Patents by Inventor Darrell W. Trampel

Darrell W. Trampel 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).

  • Serpulina pilosicoli competitive exclusion product
    Patent number: 6315993
    Abstract: A competitive exclusion product is described which includes a substantially pure culture of the bacterium species Serpulina pilosicoli, or a genetic equivalent thereof. When administered to an animal, the S. pilosicoli colonizes the cecal wall to prevent the colonization of other harmful bacteria, thereby preventing disease.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: November 13, 2001
    Assignee: Iowa State University Research Foundation, Inc.
    Inventor: Darrell W. Trampel
  • Egg inoculation device and method of using same
    Patent number: 4928628
    Abstract: A device is shown for inoculating eggs where the egg is supported from movement, and inoculant fluid is forced at positive pressure into an inoculant chamber abutting one end of the egg, where the fluid is forced through the pores of the shell to the interior of the egg, without causing damage to the shell.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: May 29, 1990
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Max P. Gassman, David J. Larson, Darrell W. Trampel
  • Egg inoculation method
    Patent number: 4928629
    Abstract: A method is disclosed for inoculating eggs without damaging the shell of the egg, where the outer cuticle of at least a portion of the egg is removed, and the inoculant fluid introduced to the pores of the egg at a pressure satisfactory to penetrate through the pores to the interior of the egg, while not damaging the shell.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: May 29, 1990
    Assignee: Iowa State University Research Foundation, Inc.
    Inventor: Darrell W. Trampel