Patents by Inventor Andrew C. GRUBBS

Andrew C. GRUBBS 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).

  • Motor control device
    Patent number: 10637387
    Abstract: A method and system to convert a constant speed motor drive (40) into a variable speed motor drive (80) are disclosed.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: April 28, 2020
    Assignee: Franklin Electric Co., Inc.
    Inventors: Terry A. Smith, Andrew C. Grubbs, Robert L. Wetekamp
  • MOTOR CONTROL DEVICE
    Publication number: 20180367079
    Abstract: A method and system to convert a constant speed motor drive (40) into a variable speed motor drive (80) are disclosed.
    Type: Application
    Filed: December 15, 2016
    Publication date: December 20, 2018
    Applicant: Franklin Electric Co., Inc.
    Inventors: Terry A. SMITH, Andrew C. GRUBBS, Robert L. WETEKAMP