Patents by Inventor Robert K. Campbell

Robert K. Campbell 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: 5508261
    Abstract: The present invention pertains to an alpha, beta-heterodimeric polypeptide having binding affinity to vertebrate luteinizing hormone (LH) receptors and vertebrate follicle stimulating hormone (FSH) receptors comprising a glycoprotein hormone alpha-subunit polypeptide and a non-naturally occurring beta-subunit polypeptide, wherein the beta-subunit polypeptide is a chain of amino acids comprising the following four joined subsequences:(a) a first subsequence homologous to the amino acid sequence of residues 1-93 of the beta-subunit selected from the group consisting of human chorionic gonadotrophin (hCG), vertebrate luteinizing hormone (LH), vertebrate follicle stimulating hormone (FSH), and vertebrate thyroid stimulating hormone (TSH);(b) a second subsequence homo logous to the amino acid sequence of residues 94-97 of the beta-subunit selected from the group consisting of human chorionic gonadotrophin (hCG) and vertebrate luteinizing hormone (LH);(c) a third subsequence homologous to the amino acid sequence of
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: April 16, 1996
    Assignee: University of Medicine & Dentistry of New Jersey
    Inventors: William R. Moyle, Robert K. Campbell, Gordon J. Macdonald, Yi Han, Yanhong Wang
  • Patent number: 4985928
    Abstract: A method and apparatus for handwriting analysis wherein a signature or other writing can be subjected to comparison with a reference signature. The apparatus and method rely on the collection of measurements of the optical density of a plurality of elements in the specimen and selectively retaining said measurements and then comparing each density measurement to a threshold value. Ultimately, only those density measurements are retained which are located within a bounded locus. After the retained density measurements have been established, they are automatically compared to the measurements of the specimen signature to permit the apparatus to accept or reject the signature on the presented document.
    Type: Grant
    Filed: May 10, 1989
    Date of Patent: January 15, 1991
    Inventors: Robert K. Campbell, John F. Cerlanek, Jr., Kurt E. Schwalbe
  • Patent number: 4907080
    Abstract: A relatively low cost, easy to operate video signature comparator and a corresponding method by which a known signature is visually compared to a sample signature to determine whether both signatures were made by the same individual. The signator comparator has particular application to forgery detection or to applications for verifying the authenticity of a signature. An electronic circuit is disclosed which displays video signals that are representative of the known and sample signatures. The circuit enhances video image density variations through extreme contrast and brightness adjustment and forces the lighter regions of each signature to white, such that only the dark stroke lines (indicative of those regions having the greatest density where the maker applied the most pressure) are displayed on video monitor.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: March 6, 1990
    Inventors: Robert K. Campbell, John F. Cerlanek, Jr.
  • Patent number: 4555058
    Abstract: A coating applicator is disclosed which includes a rotary atomizer on a driven shaft. The shaft operates at high speeds. Coating material is supplied to the rotary atomizer. A pair of spaced bearings rotatably mount the shaft and a seal assembly is positioned between the rotary atomizer and the front bearing. The seal assembly includes a bearing cover having a cutting edge. A mating cap member surrounds the shaft and has a sealing shoulder which is engaged by the cutting edge. Exhaust air is used to cool the bearings, pressure the interior of the applicator and enhance the seal assembly.
    Type: Grant
    Filed: October 5, 1983
    Date of Patent: November 26, 1985
    Assignee: Champion Spark Plug Company
    Inventors: Richard Weinstein, James W. Davis, Robert K. Campbell