Patents by Inventor Sigmund M. Csicsery

Sigmund M. Csicsery 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).

  • Manufacturing of 2,6-dimethylnaphthalene
    Patent number: 5952534
    Abstract: The invention is related to a process for making 2,6-dimethylnaphthalene from p-xylene and 1- or 2-butene or butadiene via 1-(p-tolyl)-2-methylbutane or 1-(p-tolyl)-2-methylbutane. 2,6-dimethylnaphthalene can be used for making polyethylenenaphthalate.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: September 14, 1999
    Assignee: Optatech Oy
    Inventors: Kari Vahteristo, Erkki Halme, Salme Koskimies, Sigmund M. Csicsery, Markku Laatikainen, Vesa Niemi
  • Hydrocarbon conversion catalyst
    Patent number: 4187199
    Abstract: A composition useful in hydrocarbon conversion processes such as catalytic cracking is disclosed, comprising 0.05 to 10 weight percent lanthanum associated with a refractory support. The composition may also include 0.02 to 10 weight percent iron.
    Type: Grant
    Filed: September 5, 1978
    Date of Patent: February 5, 1980
    Assignee: Chevron Research Company
    Inventor: Sigmund M. Csicsery
  • Hydrocarbon conversion with cracking catalyst having co-combustion promoters lanthanum and iron
    Patent number: 4137151
    Abstract: A composition useful in hydrocarbon conversion processes such as catalytic cracking is disclosed, comprising 0.05 to 10 weight percent lanthanum associated with a refractory support. The composition may also include 0.02 to 10 weight percent iron.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: January 30, 1979
    Assignee: Chevron Research Company
    Inventor: Sigmund M. Csicsery
  • Catalyst activation process
    Patent number: 4002578
    Abstract: A method is disclosed for increasing the acid catalytic activity of a crystalline zeolitic aluminosilicate having a Group IIA cation as a substantial portion of its cations, having at least 6-Angstrom-sized pores and being substantially free of hydrogen cations. The activating procedure comprises in sequence a treatment with a reducing atmosphere followed by a treatment with an oxygen-containing gas, the former treatment being at a temperature above 700.degree. C.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: January 11, 1977
    Assignee: Chevron Research Company
    Inventor: Sigmund M. Csicsery
  • Fuel injection cold start and evaporative control system using a bimodal adsorbent bed
    Patent number: 3933130
    Abstract: As cold start is initiated in a spark-ignition internal, fuel injection combustion engine, lower molecular weight constituents fo a full-range gasoline are selectively eluted by an elution system including an adsorbent bed of adsorbent material (cold start cycle). Under such circumstances, the adsorbent bed forms an elution zone within a cannister assembly. Entry of the full-range gasoline is initiated by a valve and conduit network under control of a fuel injection control circuit. Furthermore, when the engine is in an inoperative state (vapor capture cycle) the same adsorbent bed is also capable of performing a second function: it adsorbes evaparative emissions originating from within the gasoline tank.
    Type: Grant
    Filed: March 6, 1974
    Date of Patent: January 20, 1976
    Assignee: Chevron Research Company
    Inventor: Sigmund M. Csicsery