Patents by Inventor John Joseph Howarth

John Joseph Howarth 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).

  • Patent number: 4104028
    Abstract: A method of titrating liquor from a digester comprises removing a portion of the liquor into a sample vessel and using carbon dioxide as a titrant to determine the alkalinity of the liquor.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: August 1, 1978
    Assignee: Measurex Corporation
    Inventor: John Joseph Howarth