Patents by Inventor Edwin B. Stevens

Edwin B. Stevens 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: 5712237
    Abstract: The present invention relates to compositions and methods of removal of contaminants from textiles and related fabrics and garments utilizing compositions which pose no significant risk to groundwater and which are substantially biodegradable. Compositions according to the present invention are substantially non-toxic, substantially bio-degradable liquids at room temperature or higher and are effective in removing substantial quantities of contaminants from fabrics, especially including garments. The present compositions contain at least one dibasic ester, an alcohol, water and at least one surfactant.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: January 27, 1998
    Inventor: Edwin B. Stevens