Patents by Inventor Herbert Mann

Herbert Mann 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).

  • Chromatography column and method of operation
    Patent number: 6736974
    Abstract: A chromatography column has valve and method for filling it with a slurry of media, the valve utilizing a piston to compact the slurry in the column. The piston moves through a cavity in communication with both a slurry inlet and slurry ports which are in communication with the interior of the chromatography column. The piston assists in compacting the slurry within the column. The method of filling the column does not require disassembly of the column. The piston may also be utilized to change the valve position from a slurry fill position to a normal operation position or other position.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: May 18, 2004
    Assignee: Mann Welding Company
    Inventor: Herbert Mann
  • Table top waste receptacle
    Patent number: D785891
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: May 2, 2017
    Inventors: Josephine Herbert Mann, William Evarts Benjamin, III