Patents by Inventor George A. Olah

George A. Olah 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).

  • Publication number: 20060235088
    Abstract: The present invention relates to a method of producing methanol from a methane source by oxidizing methane under conditions sufficient to a mixture of methanol and formaldehyde while minimizing the formation of formic acid and carbon dioxide. The oxidation step is followed by treatment step in which formaldehyde is converted into methanol and formic acid which itself can further be converted into methanol via catalytic hydrogenation of intermediately formed methyl formate.
    Type: Application
    Filed: April 12, 2006
    Publication date: October 19, 2006
    Inventors: George Olah, G.K. Prakash
  • Patent number: 7119232
    Abstract: (Benzenesulfonyl)difluoromethyl anion, in situ generated from difluoromethyl phenyl sulfone and a base, was found to easily undergo nucleophilic substitution reactions (SN2) with primary alkyl halides, elemental halogens, and perfluoroalkyl halides with good selectivity. The formed (benzenesufonyl)difluoromethylalkanes are useful intermediates for the facile preparation of 1,1-difluoro-1-alkenes and difluoromethylalkanes.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: October 10, 2006
    Assignee: University of Southern California
    Inventors: G. K. Surya Prakash, Jinbo Hu, George A. Olah, Ying Wang
  • Publication number: 20060204810
    Abstract: A liquid organic, fuel cell is provided which employs a solid electrolyte membrane. An organic fuel, such as a methanol/water mixture, is circulated past an anode of a cell while oxygen or air is circulated past a cathode of the cell. The cell solid electrolyte membrane is preferably fabricated from Nafion™. Additionally, a method for improving the performance of carbon electrode structures for use in organic fuel cells is provided wherein a high surface-area carbon particle/Teflon™-binder structure is immersed within a Nafion™/methanol bath to impregnate the electrode with Nafion™. A method for fabricating an anode for use in a organic fuel cell is described wherein metal alloys are deposited onto the electrode in an electro-deposition solution containing perfluorooctanesulfonic acid. A fuel additive containing perfluorooctanesulfonic acid for use with fuel cells employing a sulfuric acid electrolyte is also disclosed.
    Type: Application
    Filed: May 5, 2006
    Publication date: September 14, 2006
    Inventors: Subbarao Surampudi, Sekharipuram Narayanan, Eugene Vamos, Harvey Frank, Gerald Halpert, George Olah, G. K. Prakash
  • Patent number: 7087789
    Abstract: A novel, convenient and efficient method for trifluoromethylation of substrate compounds is disclosed. Particularly, alkoxide and hydroxide induced nucleophilic trifluoromethylation of carbonyl compounds, disulfides and other electrophiles, using phenyl trifluoromethyl sulfone PhSO2CF3 (or sulfoxide PhSOCF3) is disclosed. A method of both symmetrical and unsymmetrical anti-2,2-difluoropropan-1,3-diols with high diastereoselectivity (up to 94% de) is disclosed using difluoromethyl phenyl sulfone. This unusual type of high diastereoselectivity was obtained via an intramolecular charge-charge repulsion effect rather than the traditional steric control (based on the Cram's rule). Thus, difluoromethyl phenyl sulfone can be used as a novel difluoromethylene dianion species (“?CF2?”), which can couple two electrophiles (such as diphenyl disulfide or non-enolizable aldehydes) to give new difluoromethylenated products.
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: August 8, 2006
    Assignee: University of Southern California
    Inventors: G. K. Surya Prakash, Jinbo Hu, George A. Olah
  • Patent number: 7038099
    Abstract: A method of alkylating aliphatic or aromatic hydrocarbons with olefins using solid hydrogen fluoride-equivalent catalysts is described. Preferred catalysts comprise solid polymeric onium polyhydrogen fluoride complexes.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: May 2, 2006
    Inventor: George A Olah
  • Publication number: 20060052643
    Abstract: (Benzenesulfonyl)difluoromethyl anion, in situ generated from difluoromethyl phenyl sulfone and a base, was found to easily undergo nucleophilic substitution reactions (SN2) with primary alkyl halides, elemental halogens, and perfluoroalkyl halides with good selectivity. The formed (benzenesufonyl)difluoromethylalkanes are useful intermediates for the facile preparation of 1,1-difluoro-1-alkenes and difluorometbylalkanes. Thus, difluoromethyl phenyl sulfone acts as both “CF2?” and “CF2H?” synthons.
    Type: Application
    Filed: March 22, 2005
    Publication date: March 9, 2006
    Inventors: G. K. Prakash, Jinbo Hu, George Olah, Ying Wang
  • Publication number: 20050214629
    Abstract: Coating materials for coating the electrodes of a fuel cell are disclosed. In one embodiment, the coating materials comprise perfluoroalkanesulfonic acids having the general formula F3C—(CF2)n—SO3H, wherein n ranges from 8 to 17. In another embodiment, the coating materials comprise perfluoroalkanesulfonimides having the general formula CnF2n+1SO2NHO2SF2m+1Cm, wherein the sum of m and n ranges from 8 to 17. These long chain sulfonic acids and imides impart improved electrode performance and decrease polarization.
    Type: Application
    Filed: October 1, 2004
    Publication date: September 29, 2005
    Inventors: Sekharipuram Narayanan, Marshall Smart, Subbarao Surampudi, G. K. Prakash, Qun-jie Wang, George Olah
  • Publication number: 20050074398
    Abstract: The present invention is directed to a convenient method of synthesizing radiolabeled ?-trifluoromethyl ketones by a fluorination reaction. The present invention also relates to imaging agents and markers for identifying cell proliferation, or viral infection. The markers and imaging agents including the radiolabeled ?-trifluoromethyl ketones that are prepared by the present method.
    Type: Application
    Filed: November 26, 2003
    Publication date: April 7, 2005
    Inventors: G.K. Prakash, Main Alauddin, Jinbo Hu, Peter Conti, George Olah
  • Patent number: 6872855
    Abstract: The present invention is directed to a convenient method of synthesizing radiolabeled ?-trifluoromethyl ketones by a fluorination reaction. The present invention also relates to imaging agents and markers for identifying cell proliferation, or viral infection. The markers and imaging agents including the radiolabeled ?-trifluoromethyl ketones that are prepared by the present method.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: March 29, 2005
    Assignee: University of Southern California
    Inventors: G. K. Surya Prakash, Mian M. Alauddin, Jinbo Hu, Peter S. Conti, George A. Olah
  • Patent number: 6821659
    Abstract: A liquid organic, fuel cell is provided which employs a solid electrolyte membrane. An organic fuel, such as a methanol/water mixture, is circulated past an anode of a cell while oxygen or air is circulated past a cathode of the cell. The cell solid electrolyte membrane is preferably fabricated from Nafion™. Additionally, a method for improving the performance of carbon electrode structures for use in organic fuel cells is provided wherein a high surface-area carbon particle/Teflon™ binder structure is immersed within a Nafion™/methanol bath to impregnate the electrode with Nafion™. A method for fabricating an anode for use in a organic fuel cell is described wherein metal alloys are deposited onto the electrode in an electro-deposition solution containing perfluorooctanesulfonic acid. A fuel additive containing perfluorooctanesulfonic acid for use with fuel cells employing a sulfuric acid electrolyte is also disclosed.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: November 23, 2004
    Assignees: California Institute of Technology, University of Southern California
    Inventors: Subbarao Surampudi, Sekharipuram R. Narayanan, Eugene Vamos, Harvey A. Frank, Gerald Halpert, George A. Olah, G. K. Surya Prakash
  • Publication number: 20040230079
    Abstract: A novel, convenient and efficient method for trifluoromethylation of substrate compounds is disclosed. Particularly, alkoxide and hydroxide induced nucleophilic trifluoromethylation of carbonyl compounds, disulfides and other electrophiles, using phenyl trifluoromethyl sulfone PhSO2CF3 (or sulfoxide PhSOCF3) is disclosed. A method of both symmetrical and unsymmetrical anti-2,2-difluoropropan-1,3-diols with high diastereoselectivity (up to 94% de) is disclosed using difluoromethyl phenyl sulfone. This unusual type of high diastereoselectivity was obtained via an intramolecular charge-charge repulsion effect rather than the traditional steric control (based on the Cram's rule). Thus, difluoromethyl phenyl sulfone can be used as a novel difluoromethylene dianion species (“−CF2−”), which can couple two electrophiles (such as diphenyl disulfide or non-enolizable aldehydes) to give new difluoromethylenated products.
    Type: Application
    Filed: January 12, 2004
    Publication date: November 18, 2004
    Inventors: G.K.Surya Prakash, Jinbo Hu, George A. Olah
  • Publication number: 20040224214
    Abstract: A liquid organic, fuel cell is provided which employs a solid electrolyte membrane. An organic fuel, such as a methanol/water mixture, is circulated past an anode of a cell while oxygen or air is circulated past a cathode of the cell. The cell solid electrolyte membrane is preferably fabricated from Nafion™. Additionally, a method for improving the performance of carbon electrode structures for use in organic fuel cells is provided wherein a high surface-area carbon particle/Teflon™-binder structure is immersed within a Nafion™/methanol bath to impregnate the electrode with Nafion™. A method for fabricating an anode for use in a organic fuel cell is described wherein metal alloys are deposited onto the electrode in an electro-deposition solution containing perfluorooctanesulfonic acid. A fuel additive containing perfluorooctanesulfonic acid for use with fuel cells employing a sulfuric acid electrolyte is also disclosed.
    Type: Application
    Filed: May 27, 2004
    Publication date: November 11, 2004
    Inventors: Eugene Vamos, Subbarao Surampudi, Sekharipuram R. Narayanan, Harvey A. Frank, Gerald Halpert, George A. Olah, G. K. Surya Prakash
  • Patent number: 6803477
    Abstract: An efficient method is disclosed for the preparation of trifluoromethyl- and difluoromethylsilanes using magnesium metal mediated reductive tri- and difluoromethylation of chlorosilanes with tri- and difluoromethyl sulfides, sulfoxides, and sulfones. One byproduct of the process is diphenyl disulfide. Since phenyl trifluoromethyl sulfone, sulfoxide and sulfide are readily prepared from readily available trifluoromethane and diphenyl disulfide, the method can be considered “pseudo-catalytic” for the preparation of (trifluoromethyl)trimethylsilane from environmentally benign trifluoromethane.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: October 12, 2004
    Assignee: University of Southern California
    Inventors: G. K. Surya Prakash, Jinbo Hu, George A. Olah
  • Publication number: 20040138513
    Abstract: A method of alkylating aliphatic or aromatic hydrocarbons with olefins using solid hydrogen fluoride-equivalent catalysts is described. Preferred catalysts comprise solid polymeric onium polyhydrogen fluoride complexes.
    Type: Application
    Filed: November 26, 2003
    Publication date: July 15, 2004
    Inventor: George A. Olah
  • Patent number: 6740434
    Abstract: A liquid organic, fuel cell is provided which employs a solid electrolyte membrane. An organic fuel, such as a methanol/water mixture, is circulated past an anode of a cell while oxygen or air is circulated past a cathode of the cell. The cell solid electrolyte membrane is preferably fabricated from Nafion™. Additionally, a method for improving the performance of carbon electrode structures for use in organic fuel cells is provided wherein a high surface-area carbon particle/Teflon™-binder structure is immersed within a Nafion™/methanol bath to impregnate the electrode with Nafion™. A method for fabricating an anode for use in a organic fuel cell is described wherein metal alloys are deposited onto the electrode in an electro-deposition solution containing perfluorooctanesulfonic acid. A fuel additive containing perfluorooctanesulfonic acid for use with fuel cells employing a sulfuric acid electrolyte is also disclosed.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: May 25, 2004
    Assignee: California Institute of Technology
    Inventors: Subbarao Surampudi, Sekharipuram R. Narayanan, Eugene Vamos, Harvey A. Frank, Gerald Halpert, George A. Olah, G. K. Surya Prakash
  • Patent number: 6677269
    Abstract: Solid polymeric onium poly(hydrogen fluoride) complexes disclosed herein can be used for alkylating aliphatic or aromatic hydrocarbons with olefins. These solid polymeric complexes can be formed by a process of contacting a source of hydrogen fluoride with a homopolymer or copolymer containing in at least one repeat unit, a nitrogen, phosphorus, or sulfur atom, capable of forming an onium fluoride moiety upon reaction or complexation with the hydrogen fluoride source.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: January 13, 2004
    Inventor: George A Olah
  • Publication number: 20030207167
    Abstract: A catalyst ink for a fuel cell including a catalytic material and poly(vinylidene fluoride). The ink may be applied to a substrate to form an electrode, or bonded with other electrode layers to form a membrane electrode assembly (MEA).
    Type: Application
    Filed: July 24, 2001
    Publication date: November 6, 2003
    Inventors: Surya Prakash, Sekharipuram R. Narayanan, Anthony Atti, George Olah, Marshall C. Smart
  • Publication number: 20030153778
    Abstract: An efficient method is disclosed for the preparation of trifluoromethyl- and difluoromethylsilanes using magnesium metal mediated reductive tri- and difluoromethylation of chlorosilanes with tri- and difluoromethyl sulfides, sulfoxides, and sulfones. One byproduct of the process is diphenyl disulfide. Since phenyl trifluoromethyl sulfone, sulfoxide and sulfide are readily prepared from readily available trifluoromethane and diphenyl disulfide, the method can be considered “pseudo-catalytic” for the preparation of (trifluoromethyl)trimethylsilane from environmentally benign trifluoromethane.
    Type: Application
    Filed: November 27, 2002
    Publication date: August 14, 2003
    Inventors: G.K. Surya Prakash, Jinbo Hu, George A. Olah
  • Publication number: 20020173684
    Abstract: A method of alkylating aliphatic or aromatic hydrocarbons with olefins using solid hydrogen fluoride-equivalent catalysts is described. Preferred catalysts comprise solid polymeric onium polyhydrogen fluoride complexes.
    Type: Application
    Filed: May 17, 2001
    Publication date: November 21, 2002
    Inventor: George A. Olah
  • Patent number: 6444343
    Abstract: A polymer electrolyte membrane composed of polystyrene sulfonic acid (PSSA) crosslinked within a poly(vinylidene fluoride) (PVDF) matrix is provided. This membrane exhibits low methanol crossover which translates to higher fuel and fuel cell efficiencies. A fuel cell comprising a PSSA-PVDF membrane is also provided. Further, methods of decreasing the fuel crossover rate, enhancing fuel cell efficiency, and enhancing electrical performance of a fuel cell are provided.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: September 3, 2002
    Assignee: University of Southern California
    Inventors: G. K. Surya Prakash, George A. Olah, Marshall C. Smart, Sekharipuram R. Narayanan, Qungie J. Wang, Subbarao Surumpudi, Gerald Halpert