Patents by Inventor Hans A. Ward

Hans A. Ward 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).

  • Synergistic combination of fungicides to protect wood and wood-based products and wood treated by such combination as well as methods of making the same
    Publication number: 20040248973
    Abstract: A wood treatment composition having a synergistic combination of fungicides which may include two or more compounds. These combinations are shown to be especially effective in providing resistance to decay, mold and mildew when wood is treated with these combinations. Also provided is wood treated by these combinations, and a method of treatment for composite wood.
    Type: Application
    Filed: January 24, 2003
    Publication date: December 9, 2004
    Inventors: Alan S. Ross, Brian Marks, Hans Ward
  • Method analysis for the presence of wood treatment substances on wood
    Patent number: 6606155
    Abstract: A method of determining the presence and quantity of wood treatment substance (pesticides, water repellants, dimension stabilizers and the like) on wood is provided. The wood treatment substance is combined with a fluorescent material and applied to wood. A light beam is impinged on the wood, and reflected light measured by a spectral device. Color saturation level of the reflected light is determined with a microprocessor. From this measurement a quantity of wood treatment substance on the wood can then be determined.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: August 12, 2003
    Assignee: Kopcoat, Inc.
    Inventors: Alan S. Ross, Hans A. Ward
  • Synergistic combination of insecticides to protect wood and wood-based products from insect damage
    Patent number: 6582732
    Abstract: A wood treatment material having a synergistic combination of insecticides including boron-containing compounds and synthetic pyrethroids, is provided. This combination is shown to be especially effective in providing resistance to insect attack when wood is treated with this combination. Resistance to attack by Formosan termites, in particular, is provided, in a cost-effective manner. Also provided is wood treated by this combination, and a method of treatment for composite wood.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: June 24, 2003
    Assignee: Kop-Coat, Inc.
    Inventors: Raymond Bender, Alan S. Ross, Hans A. Ward
  • Synergistic combination of fungicides to protect wood and wood-based products from fungal decay, mold and mildew damage
    Patent number: 6416789
    Abstract: A wood treatment material having a synergistic combination of fungicides including boron-containing compounds, organo-iodine compounds and amine-oxides is provided. This combination is shown to be especially effective in providing resistance to decay, mold and mildew when wood is treated with this combination. Also provided is wood treated by this combination, and a method of treatment for composite wood.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: July 9, 2002
    Assignee: Kop-Coat, Inc.
    Inventors: Brian Marks, Alan S. Ross, Hans A. Ward
  • Wood preservatives
    Patent number: 4950685
    Abstract: A synergistic wood preservative composition is provided comprising a quaternary ammonium compound and 3-iodo-2-propynyl butyl carbamate having the properties of providing stain resistance to wood. The quaternary ammonium compound is preferably selected from the group consisting of didecyldimethyl ammonium chloride, tri-methyl-coco-ammonium chloride and dimethyl-di-coco-ammonium chloride.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: August 21, 1990
    Assignee: Kop-Coat, Inc.
    Inventor: Hans A. Ward
  • Novel biocides employing resorcinol derivatives
    Patent number: 4645780
    Abstract: A method of protecting organic materials from fungi and/or bacteria is provided which comprises applying to said organic material a minor but effective biocidal amount of a compound of the formula: ##STR1## wherein M is selected from H,P and an alkali metal or alkali earth metal and n is an integer selected from 1 to 3.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: February 24, 1987
    Assignee: Koppers Company, Inc.
    Inventors: Hans Dressler, Hans A. Ward