Patents by Inventor Samuel S. N. Wang

Samuel S. N. Wang 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 flotation of non-sulfide ores
    Patent number: 4110207
    Abstract: Process for flotation of non-sulfide ores using partial esters of polycarboxylic acids having the following structure ##STR1## wherein R is an alkyl group of about 4 to 12 carbon atoms, R" is hydrogen or an alkyl group of up to 12 carbon atoms, n is a number 0-3, and R' is a bivalent grouping of a selected class in combination with fuel oil and alkali.
    Type: Grant
    Filed: January 5, 1976
    Date of Patent: August 29, 1978
    Assignee: American Cyanamid Company
    Inventors: Samuel S. N. Wang, Eugene L. Smith, Jr.