Patents by Inventor Rudolph N. Holme

Rudolph N. Holme 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 beneficiating non-sulfide minerals
    Patent number: 4199064
    Abstract: The use of a collector combination of a fatty acid and a N-sulfodicarboxylic acid aspartate provides boostering action in the recovery of non-sulfide minerals.
    Type: Grant
    Filed: December 21, 1977
    Date of Patent: April 22, 1980
    Assignee: American Cyanamid Company
    Inventor: Rudolph N. Holme
  • Combination of a fatty acid and an N-sulfodicarboxylic acid asparate as collectors for non-sulfide ores
    Patent number: 4139482
    Abstract: A collector combination of a fatty acid and an N-sulfodicarboxylic acid aspartate provides boostering action in the recovery of non-sulfide minerals.
    Type: Grant
    Filed: December 21, 1977
    Date of Patent: February 13, 1979
    Assignee: American Cyanamid Company
    Inventor: Rudolph N. Holme