Ulrich Riebel, Peter Khatchikian: Process and apparatus for measuring density and mass flow. Degussa Huls Aktiengesellschaft, Smith Gambrell & Russell, March 20, 2001: US06202494 (75 worldwide citation)

Measurement of density and mass flow of disperse systems with a gas as fluid phase flowing through a pipe is carried out by introducing sound in the frequency range 20-2,000 Hz in the middle of the cross-section of the pipe. The sound has a wavelength which is at least half the pipe diameter. The sp ...

Rainer Domesle, Ulrich Göbel, Lothar Mussmann, Egbert Lox, Thomas Kreuzer: Catalyst material. Degussa Huls Aktiengessellschaft, Kalow & Springut, November 5, 2002: US06475951 (64 worldwide citation)

A powdered catalyst material based on aluminum oxide, which contains at least one basic metal oxide and at least one noble metal from the platinum group of the Periodic Table of Elements in addition to aluminum oxide. The catalyst material is obtainable by loading a support material already stabiliz ...

Rainer Fuchs, Michael Huss, Thomas Luy: Method of combating phytopathogenic microorganisms in the water circuits of greenhouses. Degussa Huls, Pillsbury Madison & Sutro, August 1, 2000: US06096226 (48 worldwide citation)

The phytotoxic action of too high a concentration of peroxygen compounds such as peroxycarboxylic acids and hydrogen peroxide in the combating of phytopathogenic microorganisms, such as fusaria, in the water systems of plant irrigation systems, especially greenhouses, can be eliminated. The water is ...

Hubertus Eickhoff, Rüdiger Schütte: Bubble column and the use thereof. Degussa Huls, Pillsbury Winthrop, April 23, 2002: US06375921 (48 worldwide citation)

A bubble column can be operated using countercurrent flow including perforated trays. The space-time yield of gas-liquid reactions can be considerably increased if the perforated trays have a substantially uniform distribution of holes, if the cross-sectional area of the individual holes is 0.003 to ...

Stefan Wieland, Frank Baumann, Frank Adam, Stefan Andersch: Method of using catalyst for steam reforming of alcohols. Degussa Huls Aktiengesellschaft, Smith Gambrell & Russell, July 2, 2002: US06413449 (43 worldwide citation)

A catalyst is disclosed for the steam reforming of alcohols, which contains a palladium/zinc alloy and zinc oxide as catalytically active components. The alloy catalyst is a catalytically active component deposited on at least one support material which can be aluminum oxide, aluminum silicate, tita ...


Harald Klein, Wolfgang Strehlau, Egbert Lox, Thomas Kreuzer, Wilfried Müller: Catalyst for cleaning up the exhaust gases of a diesel engine. Degussa Huls Aktiengesellschaft, Kalow & Springut, January 13, 2004: US06677264 (39 worldwide citation)

A catalyst for purifying exhaust gases of a diesel engine. The catalyst contains two functional layers superimposed on an inert supporting body, whereby the first layer, which is situated directly on the supporting body, has a nitrogen oxide storage function and the second layer, which is in direct ...

Jurgen Leyrer, Dieter Lindner, Egbert Lox, Thomas Kreuzer, Wilfried Muller, Rainer Domesle: Diesel catalytic converter. Degussa Huls Aktiengesellschaft, Smith Gambrell & Russell Beveridge DeGrandi Weilacher & Young Intellectual Property Group, July 27, 1999: US05928981 (35 worldwide citation)

A catalyst for purifying the exhaust gases from diesel engines. The catalyst contains a zeolite mixture of several zeolites with different moduli and platinum group metals as well as further metal oxides from the group aluminum silicate, aluminum oxide and titanium oxide, wherein the aluminum silica ...

Jochen Alkemper, Harald Rentsch, Klaus Dermann, Hans Joachim Ritzhaupt Kleissl, Jurgen Hausselt, Philipp Albert, Corinna Gall: Dental material comprising porous glass ceramics, porous glass ceramics, processes and use. Degussa Huls Aktiengesellschaft, Pillsbury Winthrop, March 26, 2002: US06362251 (34 worldwide citation)

Dental material based on polymerizable (for example ethylenically unsaturated) monomers, epoxides, ormocers, liquid crystal monomers, oxethanes, spiro-orthoesters or spiro-carbonates as binders, a catalyst for cold, hot and/or photo-polymerization, and fillers, and a process for its preparation. Por ...

Thomas Lehmann, Patrik Stenner, Andreas Küver: Electrolysis cell. Degussa Huls, Pillsbury Winthrop, April 17, 2001: US06217728 (32 worldwide citation)

An electrolysis cell for carrying out chemical reactions include an electrolyte chamber (