Patents by Inventor Alfons Baiker
Alfons Baiker has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 8753601Abstract: Described is a method for the production of metal salts, wherein the cationic metal is preferably selected from Group I to IV metals and mixtures thereof and the anionic group is selected from phosphates, silicates, sulfates, carbonates, hydroxides, fluorides and mixtures thereof, and wherein said method comprises forming a mixture of at least one metal source that is a metal carboxylate with a mean carbon value per carboxylate group of at least 3 and at least one anion source into droplets and oxiding said droplets in a high temperature environment, preferably a flame. This method is especially suited for the production of calcium phosphate biomaterials such as hydroxyapatite (HAp,Ca10(PO4)6(OH)2) and tricalcium phosphate (TCP,Ca3(PO4)2) that exhibit excellent biocompatibility and osteoconductivity and therefore are widely used for reparation of bony or periodontal defects, coating of metallic implants and bone space fillers.Type: GrantFiled: December 6, 2010Date of Patent: June 17, 2014Assignee: Eidgenossische Technische Hochschule ZurichInventors: Wendelin Jan Stark, Sotiris-Emmanuel Pratsinis, Marek Maciejewski, Stefan Fridolin Loher, Alfons Baiker
-
Publication number: 20110150737Abstract: Described is a method for the production of metal salts, wherein the cationic metal is preferably selected from Group I to IV metals and mixtures thereof and the anionic group is selected from phosphates, silicates, sulfates, carbonates, hydroxides, fluorides and mixtures thereof, and wherein said method comprises forming a mixture of at least one metal source that is a metal carboxylate with a mean carbon value per carboxylate group of at least 3 and at least one anion source into droplets and oxiding said droplets in a high temperature environment, preferably a flame. This method is especially suited for the production of calcium phosphate biomaterials such as hydroxyapatite (HAp,Ca10(PO4)6(OH)2) and tricalcium phosphate (TCP,Ca3(PO4)2) that exhibit excellent biocompatibility and osteoconductivity and therefore are widely used for reparation of bony or periodontal defects, coating of metallic implants and bone space fillers.Type: ApplicationFiled: December 6, 2010Publication date: June 23, 2011Inventors: Wendelin Jan Stark, Sotiris-Emmanuel Pratsinis, Marek Maciejewski, Stefan Fridolin Loher, Alfons Baiker
-
Patent number: 7879303Abstract: Described is a method for the production of metal salts, wherein the cationic metal is preferably selected from Group I to IV metals and mixtures thereof and the anionic group is selected from phosphates, silicates, sulfates, carbonates, hydroxides, fluorides and mixtures thereof, and wherein said method comprises forming a mixture of at least one metal source that is a metal carboxylate with a mean carbon value per carboxylate group of at least 3 and at least one anion source into droplets and oxiding said droplets in a high temperature environment, preferably a flame. This method is especially suited for the production of calcium phosphate biomaterials such as hydroxyapatite (HAp,Cal0(P04)6(OH)2) and tricalcium phosphate (TCP,Ca3(P04)2) that exhibit excellent biocompatibility and osteoconductivity and therefore are widely used for reparation of bony or periodontal defects, coating of metallic implants and bone space fillers.Type: GrantFiled: March 15, 2004Date of Patent: February 1, 2011Assignee: Eidgenossische Technische Hochschule ZurichInventors: Wendelin Jan Stark, Sotiris-Emmanuel Pratsinis, Marek Maciejewski, Stefan Fridolin Loher, Alfons Baiker
-
Patent number: 7638452Abstract: Nitrogen oxide storage catalysts are used for removing the nitrogen oxides present in the lean-burn exhaust gas of lean-burn engines. Here, the purifying action is based on the nitrogen oxides being stored in the form of nitrates by the storage material of the storage catalyst during a lean-burn operating phase of the engine and the previously formed nitrates being decomposed in a subsequent rich-burn operating phase of the engine and the nitrogen oxides which are being liberated again being reacted with the reducing exhaust gas constituents over the storage catalyst to form nitrogen, carbon dioxide and water. Storage catalysts are thermally aged by high temperatures. The aging is due to sintering of the catalytically active noble metal components of the catalyst and to formation of compounds of the storage components with the support materials.Type: GrantFiled: July 15, 2006Date of Patent: December 29, 2009Assignee: Umicore AG & Co. KGInventors: Meike Wittrock, Ulrich Goebel, Thomas Kreuzer, Christina Maria Casapu, Jan-Dierk Grunwaldt, Marek Maciejewski, Alfons Baiker
-
Publication number: 20090131243Abstract: Nitrogen oxide storage catalysts are used for removing the nitrogen oxides present in the lean-burn exhaust gas of lean-burn engines. Here, the purifying action is based on the nitrogen oxides being stored in the form of nitrates by the storage material of the storage catalyst during a lean-burn operating phase of the engine and the previously formed nitrates being decomposed in a subsequent rich-burn operating phase of the engine and the nitrogen oxides which are being liberated again being reacted with the reducing exhaust gas constituents over the storage catalyst to form nitrogen, carbon dioxide and water. Storage catalysts are thermally aged by high temperatures. The aging is due to sintering of the catalytically active noble metal components of the catalyst and to formation of compounds of the storage components with the support materials.Type: ApplicationFiled: July 15, 2006Publication date: May 21, 2009Inventors: Meike Wittrock, Ulrich Goebel, Thomas Kreuzer, Cristina Maria Casapu, Jan-Dierk Grunwaldt, Marek Maciejewski, Alfons Baiker
-
Publication number: 20070196259Abstract: Described is a method for the production of metal salts, wherein the cationic metal is preferably selected from Group I to IV metals and mixtures thereof and the anionic group is selected from phosphates, silicates, sulfates, carbonates, hydroxides, fluorides and mixtures thereof, and wherein said method comprises forming a mixture of at least one metal source that is a metal carboxylate with a mean carbon value per carboxylate group of at least 3 and at least one anion source into droplets and oxiding said droplets in a high temperature environment, preferably a flame. This method is especially suited for the production of calcium phosphate biomaterials such as hydroxyapatite (HAp,Cal0(P04)6(OH)2) and tricalcium phosphate (TCP,Ca3(P04)2) that exhibit excellent biocompatibility and osteoconductivity and therefore are widely used for reparation of bony or periodontal defects, coating of metallic implants and bone space fillers.Type: ApplicationFiled: March 15, 2004Publication date: August 23, 2007Inventors: Wendelin Stark, Sotiris-Emmanuel Pratsinis, Marek Maciejewski, Stefan Loher, Alfons Baiker
-
Publication number: 20040120883Abstract: The process for the production of molybdenum oxide is characterized in that molybdic acid is intercalated by a template to obtain a molybdenum oxide composite and wherein the template is removed subsequently using an acid. The molybdenum oxid is nanoscopic and has a fibrous morphology. The fibres are tangled together forming bundles.Type: ApplicationFiled: January 14, 2004Publication date: June 24, 2004Inventors: Reinhard Nesper, Frank Krumeich, Markus Niederberger, Alfons Baiker, Florian Eigenheim
-
Patent number: 6646135Abstract: The invention relates to a continuous process for enantioselective catalytic hydrogenation of an alpha ketocarbonyl compound such as alpha ketoesters and alpha ketolactones to produce an alpha hydroxy carbonyl compound.Type: GrantFiled: May 10, 2000Date of Patent: November 11, 2003Assignee: Roche Vitamins Inc.Inventors: Alfons Baiker, Niklaus Künzle, Tamas Mallat
-
Patent number: 6376713Abstract: A single-stage process is described for the preparation of primary aliphatic polyamines of the formula in which R1 and R2 independently of one another are hydrogen, methyl, ethyl or aminomethyl, by reaction of polyalcohols on a Co/Ni catalyst with supercritical ammonia in the presence of hydrogen.Type: GrantFiled: September 27, 2000Date of Patent: April 23, 2002Assignee: Lonza AGInventors: Alfons Baiker, Achim Fischer, Tamas Mallat, Oleg Werbitzky
-
Patent number: 6369274Abstract: 1,n-cyclohexanediamines (n=2, 3, 4) of general formula (I), wherein one of the radicals R1 to R3 is an amino group and the two others mean hydrogen, are produced from the corresponding cyclohexanediols and ammonia in the presence of a catalyst containing cobalt, at 100° to 350° C. and 50 to 300 bar. The compounds that can be produced according to the invention are structural elements for polymers, especially polyamides, polyimides, polyurea or polyurethanes, and ligands for cytostatically effective transition metal complexes.Type: GrantFiled: July 20, 2001Date of Patent: April 9, 2002Assignee: Lonza AGInventors: Alfons Baiker, Tamas Mallat, Achim Fischer
-
Patent number: 5935895Abstract: A silica-titania mixed oxide catalyst and its method of manufacture is disclosed. Such catalysts can be used especially to catalyze the epoxidation of olefinically unsaturated compounds with organic hydroperoxides.Type: GrantFiled: March 18, 1997Date of Patent: August 10, 1999Assignee: Roche Vitamins Inc.Inventors: Alfons Baiker, Dominique Dutoit, Remo Hutter
-
Patent number: 4978513Abstract: New activated palladium zirconium oxide catalysts on the basis of amorphous or crystallized alloys as well as new palladium zirconium oxide precipitation catalysts. The new catalysts are suitable for totally oxidizing carbon monoxide and hydrocarbons.Type: GrantFiled: January 4, 1989Date of Patent: December 18, 1990Assignee: Lonza Ltd.Inventors: Alfons Baiker, Daniel Gasser
-
Patent number: 4916109Abstract: New activated palladium zirconium oxide catalysts on the basis of amorphous or crystallized alloys as well as new palladium zirconium oxide precipitation catalysts. The new catalysts are suitable for totally oxidizing carbon monoxide and hydrocarbons.Type: GrantFiled: July 13, 1988Date of Patent: April 10, 1990Assignee: Lonza Ltd.Inventors: Alfons Baiker, Daniel Gasser
-
Patent number: 4789533Abstract: Catalyst for the reductive conversion of nitrogen oxides, optionally accompanied by sulfur dioxides, in waste gases, produced by the impregnation of a support, for example, a TiO.sub.2 support, with a vanadium alkoxide, and treatment of the impregnated support in the oxygen-containing gas current. The catalyst brings about a conversion of the nitrogen oxides even at a relatively low temperature of 150.degree. to 350.degree. C.Type: GrantFiled: June 3, 1987Date of Patent: December 6, 1988Assignee: Lonza Ltd.Inventors: Alfons Baiker, Peter Dollenmeier, Marek Glinski
-
Patent number: 4742037Abstract: Catalyst for the reductive conversion of nitrogen oxides, optionally accompanied by sulfur dioxides, in waste gases, produced by the impregnation of a support, for example, a TiO.sub.2 support, with a vanadium alkoxide, and treatment of the impregnated support in the oxygen-containing gas current. The catalyst brings about a conversion of the nitrogen oxides even at a relatively low temperature of 150.degree. to 350.degree. C.Type: GrantFiled: March 18, 1987Date of Patent: May 3, 1988Assignee: Lonza Ltd.Inventors: Alfons Baiker, Peter Dollenmeier, Marek Glinski
-
Patent number: 4727202Abstract: Catalytically-active metallic glasses containing at least one element from a subgroup of the periodic system and at least one element from a main group of the periodic system. Process for the production of catalytically-active metallic glasses where the metallic glass is produced from at least one element from a subgroup of the periodic system and at least from one element from a main group of the periodic system. The metallic glasses are activated by self-activation or by an oxidative and/or reductive treatment. The catalytically-active metallic glasses can be used as hydrogenation, oxidation or isomerization catalysts.Type: GrantFiled: May 18, 1987Date of Patent: February 23, 1988Assignee: Lonza Ltd.Inventors: Volker Franzen, Hans-Joachim Guntherodt, Alfons Baiker, Erich Armbruster, Halim Baris