Patents by Inventor Kenneth A. Fowler

Kenneth A. Fowler 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: 12208105
    Abstract: The present invention relates to methods for attenuating graft-versus-host disease after transplantation of a graft comprising hematopoietic stem cells in a subject. The invention further relates to methods of limiting opportunistic microbial infections in a subject after transplantation of a graft comprising hematopoietic stem cells.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: January 28, 2025
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: James M. Coghill, Kenneth A. Fowler
  • Publication number: 20220031711
    Abstract: The present invention relates to methods for attenuating graft-versus-host disease after transplantation of a graft comprising hematopoietic stem cells in a subject. The invention further relates to methods of limiting opportunistic microbial infections in a subject after transplantation of a graft comprising hematopoietic stem cells.
    Type: Application
    Filed: December 3, 2019
    Publication date: February 3, 2022
    Inventors: James M. Coghill, Kenneth A. Fowler
  • Patent number: 4918990
    Abstract: An ultrasonic transducer assembly for monitoring the quality of spot welds employs a transducer element joined to a support element and fitted within a conventional welding electrode assembly. The transducer assembly is biased against the interior surface of the welding electrode tip by a biasing element, preferably a compression spring. A sleeve, preferably composed of brass, surrounds the transducer element and is joined to the support element. A coaxial cable in communication with external instrumentation has a ground lead attached to the sleeve, and a signal lead attached to the transducer element.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: April 24, 1990
    Assignee: Panametrics, Inc.
    Inventors: Kenneth A. Fowler, Dana R. Patch, Frederick H. Hotchkiss
  • Patent number: 4297607
    Abstract: An ultrasonic transducer assembly for making measurements within a fluid, the assembly including a transducer, a backing member and a matching member all supported within a cylindrical metal housing with the transmitting face of the housing being sealed with a thin sealing element formed of a non-resilient relatively high impedance material encasing a matching layer having an acoustic impedance intermediate between that of the transducer element and the fluid. The thickness of the sealing element is between 1/10 and 1/1000th of a wavelength at the center frequency of the wave emitted by the transducer.
    Type: Grant
    Filed: April 25, 1980
    Date of Patent: October 27, 1981
    Assignee: Panametrics, Inc.
    Inventors: Lawrence C. Lynnworth, Kenneth A. Fowler, Dana R. Patch
  • Patent number: 4182155
    Abstract: A transducer for an ultrasonic thickness gauge of the pitch and catch type has transmitting and receiving transducer elements on adjoining blocks of delay material separated by an acoustic barrier is calibrated by operating the receiving transducer element in pulse-echo mode. The lengths of the two delay blocks differ by an amount calculated to make the pulse-echo travel time in the longer delay block greater than pitch and catch travel time by an amount at least equal to the geometric delay of the transducer to provide an unambiguous readout during pulse-echo operation when the gauge is adjusted to the proper zero point calibration for the transducer.
    Type: Grant
    Filed: September 22, 1978
    Date of Patent: January 8, 1980
    Assignee: Panametrics, Inc.
    Inventor: Kenneth A. Fowler