Patents by Inventor Diane L. Dick

Diane L. Dick 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).

  • Heat transfer fluid for secondary refrigeration systems comprising a formate salt and sulfamic acid
    Patent number: 6983614
    Abstract: A formate salt based heat transfer fluid containing sulfamic acid for a secondary refrigeration loop is disclosed. The formate based heat transfer fluid generally is a more effective heat transfer medium than a glycol based fluid designed to operate in the same temperature range. The formate based fluid also has lower toxicity and environmental risks than the glycol fluid.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: January 10, 2006
    Assignee: The Lubrizol Corporation
    Inventors: Diane L. Dick, Thomas E. Rajewski, Gilbert R. Malone
  • Heat transfer fluid for secondary refrigeration systems comprising a formate salt
    Publication number: 20040040336
    Abstract: A formate salt based heat transfer fluid containing sulfamic acid and/or biocides for a secondary refrigeration loop is disclosed. The formate based heat transfer fluid generally is a more effective heat transfer medium than a glycol based fluid designed to operate in the same temperature range. The formate based fluid also has lower toxicity and environmental risks than the glycol fluid.
    Type: Application
    Filed: January 21, 2003
    Publication date: March 4, 2004
    Inventors: Diane L Dick, Thomas E Rajewski, Gilbert R Malone