Patents by Inventor William Arthur Green

William Arthur Green 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).

  • Process for the production of substituted thioxanthones
    Patent number: 6960668
    Abstract: A one-step process for the preparation of a substituted thioxanthone, such as carboxymethoxythioxanthone, in high yields and as a single isomer. The substituted aryl compound is reacted with mercaptobenzoic acid or dithiobisbenzoic acid in the presence of sulphuric acid.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: November 1, 2005
    Assignee: Great Lakes (UK) Limited
    Inventors: Allan William Timms, William Arthur Green
  • Process for the production of substituted thioxanthones
    Publication number: 20040059133
    Abstract: A one-step process for the preparation of a substituted thioxanthone, such as carboxymethoxythioxanthone, in high yields and as a single isomer. The substituted aryl compound is reacted with mercaptobenzoic acid or dithiobisbenzoic acid in the presence of sulphuric acid.
    Type: Application
    Filed: July 3, 2003
    Publication date: March 25, 2004
    Applicant: Great Lakes (UK) Limited
    Inventors: Allan William Timms, William Arthur Green