAYER AG·Filed 2000·Granted Apr 20, 2004·16 cites·8 claims
- 0873US6828465B2Method for producing bisphenolsBAYER AG·Filed 2001·Granted Dec 7, 2004·6 cites·9 claims
- 0972US7582720B2Light-scattering shaped articles of high light transmission and the use thereof in flat screensBAYER MATERIALSCIENCE AG·Filed 2006·Granted Sep 1, 2009·3 cites·8 claims
- 1072US7301056B2Process for the separation of phenol from phenol-containing streams from the preparation of Bisphenol ABAYER MATERIALSCIENCE AG·Filed 2005·Granted Nov 27, 2007·2 cites·4 claims
- 1171US6703473B2Process for producing polycarbonateBAYER AG·Filed 2002·Granted Mar 9, 2004·9 cites·4 claims
- 1270US6723885B1Bisphenol productionBAYER AG·Filed 2000·Granted Apr 20, 2004·5 cites·12 claims
- 1370US6682794B1Polycarbonate containersBAYER AG·Filed 2000·Granted Jan 27, 2004·8 cites·10 claims
- 1467US6706848B1Method for producing polycarbonateBAYER AG·Filed 2000·Granted Mar 16, 2004·7 cites·6 claims
- 1564US7799889B2Polycarbonates with good wettabilityBAYER MATERIALSCIENCE AG·Filed 2005·Granted Sep 21, 2010·4 cites·9 claims
- 1664US6675844B2Method of loading moist, sticky bulk material into a fluid pervious containerBAYER AG·Filed 2002·Granted Jan 13, 2004·7 cites·8 claims
- 1762US6590128B1Initiation method of a method for producing 2,2-bis(4-hydroxyphenyl)propaneBAYER AG·Filed 2000·Granted Jul 8, 2003·6 cites·4 claims
- 1860US6919487B2Bis(4-hydroxyaryl)alkanesBAYER AG·Filed 2000·Granted Jul 19, 2005·2 cites·7 claims
- 1958US6683223B2Fluidised bisphenol dustBAYER AG·Filed 2000·Granted Jan 27, 2004·2 cites·6 claims
- 2054US2009137709A1Polyol-containing, flame-resistant polycarbonates, processes for preparing the same and products containing the sameBAYER MATERIALSCIENCE AG·Filed 2008·Application pending·0 cites
- 2150US6509406B1Plastic molding materials which can be detected by X-ray contrastBAYER AG·Filed 1999·Granted Jan 21, 2003·12 cites·2 claims
- 2249US6395864B1Polycarbonates with a low yellowness indexBAYER AG·Filed 1999·Granted May 28, 2002·9 cites·12 claims
- 2344US7763757B2Crystallization processes for producing bisphenolsBAYER MATERIALSCIENCE AG·Filed 2008·Granted Jul 27, 2010·0 cites·18 claims
- 2443US2002177684A1Process for producing polycarbonatesFiled 2002·Application pending·0 cites
- 2542US8410184B2Regeneration of acidic ion exchangersPREIN MICHAEL·Filed 2010·Granted Apr 2, 2013·0 cites·14 claims
- 2642US6710152B1Solid particlesBAYER AG·Filed 2000·Granted Mar 23, 2004·0 cites·9 claims
- 2742US2006132912A1Substrate materials for transparent injection-molded partsBAYER MATERIALSCIENCE AG·Filed 2005·Application pending·0 cites
- 2841US2006134366A1Substrate materials for transparent injection-molded partsBAYER MATERIALSCIENCE AG·Filed 2005·Application pending·0 cites
- 2939US2011112240A1Polycarbonates having improved transmissionBAYER MATERIALSCIENCE AG·Filed 2010·Application pending·0 cites
- 3038US7071283B2Reactive rectificationBAYER MATERIALSCIENCE AG·Filed 2001·Granted Jul 4, 2006·0 cites·2 claims
- 3138US6774268B2Substance mixture containing bisphenol ABAYER AG·Filed 2001·Granted Aug 10, 2004·0 cites·5 claims
- 3234US2002099163A1Reactive rectificationFiled 2001·Application pending·0 cites
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