Patents by Inventor Jorgen G. Larsen

Jorgen G. Larsen 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: 5759936
    Abstract: A lanthanide oxide ceramic material having the general formula:La.sub.a Ln.sub.b M'.sub.c M".sub.d O.sub.3-.delta.,whereinLn is a combination of Ce, Pr and Nd;M' is at least one alkaline earth metal;M" is at least one metal selected from the group consisting of Co, Fe, Ni, Zn, Cu, Mn, Al, V, Ir, Mo, W, Pd, Pt, Mg, Ru, Rh, Cr and Zr; and0.ltoreq.a.ltoreq.1; 0.01<b.ltoreq.1;0.ltoreq.c.ltoreq.0.6; 0.ltoreq.d.ltoreq.1; and-1<.delta.
    Type: Grant
    Filed: February 3, 1997
    Date of Patent: June 2, 1998
    Assignee: Haldor Topsoe AS
    Inventors: Niels Christiansen, Jorgen G. Larsen
  • Patent number: 4985230
    Abstract: A catalytic chemical process is carried out non-adiabatically using as a catalyst a body with two sets of channels throughout the body. One set of channels leads the process fluid towards one of two parallel walls of the catalyst chamber, the other set towards the outer wall, In slits between walls and catalyst heat is exchanged between process fluid and at least one of these walls upon reflecting the process fluid leaving channels of one set and entering channels of the other. The body may be made of alternatingly corrugated and plane sheets using in turn two different orientations for the corrugated sheets. It is preferred that the sheets are arranged orthogonal to the heat transmitting wall(s) and parallel to the overall direction of flow. The method is preferred for endothermic processes, especially steam reforming of hydrocarbon(s).
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: January 15, 1991
    Assignee: Haldor Topsoe A/S
    Inventors: Niels T. Baden, Ernst J. Jensen, Jorgen G. Larsen