Patents by Inventor Mark D. Belser

Mark D. Belser 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).

  • Self-closing sealable valve bag
    Patent number: 6092930
    Abstract: A valve bag is provided having a self-closing feature to preclude sifting losses after filling, but before the bag is fully sealed, while enabling the facilitated final secure closure of the bag.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: July 25, 2000
    Assignee: Stone Container Corporation
    Inventors: Robert G. Kelley, Don G. Giles, Christopher S. Wadium, Michael R. Avila, Robert F. Kendall, Thomas L. Myers, Mark D. Belser, John P. Fuller, Michael D. Abar
  • Self-closing sealable valve bag
    Patent number: 5806982
    Abstract: A valve bag is provided having a self-closing feature to preclude sifting losses after filling, but before the bag is fully sealed, while enabling the facilitated final secure closure of the bag.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: September 15, 1998
    Assignee: Stone Container Corporation
    Inventors: Robert G. Kelley, Don G. Giles, Christopher S. Wadium, Michael R. Avila, Robert F. Kendall, Thomas L. Myers, Mark D. Belser, John P. Fuller, Michael D. Abar
  • Self-closing sealable valve bag
    Patent number: 5516210
    Abstract: A valve bag is provided having a self-closing feature, to preclude sifting losses after filling, but before the bag is fully sealed, while enabling the facilitated final secure closure of the bag.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: May 14, 1996
    Assignee: Stone Container Corporation
    Inventors: Robert G. Kelley, Don G. Giles, Christopher S. Wadium, Michael R. Avila, Robert F. Kendall, Thomas L. Myers, Mark D. Belser, John P. Fuller, Michael D. Abar