Patents by Inventor Donald Lee Smathers

Donald Lee Smathers 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 making lower alkyl formamides
    Patent number: 4101577
    Abstract: A process for making formamides by contacting an intimate admixture of (a) gaseous CO, (b) a non-tertiary amine and (c) a lower alkanol with a strongly basic anion exchange resin.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: July 18, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Donald Lee Smathers
  • Process for making lower alkyl formates
    Patent number: 4100360
    Abstract: A process for making lower alkyl formates by contacting an intimate admixture of gaseous CO and liquid lower alkanol with a strongly basic anion exchange resin.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: July 11, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Donald Lee Smathers