Patents by Inventor Richard R. Parker

Richard R. Parker 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
  • Optical connector coupling for reducing unwanted effects associated with high power density
    Patent number: 5594825
    Abstract: An optical connector ferrule is provided having an standard single mode optical fiber therein whose mode field diameter is approximately 10 .mu.m along its length. An end portion and the end face of the optical fiber are heated to thermally expanded the mode field diameter to approximately 20 .mu.m or greater for reducing power density at the end face. By providing an expanded mode field diameter at the end face of the fiber, the power density is lessened, thereby lessening the probability that any dirt or debris at the end face will become heated sufficiently to damage the optical fiber.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: January 14, 1997
    Assignee: JDS Fitel Inc.
    Inventors: Brian S. Kawasaki, Richard R. Parker