Patents by Inventor James Kroeker

James Kroeker 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).

  • Artificial habitat for aquatic animals
    Patent number: 4903636
    Abstract: An artificial habitat for aquatic animals includes a frame defining an opening surrounded by the frame, a screen attached to the frame and covering the opening for supporting aquatic animals, the frame being supported with the screen at a given level, and water being circulated along at least part of the screen for removing waste from the screen.
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: February 27, 1990
    Inventor: James Kroeker
  • Artificial habitat for aquatic .[.animals.]. .Iadd.worms .Iaddend.
    Patent number: RE34545
    Abstract: An artificial habitat for aquatic .[.animals.]. .Iadd.worms .Iaddend.includes a frame defining an opening surrounded by the frame, a screen attached to the frame and covering the opening for supporting aquatic .[.animals.]. .Iadd.worms, .Iaddend.the frame being supported with the screen at a given level.[., and water being.]. .Iadd.such that the worms are partially above and partially below the water level. The water may be .Iaddend.circulated along at least part of the screen for .Iadd.supplying water to the worms and .Iaddend.removing waste from the screen.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: February 15, 1994
    Inventor: James Kroeker