Patents by Inventor Mark R. Harrison

Mark R. Harrison 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).

  • Patent number: 5930356
    Abstract: A telephone handset cover configured to closely and substantially cover a telephone handset and having an opening extending the length of one side for insertion of the handset. The handset cover is used to protect individuals from germs or other hazards associated with the use of public telephones. The handset cover is made of molded plastic material and has apertures in the mouthpiece and earpiece to facilitate normal use of the telephone handset. The opening along the one side allows a user to insert the telephone handset into the cover while the handset hangs on a telephone hook, which provides full coverage of the mouthpiece and earpiece surfaces that lie in closest proximity to the head of the user and prevents contact with the handset.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: July 27, 1999
    Inventor: Mark R. Harrison
  • Patent number: 5924240
    Abstract: A device for watering and feeding living plants including a cylindrical tube, closed at the bottom and the top having a funnel-shaped orifice to receive and hold an inverted reservoir (for example, a two or three liter plastic bottle). The tube is buried vertically in earth or plant soil to expose only the orifice, which may be capped when not in use allowing camouflage of the device at the soil surface. Two holes in the sidewall of the tube allow water and water soluble plant nutrients to pass therethrough slowly.
    Type: Grant
    Filed: August 12, 1997
    Date of Patent: July 20, 1999
    Inventor: Mark R. Harrison
  • Patent number: 5066394
    Abstract: Apparatus including an aquarium tank formed of a floor and spaced side walls with the organization arranged interiorly of the aquarium adjacent to an upper water level of water within the aquarium. The apparatus includes a single or plurality of pump members to direct water through a housing including filtration portions thereon to direct the recycled and thusly cleaned water through output conduits arranged adjacent the side walls of the aquarium and to direct the thusly cleaned water through a circulation tube to direct the water at the water level surface to enhance aeration and minimize turbulence within the aquarium. The circulation tube in a modified embodiment is formed of a transparent material including an array of parallel fiber optic cables to effect illumination and coloration of the recirculated water for an enhanced visual effect.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: November 19, 1991
    Inventor: Mark R. Harrison