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Bernhard Rieger, Hans Brintzinger, Werner Roell, Annette Reinmuth, Elke Barsties: Soluble catalyst systems for the polymerization of C.sub.2 - to C.sub.10 -alk-l-enes. BASF Aktiengesellschaft, Keil & Weinkauf, July 21, 1992: US05132262 (123 worldwide citation)

The present invention relates to soluble catalyst systems for the polymerization of C.sub.2 - to C.sub.10 -alk-l-enes, containing, as active constituents,


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Georg Weber, Ludwig Pohl, Reinhard Hittich, Herbert Plach, Bernhard Scheuble, Takamasa Oyama, Bernhard Rieger, Hans Kurmeier, Ekkehard Bartmann: Matrix liquid crystal display. Merck Patent Gesellschaft mit beschrankter Haftung, Millen White & Zelano, June 16, 1992: US05122295 (54 worldwide citation)

The invention relates to a matrix liquid crystal display containing integrated non-linear elements and a liquid crystal mixture which has a particularly high resistivity.


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Franz Langhauser, Hans Joachim M uller, J urgen Kerth, G unther Schweier, Bernhard Rieger: Preparation of bridged half sandwich complexes. BASF Aktiengesellschaft, Keil & Weinkauf, April 15, 1997: US05621127 (49 worldwide citation)

Bridged half sandwich complexes are prepared by reacting cyclopentadienides with aziridines and subsequently adding metallating agents and transition metal compounds.


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Bernhard Rieger: Linear, isotactic polymers, process for preparing same, and use thereof. Leydig Voit & Mayer, April 29, 2003: US06555643 (41 worldwide citation)

The invention refers to a linear, isotactic polymer which has a structure of one or several C


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Bernhard Scheuble, Bernhard Rieger, Dieter Dorsch: Electro-optical system containing a compensating film. Merck Patent Gesellschaft mit beschrankter Haftung, Millen White Zelano & Branigan, May 3, 1994: US05308535 (30 worldwide citation)

The invention relates to electro-optical systems containing an addressable liquid-crystal layer and a device for compensating for the optical path difference d.multidot..DELTA.n of the addressable liquid-crystal layers, the compensating device being based on a liquid-crystalline polymer.


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Bernhard Rieger, Reinhard Hittich, Eike Poetsch, David Coates, Herbert Plach: Liquid-crystalline medium. Merck Patent Gesellschaft mit beschrankter Haftung, Millen White Zelano & Branigan, November 29, 1994: US05368772 (23 worldwide citation)

The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it contains one or more compounds of the general formula I ##STR1## in which Hal is fluorine or chlorine and R is alkyl, oxaalkyl, fluoroalkyl or alkeny ...


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Bernhard Rieger, Reinhard Hittich, Volker Reiffenrath, David Coates, Hans A Kurmeier, Herbert Plach: Liquid-crystalline medium. Merck Patent Gesellschaft mit beschrankter Haftung, Millen White Zelano & Branigan, February 15, 1994: US05286411 (23 worldwide citation)

The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it contains one or more compounds of the general formula I ##STR1## in which L is H or F, X is F, Cl, CF.sub.3, OCF.sub.3 or OCHF.sub.2, and R is alkyl, ...


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Herbert Plach, Bernhard Rieger, Volker Reiffenrath, Eike Poetsch: Liquid crystal display. Merck Patent Gesellschaft Mit Beschrankter Haftung, Millen White Zelano & Branigan P C, November 26, 1996: US05578241 (20 worldwide citation)

The invention relates to a liquid crystal display element which contains an electrically switchable, dielectrically positive twisted nematic liquid crystal layer between two substrates which together with a frame form a cell, and two layers with alignment layers thereon applied to the substrates. Th ...