Patents by Inventor Robert M. Silverstein

Robert M. Silverstein 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).

  • Method for the early detection, localization and control of khapra beetles and their larvae, and an odor, taste and/or contact-responsive trap for carrying out the method
    Patent number: 4227333
    Abstract: A contact and odor responsive device for trapping khapra beetles and their larvae in which fibrous paper or fabric strips are constructed to provide contact allowing forms containing pheromone attraction means, food attractive means and lethal means for destroying the beetles and a method of using said traps to detect and destroy the beetles and their larvae.
    Type: Grant
    Filed: September 28, 1977
    Date of Patent: October 14, 1980
    Inventors: Hermann Levinson, Anna-Rose Levinson, Wendell Burkholder, Robert M. Silverstein, Robert Cassidy
  • Chemical attractant for smaller European bark beetle
    Patent number: 4034080
    Abstract: A method is described for combating the bark beetle Scolytus multistriatis. The method uses an attractant mixture of three compounds: 4-methyl-3-heptanol; 2,4-dimethyl-5-ethyl-6,8-dioxabicyclo (3.2.1) octane; and .alpha.-cubebene. Traps containing the mixture are set out in or near infested areas. When a sufficient number of beetles have been lured into the traps, they are removed and destroyed. Alternatively, the traps contain an insecticide which enables the traps to remain onsite for a longer period.
    Type: Grant
    Filed: January 14, 1976
    Date of Patent: July 5, 1977
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Robert M. Silverstein, William E. Gore, Glenn T. Pearce, Roy A. Cuthbert, John B. Simeone, Gerald N. Lanier, John W. Peacock
  • Purification of plasminogen
    Patent number: 3943245
    Abstract: The purification of plasminogen from human and non-human mammalian plasma or Cohn Fraction III by modified affinity chromotography using Sepharose-L-lysine with high ionic strength buffer solutions as in ion exchange chromatography is described. A plasminogen is produced in great yield having unexpectedly enhanced activity toward N.sup..alpha.-CBZ-L-lysine p-nitrophenyl ester, enhanced fibrinolytic activity and significantly less contamination by unknown colloidal substances.
    Type: Grant
    Filed: February 14, 1974
    Date of Patent: March 9, 1976
    Assignee: Armour Pharmaceutical Company
    Inventor: Robert M. Silverstein