Patents by Inventor Robert L. Griffith

Robert L. Griffith 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: 5567809
    Abstract: Primers for amplification of specific nucleic acid sequences of the second exon of HLA DRbeta genes and probes for identifying polymorphic sequences contained in the amplified DNA can be used in processes for typing homozygous or heterozygous samples from a variety of sources and for detecting allelic variants not distinguishable by serological methods. This HLA DRbeta DNA typing system can be used in a dot-blot format that is simple and rapid to perform, produces detectable signals in minutes, and can be used for tissue typing, determining individual identity, and identifying disease susceptible individuals.
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: October 22, 1996
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Raymond J. Apple, Henry A. Erlich, Robert L. Griffith, Stephen J. Scharf
  • Patent number: 4895102
    Abstract: A spin coater suitable for spin coating spectacle lens molds with polymerizable coating composition. The spin coater includes a drawer which rotatably mounts at least one chuck thereon, which drawer is slidable between a front and rear position within a housing to sequentially allow application of a coating by the spinning chucks in the front chamber of the housing, followed by polymerization thereof in the rear chamber. Each chuck of the spin coater is provided with a mold seat defined by a ledge and adjacent lip, the lip automatically centering the mold in the seat axis by virtue of its dimensions in relation to the mold. The chuck also has a lengthwise resilient vacuum conduit, preferably in the form of a bellows, which has an open end which can sealingly engage against a seated mold, such that when a vacuum is applied through the vacuum conduit the mold is urged firmly against the ledge of the mold seat.
    Type: Grant
    Filed: October 29, 1987
    Date of Patent: January 23, 1990
    Assignee: Techna Vision Incorporated
    Inventors: Theodore V. Kachel, Clarence F. Rydeen, Robert W. Millar, Ralph C. Dawson, Robert L. Griffith, William H. Weitzel
  • Patent number: 4587612
    Abstract: If a predetermined field (FIG. 3/27) within a source instruction indexes and accesses a body of control information from memory (FIG. 2/5), and if control information (FIG. 4) designates the field-to-field (register-to-register) mapping (FIG. 6), then a skeleton target instruction (FIG. 3/29; FIG. 4) can be filled in by either selectively copying the fields of the source instruction or otherwise computing same. If the mapping is executed by an interposed independent processor then overlapping of such conversion enhances throughput, the independent processor converting multifield instructions for a CPU of a first kind to multifield instructions for a CPU of a second kind without disrupting the logical flow or execution of either source or target instruction streams.
    Type: Grant
    Filed: December 22, 1982
    Date of Patent: May 6, 1986
    Assignee: International Business Machines Corporation
    Inventors: Dale E. Fisk, Robert L. Griffith, Merle E. Homan, George Radin, Waldo J. Richards
  • Patent number: 4386490
    Abstract: This invention relates to improvements in apparatus for collating, cutting and packing containers with stick-like food products such as cooked sausages of the type commonly known as vienna sausages, hot dogs and the like.
    Type: Grant
    Filed: April 13, 1981
    Date of Patent: June 7, 1983
    Assignee: Armour-Dial, Inc.
    Inventors: Robert L. Griffith, John G. Carlson, Daniel E. Gritzner, William H. Mullan