Patents by Inventor Christa G. Kuehn

Christa G. Kuehn 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).

  • Immunoassay method and kit
    Patent number: 5063151
    Abstract: A method of binding an antibody with protein A cells is provided which includes a sequence of incubation and dilution steps to produce a preselected amount and concentration of antibody with a preselected distribution of antibody among the protein A cells. In addition, a method is provided for preparing an antibody entrapped porous matrix and apparatus which includes a specific porous matrix with a preselected position of antibody bound bacterium cells therein along with means for drawing fluids through the porous medium and means for facilitating the deposition of fluids onto the surface of the porous matrix. The apparatus and method is useful for testing for the level of progesterone in animal body fluids, such as milk, plasma, serum, whole blood and saliva.
    Type: Grant
    Filed: September 20, 1985
    Date of Patent: November 5, 1991
    Assignee: Biometallics, Inc.
    Inventors: Christa G. Kuehn, Debra J. Rossi, Stephan S. Isied
  • Method for the electrolytic production of hydrogen peroxide
    Patent number: 4384931
    Abstract: A method and apparatus for producing hydrogen peroxide in caustic solution utilizing an electrolytic cell having two electrolytes, one acidic, one basic, separated by a membrane permeable to positive ions. Electrolysis of oxygen which diffuses through a gas-diffusion cathode forms peroxide in caustic catholyte while hydrogen ions generated at an anode are allowed to migrate into the catholyte by the membrane. Peroxide produced in the catholyte upon circulation of catholyte in the cell a product can be produced having a caustic to peroxide ratio of less than 1.0 at five percent peroxide, by weight.
    Type: Grant
    Filed: September 4, 1981
    Date of Patent: May 24, 1983
    Assignee: Occidental Research Corporation
    Inventors: Raymond J. Jasinski, Christa G. Kuehn
  • Three compartment electrolytic cell method for producing hydrogen peroxide
    Patent number: 4357217
    Abstract: Apparatus and method for the production of hydrogen peroxide in either a neutral, acidic or an alkaline solution utilizes a three compartment cell having an acid resistant anode, a gas-diffusion cathode, and both an anion and a cation membrane. Acid electrolyte is introduced between the anode and the cation membrane while a basic electrolyte is introduced between the cathode and the anion membrane. A neutral, acidic, or basic solution is introduced between the anion and cation membrane wherein hydrogen ions generated passing through the cation membrane and O.sub.2 H.sup.- ions passing through the anion membrane react to form hydrogen peroxide.
    Type: Grant
    Filed: October 2, 1981
    Date of Patent: November 2, 1982
    Assignee: Occidental Research Corporation
    Inventors: Christa G. Kuehn, Frederic Leder