Patents by Inventor Alan B. Todtenkopf

Alan B. Todtenkopf 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).

  • Solution preparation system
    Patent number: 5402834
    Abstract: Solutions are prepared by accurately dispensing and weighing concentrated solutions of salts, acids and bases as well as water or organic solvent, and mixing to achieve homogeneity. The final solution may be stored or used directly from the system.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: April 4, 1995
    Assignee: Merck & Co., Inc.
    Inventors: Michael D. Levin, William F. Richardson, Alan B. Todtenkopf