Patents by Inventor Richard C. Sullivan

Richard C. Sullivan 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).

  • Electrical coupling of pulse transit time (PTT) measurement system to heart for blood pressure measurement
    Patent number: 11918324
    Abstract: A pulse transit time is measured non-invasively and used to calculate a blood pressure value. A method of determining one or more blood pressure values includes propagating an alternating drive current through a thorax of a subject via electrodes located on a wrist-worn device. Resulting voltage levels of the subject are sensed by the wrist-worn device. The voltage levels are processed to detect when a volume of blood is ejected from the left ventricle. Output from a pulse arrival sensor coupled to the wrist-worn device is processed to detect when a blood pressure pulse generated by ejection of the volume of blood from the left ventricle arrives at the wrist. A pulse transit time (PTT) for transit of the blood pressure pulse from the left ventricle to the wrist is calculated. One or more blood pressure values for the subject are determined based on the PTT.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: March 5, 2024
    Assignee: Apple Inc.
    Inventors: Thomas J. Sullivan, Wren Nancy Dougherty, Richard C. Kimoto, Erno Klaassen, Ravi K. Narasimhan, Stephen J. Waydo, Todd K. Whitehurst, Derek Park-Shing Young, Santiago Quijano, Zijing Zeng
  • Spray dried myrosinase and use to produce isothiocynates
    Patent number: 10925934
    Abstract: A spray dried myrosinase/ascorbate mixture is formed from the steps comprising: providing a source of myrosinase, adding ascorbate to the source of myrosinase, heating the source of myrosinase to a temperature of about 104° F. (about 40° C.) or higher, and spray drying the myrosinase/ascorbate mixture. The spray dried myrosinase/ascorbate mixture may be used to prepare isothiocyanates. The spray dried myrosinase/ascorbate mixture may also be mixed with glucoraphanin and used in an activated tablet or capsule.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: February 23, 2021
    Assignee: Caudill Seed and Warehouse Co., Inc.
    Inventors: Richard C. Sullivan, Joseph A. Lyons, Sanford D. Caudill
  • SPRAY DRIED MYROSINASE AND USE TO PRODUCE ISOTHIOCYNATES
    Publication number: 20120213890
    Abstract: A spray dried myrosinase/ascorbate mixture is formed from the steps comprising: providing a source of myrosinase, adding ascorbate to the source of myrosinase, heating the source of myrosinase to a temperature of about 104° F. (about 40° C.) or higher, and spray drying the myrosinase/ascorbate mixture. The spray dried myrosinase/ascorbate mixture may be used to prepare isothiocyanates. The spray dried myrosinase/ascorbate mixture may also be mixed with glucoraphanin and used in an activated tablet or capsule.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 23, 2012
    Applicant: CAUDILL SEED COMPANY, INC.
    Inventors: Richard C. Sullivan, Joseph A. Lyons, Sanford D. Caudill, Kean Ashurst