Patents by Inventor David L. Wolfe

David L. Wolfe 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: 11950848
    Abstract: An example system for microvascular assessment of a patient can include: a fundus imaging device including: a camera configured to capture one or more images of an eye of the patient; and at least one light source; and a microvascular assessment computing device including: a processor; and memory encoding instructions which, when executed by the processor, cause the system to: activate the light source to direct light at a fundus of the eye of the patient; capture, with the camera, one or more images of the fundus of the patient, the fundus comprising a plurality of blood vessels; and analyze with the microvascular assessment computing device, the one or more images to determine a microvasculature health index for the patient.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: April 9, 2024
    Assignee: Welch Allyn, Inc.
    Inventors: Stacey A. Fitzgibbons, Allen R. Hart, David L. Ribble, Craig M. Meyerson, Heather Whitt, Gene J. Wolfe
  • Patent number: 5449483
    Abstract: Making a tire mold by spraying molten atomized metal on a model to form a metal shell and then reinforcing the shell with a resin backing to form a mold segment for the tire mold. Modular shoe container assemblies have replaceable backing members for making different size molds and flat plate spacers for providing different thicknesses of the mold segment. In one embodiment a slide block is used for one side of the cavity whereby a sole plate is eliminated.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: September 12, 1995
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Alan Greenwood, Paul T. Hardy, Veronique Moris-Herbeuval, Werner Hillman, Norbert Majerus, Douglas E. Pryor, Timothy M. Rooney, Ronda R. Bayer-Thayer, David L. Wolfe
  • Patent number: 4975476
    Abstract: A composition useful as a pavement material comprising a mixture of asphalt and a polymer of an .alpha.-olefin, or an interpolymer of an .alpha.-olefin, and at least one copolymer selected from the group consisting of an .alpha., .beta.-unsaturated carboxylic acid, a monomer of an .alpha.,.beta.-unsaturated carboxylic acid, a vinyl ester of alkanoic acid, and carbon monoxide.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: December 4, 1990
    Assignee: The Dow Chemical Company
    Inventor: David L. Wolfe
  • Patent number: 4933384
    Abstract: A composition useful as a pavement material comprising a mixture of asphalt and a polymer of an .alpha.-olefin, or an interpolymer of an .alpha.-olefin, and at least one copolymer selected from the group consisting of an .alpha.,.beta.-unsaturated carboxylic acid, a monomer of an .alpha.,.beta.-unsaturated carboxylic acid, a vinyl ester of alkanoic acid, and carbon monoxide.
    Type: Grant
    Filed: January 10, 1986
    Date of Patent: June 12, 1990
    Assignee: The Dow Chemical Company
    Inventor: David L. Wolfe
  • Patent number: 4839404
    Abstract: A composition useful as a pavement material comprising a mixture of asphalt, aggregate and an interpolymer of an .alpha.-olefin monomer selected from the group consisting of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid or an ionomer of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid.
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: June 13, 1989
    Assignee: The Dow Chemical Company
    Inventors: Dane Chang, David L. Wolfe
  • Patent number: 4500687
    Abstract: Excellent and very high quality impact-resistant polymer products products are comprised of particular polyether elastomer constituents which modify and attribute many desirable properties and characteristics to the interpolymerized end product; impact styrene polymers being especially advantageous varieties thereof. In-situ polymerization, with specific coordination catalyst systems, is followed to form polyether polymers of epoxidized monomer constituents provided directly dissolved (or dispersed) in the major addition-polymerizable monomer utilized. The rubbery polyether elastomer so made is then interpolymerized with the major monomer to provide the advantageous high impact end product.
    Type: Grant
    Filed: June 18, 1981
    Date of Patent: February 19, 1985
    Assignee: The Dow Chemical Company
    Inventor: David L. Wolfe
  • Patent number: 4423206
    Abstract: A polymerization process for vicinal alkylene oxides and a catalyst for said polymerization process where the catalyst comprises a composition prepared by contacting an alkyl aluminum compound with an organic nitrogen base compound selected from secondary nitrogen-containing compounds having basicity less than or about equal to the basicity of dimethylamine, with a .beta.-diketone and with water where the components are combined in prescribed molar ratios. The molecular weight of the resultant polymers produced in a process utilizing such a catalyst may be controlled by adjusting the ratio of the secondary amine component and very high molecular weight polymers may be obtained, as determined by their intrinsic viscosities. The very high molecular weight polymeric products are useful as elastomers and as thickeners for various aqueous or organic solutions.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: December 27, 1983
    Assignee: The Dow Chemical Co.
    Inventors: David L. Wolfe, Frederick P. Corson
  • Patent number: 4376723
    Abstract: A polymerization process for vicinal alkylene oxides and a catalyst for said polymerization process where the catalyst comprises a composition prepared by contacting an alkyl aluminum compound with an organic nitrogen base compound selected from secondary nitrogen-containing compounds having basicity less than or about equal to the basicity of dimethylamine, with a .beta.-diketone and with water where the components are combined in prescribed molar ratios. The molecular weight of the resultant polymers produced in a process utilizing such a catalyst may be controlled by adjusting the ratio of the secondary amine component and very high molecular weight polymers may be obtained, as determined by their intrinsic viscosities. The very high molecular weight polymeric products are useful as elastomers and as thickeners for various aqueous or organic solutions.
    Type: Grant
    Filed: June 16, 1981
    Date of Patent: March 15, 1983
    Assignee: The Dow Chemical Company
    Inventors: David L. Wolfe, Frederick P. Corson
  • Patent number: 4048237
    Abstract: In a process for removing --R groups, where --R is tertiary butyl or tertiary amyl, from a polymer containing the monomeric unit represented by the formula ##STR1## by contacting the polymer with a sulfonic acid, the improvement of contacting under essentially anhydrous conditions.
    Type: Grant
    Filed: June 23, 1975
    Date of Patent: September 13, 1977
    Assignee: The Dow Chemical Company
    Inventors: David L. Wolfe, Arthur R. Sexton