Patents by Inventor Richard D. Payne

Richard D. Payne 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).

  • Engineered glucosyltransferases
    Patent number: 11952598
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes exhibit improved alpha-glucan product yields and/or lower leucrose yields, for example. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: April 9, 2024
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Yougen Li, Mark S. Payne, Jared B. Parker, Slavko Kralj, Veli Alkan, Richard R. Bott, Robert Dicosimo, Qiong Cheng, Ellen D. Semke, Susan Marie Hennessey
  • Electrical control systems
    Patent number: 4791309
    Abstract: A hydroelectric power system has a reservoir (prime mover) (17) driving an electrical generator (10) which supplies a consumer load (B) and an auxiliary load (14). A control system (11) operates control (15) for the prime mover, control (13) for the auxiliary load and/or control (12) for the consumer load in response to a signal from the generator (10) or some other source, so that the supply is stabilized so far as possible to a minimum. Normally no energy is dissipated in the auxiliary load, except during a control sequence.
    Type: Grant
    Filed: December 28, 1987
    Date of Patent: December 13, 1988
    Assignee: Thamesmead Engineering Limited
    Inventors: Richard D. Payne, Eric E. Simpson