Patents by Inventor Lorenzo Dow Geren

Lorenzo Dow Geren 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 of forming filling and sealing an industrial size bag
    Patent number: 4074504
    Abstract: Side gusseted industrial bags are continuously (or intermittently) formed from continuous web materials, and simultaneously filled and sealed in one fast operation by the method and apparatus of this invention.
    Type: Grant
    Filed: December 6, 1976
    Date of Patent: February 21, 1978
    Assignee: The Dow Chemical Company
    Inventors: Eddie Lee Greenawalt, Lorenzo Dow Geren
  • Method and apparatus for registration of web material in forming filling and sealing industrial bags
    Patent number: 4009551
    Abstract: Side gusseted industrial bags are continuously (or intermittently) formed from continuous web materials, and simultaneously filled and sealed in one fast operation by the method and apparatus of this invention.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: March 1, 1977
    Assignee: The Dow Chemical Company
    Inventors: Eddie Lee Greenawalt, Lorenzo Dow Geren