Patents by Inventor Leroy J. Pinto

Leroy J. Pinto 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 to manufacture gas monitoring test strips
    Patent number: 5106647
    Abstract: A simple, inexpensive, and versatile device for measuring gaseous substances and a method for manufacture of such devices are described. The device comprises a reflectant backing upon which is disposed a layer which is composed of microparticles coated with a reagent and then with a diffusion layer which contains a diffusion moderator and binder, and optionally a plasticizer. A variety of useful configurations of this device are described.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: April 21, 1992
    Assignee: Assay Tec Associates, Inc.
    Inventors: Charles R. Manning, Leroy J. Pinto
  • Segmented electrophoretic separation system useful for lipid profiling
    Patent number: 5078853
    Abstract: A diagnostic device is provided where the preferred embodiment is useful for sorting seric or plasmatic lipoproteins into four cholesterol fractions. The device comprises a plurality of gel matrixes, preferably agarose-based, defining a liquid pathway upon which a directioinal electrophoretic gradient can be imposed. The gel matrixes are in a serial relationship and preferably are of a successively decreasing pore size from a most upstream matrix to a most downstream matrix. In a preferred embodiment the three more downstream gel matrixes are in a noncontiguous relationship and are separated by interfaces containing buffer. These interfaces are adapted to receive a separate lipoprotein fraction upon reversal of the electrophoretic gradient direction.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: January 7, 1992
    Assignee: Assay Technology, Inc.
    Inventors: Charles R. Manning, LeRoy J. Pinto, Joyce Chang
  • Integrated exposure monitoring device
    Patent number: 4946705
    Abstract: A simple, inexpensive, and versatile device for measuring gaseous substances and a method for manufacture of such devices are described. The device comprises a reflectant backing which is disposed a layer which is composed of microparticles coated with a reagent and then with a diffusion layer which contains a diffusion moderator and binder, and optionally a plasticizer. A variety of useful configurations of this device are described.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: August 7, 1990
    Assignee: Assay Technologies, Inc.
    Inventors: Charles R. Manning, Leroy J. Pinto