Patents by Inventor Wenchun Chao
Wenchun Chao 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).
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Patent number: 8765754Abstract: A compound of formula (I): wherein all symbols have the same meanings as defined in the specification; a salt thereof, a solvate thereof, an N-oxide thereof, or a prodrug thereof, has a Btk inhibitory activity, and is useful as a method for preventing and/or treating a rheumatoid arthritis, an autoimmune disease, a B cell lymphoma of cancer, and the like.Type: GrantFiled: April 28, 2010Date of Patent: July 1, 2014Assignee: Locus Pharmaceuticals, Inc.Inventors: Zenon Konteatis, Kristofer Moffett, Younghee Lee, Wenchun Chao, Dora Do-York Wong
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Publication number: 20120232054Abstract: A compound of formula (I): wherein all symbols have the same meanings as defined in the specification; a salt thereof, a solvate thereof, an N-oxide thereof, or a prodrug thereof, has a Btk inhibitory activity, and is useful as a method for preventing and/or treating a rheumatoid arthritis, an autoimmune disease, a B cell lymphoma of cancer, and the like.Type: ApplicationFiled: April 28, 2010Publication date: September 13, 2012Applicant: LOCUS PHARMACEUTICALS, INC.Inventors: Kevin J. Moriarty, Dora Do-York Wong, Zenon Konteatis, Kristofer Moffett, Younghee Lee, Wenchun Chao
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Patent number: 6759439Abstract: A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In accordance with this invention, the catalyst used in the process preferably includes at least cobalt, rhenium, and a promoter selected from the group including boron, phosphorus, potassium, manganese, and vanadium. The catalyst may also comprise a support material selected from the group including silica, titania, titania/alumina, zirconia, alumina, aluminum fluoride, and fluorided aluminas.Type: GrantFiled: December 3, 2002Date of Patent: July 6, 2004Assignee: ConocoPhillips CompanyInventors: Wenchun Chao, Kamel M. Makar, Leo E. Manzer, Munirpallam A. Subramanian
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Patent number: 6727289Abstract: A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In accordance with this invention, the catalyst used in the process includes at least a Fischer-Tropsch metal and boron. The Fischer-Tropsch metal preferably includes cobalt and optionally ruthenium or platinum. The catalyst may also comprise a support material selected from the group including silica, titania, titania/alumina, zirconia, alumina, aluminum fluoride, and fluorided aluminas.Type: GrantFiled: January 14, 2002Date of Patent: April 27, 2004Assignee: ConocoPhillips CompanyInventors: Olga Ionkina, Wenchun Chao, Munirpallam A. Subramanian, Leo E. Manzer, Kamel M. Makar, Ajoy P. Raje
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Publication number: 20030119922Abstract: A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In accordance with this invention, the catalyst used in the process preferably includes at least cobalt, rhenium, and a promoter selected from the group including boron, phosphorus, potassium, manganese, and vanadium. The catalyst may also comprise a support material selected from the group including silica, titania, titania/alumina, zirconia, alumina, aluminum fluoride, and fluorided aluminas.Type: ApplicationFiled: December 3, 2002Publication date: June 26, 2003Inventors: Wenchun Chao, Kamel M. Makar, Leo E. Manzer, Munirpallam A. Subramanian
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Patent number: 6489371Abstract: A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In accordance with this invention, the catalyst used in the process preferably includes at least cobalt, rhenium, and a promoter selected from the group including boron, phosphorus, potassium, manganese, and vanadium. The catalyst may also comprise a support material selected from the group including silica, titania, titania/alumina, zirconia, alumina, aluminum fluoride, and fluorided aluminas.Type: GrantFiled: August 24, 2001Date of Patent: December 3, 2002Assignee: Conoco Inc.Inventors: Wenchun Chao, Kamel M. Makar, Leo E. Manzer, Munirpallam A. Subramanian
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Publication number: 20020173555Abstract: A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In accordance with this invention, the catalyst used in the process includes at least a Fischer-Tropsch metal and boron. The Fischer-Tropsch metal preferably includes cobalt and optionally ruthenium or platinum. The catalyst may also comprise a support material selected from the group including silica, titania, titania/alumina, zirconia, alumina, aluminum fluoride, and fluorided aluminas.Type: ApplicationFiled: January 14, 2002Publication date: November 21, 2002Applicant: Conoco Inc.Inventors: Olga Ionkina, Wenchun Chao, Munirpallam A. Subramanian, Leo E. Manzer, Kamel M. Makar, Ajoy P. Raje
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Publication number: 20020045671Abstract: A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In accordance with this invention, the catalyst used in the process preferably includes at least cobalt, rhenium, and a promoter selected from the group including boron, phosphorus, potassium, manganese, and vanadium. The catalyst may also comprise a support material selected from the group including silica, titania, titania/alumina, zirconia, alumina, aluminum fluoride, and fluorided aluminas.Type: ApplicationFiled: August 24, 2001Publication date: April 18, 2002Inventors: Wenchun Chao, Kamel M. Makar, Leo E. Manzer, Munirpallam A. Subramanian
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Publication number: 20020010221Abstract: A catalyst useful for the production of hydrocarbons from synthesis gas, in the Fischer-Tropsch reaction, is disclosed. The catalyst includes cobalt and rhenium and may be supported on an alumina support. The catalyst further includes a promoter selected from among boron, manganese, vanandium, phosphorous, and the alkali metals. The promoter preferably improves the activity for the production of hydrocarbons by at least about 5%. The improved activity may be an increased productivity, increased CO conversion, and the like. The hydrocarbons may have a weight range useful for making diesel fuel, (e.g. C11+ hydrocarbons). Alternately, the hydrocarbons may have a weight range useful for making gasoline (e.g. C5+ hydrocarbons). The catalyst may be made by co-dispersing the promoter with the cobalt or by layering the promoter over the cobalt.Type: ApplicationFiled: March 12, 2001Publication date: January 24, 2002Inventors: Olga Ionkina, Munirpallam A. Subramanian, Wenchun Chao, Kamel M. Makar, Leo E. Manzer
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Patent number: 6333294Abstract: A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In accordance with this invention, the catalyst used in the process includes at least cobalt, rhenium, and a promoter selected from the group including boron, phosphorus, potassium, manganese, and vanadium. The catalyst may also comprise a support material selected from the group including silica, titania, titania/alumina, zirconia, alumina, aluminum fluoride, and fluorided aluminas.Type: GrantFiled: May 19, 1999Date of Patent: December 25, 2001Assignee: Conoco Inc.Inventors: Wenchun Chao, Kamel M. Makar, Leo E. Manzer, Munirpallam A. Subramanian