Patents by Inventor Gerrit D. Keizer

Gerrit D. Keizer 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).

  • Method for an increased visualization of the reaction product of a specifically binding substance and a corresponding bindable substance and test kit therefor
    Patent number: 5348891
    Abstract: The invention herein is directed to a method for the visualization of the product of the reaction of a specifically binding substance and a corresponding bindable substance. The reaction product is formed during an assay procedure for the detection and/or determination of one of the components of the reaction. The assay involves the use of a component labeled by a sol of a non-metallic element, such as selenium and tellurium, and the use of a physical developer comprising a metal compound, such as silver lactate and silver nitrate, mercuric chloride and a copper sulfate, to strengthen or reinforce a specific signal, thereby improving detectability.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: September 20, 1994
    Assignee: H.B.T. Holland Biotechnology
    Inventors: Remco M. van Es, Gerrit D. Keizer, Albert W. J. van Doorn