Patents by Inventor Herbert Christensen

Herbert Christensen 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: 8535728
    Abstract: Colorless composition comprising silver particles and water, wherein said particles comprise an interior of elemental silver and an exterior of ionic silver oxide, wherein the silver particles are present in the water at a level of about 5-40 ppm, and wherein the composition manifests significant antimicrobial properties. Methods of use of the composition are described. The composition can be incorporated into a hydrogel with essentially no loss of antimicrobial properties.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: September 17, 2013
    Assignee: American Silver, LLC
    Inventors: Robert J. Holladay, Herbert Christensen, William Moeller
  • Publication number: 20080181951
    Abstract: We disclose a colorless composition comprising silver particles and water, wherein said particles comprise an interior of elemental silver and an exterior of ionic silver oxide, wherein the silver particles are present in the water at a level of about 5-40 ppm, and wherein the composition manifests significant antimicrobial properties. Methods of use of the composition are described.
    Type: Application
    Filed: January 22, 2008
    Publication date: July 31, 2008
    Applicant: AMERICAN SILVER, LLC
    Inventors: Robert J. HOLLADAY, Herbert CHRISTENSEN, William D. MOELLER
  • Publication number: 20070023278
    Abstract: An apparatus and method for positioning each of the many silver electrodes in the tank of solution such that arcing does not occur. This consists of a light or electromagnetic detector held in the tank of solution so as to be close to the point where the silver electrode comes in contact with the solution. When the silver electrode comes out of the solution such that an electrical arc occurs the detector observes this and sends a signal to the motor control. This signal is in turn sent to the gear head electric motor causing it to turn. This turning action causes the two pressure rollers to turn and move the silver wire, which is held between the rollers, down into the solution until the arcing stops.
    Type: Application
    Filed: August 1, 2005
    Publication date: February 1, 2007
    Inventor: Herbert Christensen
  • Patent number: 7135195
    Abstract: We disclose a colorless composition comprising silver particles and water, wherein said particles comprise an interior of elemental silver and an exterior of ionic silver oxide, wherein the silver particles are present in the water at a level of about 5–40 ppm, and wherein the composition manifests significant antimicrobial properties. Methods of use of the composition are described.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: November 14, 2006
    Assignee: American Silver, LLC
    Inventors: Robert J. Holladay, Herbert Christensen, William D. Moeller
  • Publication number: 20050061678
    Abstract: We disclose a colorless composition comprising silver particles and water, wherein said particles comprise an interior of elemental silver and an exterior of ionic silver oxide, wherein the silver particles are present in the water at a level of about 5-40 ppm, and wherein the composition manifests significant antimicrobial properties. Methods of use of the composition are described.
    Type: Application
    Filed: August 15, 2003
    Publication date: March 24, 2005
    Inventors: Robert Holladay, Herbert Christensen, William Moeller
  • Patent number: 6743348
    Abstract: An apparatus and method for producing colloidal silver. A large-volume container, such as a fifteen gallon container, includes a hinged lid on which a rotational impeller is mounted along with several sets of electrodes that are electrically connected to a power transformer. The container is partially filled with water, and when the lid is closed, the sets of electrodes are disposed in communication with the water in a predetermined arrangement, and the impeller resides submerged in the water. Certain of the electrodes constitute silver wire. The power transformers convey current to the electrodes, preferably alternating current, at voltages sufficient to cause silver particles to separate from the silver wire and enter the solution in a stable, suspended state. The impeller is rotated, preferably continuously, to prevent the suspended silver from remaining in upper levels of the water, thereby dispersing the silver particles more uniformly throughout the volume of water.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: June 1, 2004
    Inventors: Robert J. Holladay, Herbert Christensen, William D. Moeller
  • Publication number: 20020071792
    Abstract: An apparatus and method for producing colloidal silver. A large-volume container, such as a fifteen gallon container, includes a hinged lid on which a rotational impeller is mounted along with several sets of electrodes that are electrically connected to a power transformer. The container is partially filled with water, and when the lid is closed, the sets of electrodes are disposed in communication with the water in a predetermined arrangement, and the impeller resides submerged in the water. Certain of the electrodes constitute silver wire. The power transformers convey current to the electrodes, preferably alternating current, at voltages sufficient to cause silver particles to separate from the silver wire and enter the solution in a stable, suspended state. The impeller is rotated, preferably continuously, to prevent the suspended silver from remaining in upper levels of the water, thereby dispersing the silver particles more uniformly throughout the volume of water.
    Type: Application
    Filed: September 4, 2001
    Publication date: June 13, 2002
    Inventors: Robert J. Holladay, Herbert Christensen, William D. Moeller
  • Patent number: 6214299
    Abstract: An apparatus and method for producing colloidal silver. A large-volume container, such as a fifteen gallon container, includes a hinged lid on which a rotational impeller is mounted along with several sets of electrodes that are electrically connected to a power transformer. The container is partially filled with water, and when the lid is closed, the sets of electrodes are disposed in communication with the water in a predetermined arrangement, and the impeller resides submerged in the water. Certain of the electrodes constitute silver wire. The power transformers convey current to the electrodes, preferably alternating current, at voltages sufficient to cause silver particles to separate from the silver wire and enter the solution in a stable, suspended state. The impeller is rotated, preferably continuously, to prevent the suspended silver from remaining in upper levels of the water, thereby dispersing the silver particles more uniformly throughout the volume of water.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: April 10, 2001
    Inventors: Robert J. Holladay, Herbert Christensen, William D. Moeller