Patents Assigned to Applied Biochemists, Inc.
  • Method of removing cyanuric acid from bather water
    Patent number: 4793935
    Abstract: A method removing cyanuric acid from bather water in swimming pools, spas, and the like. Melamine is added to the bather water in a quantity sufficient to react with the cyanuric acid and form a precipitate. The insoluble precipitate can then be vacuumed or removed through the filtration system of the pool.
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: December 27, 1988
    Assignee: Applied Biochemists, Inc.
    Inventor: Neil W. Stillman
  • Method of cleaning using liquid compositions comprising stabilized mixtures of enzymes
    Patent number: 4566985
    Abstract: A liquid enzyme cleaning composition. The composition includes a water base containing in solution a mixture of enzymes including a protease and at least one other enzyme. To inhibit the digestive effect of protease on the other enzymes in solution, the composition contains an effective amount of a benzamidine hydrohalide. At the time of use, the composition is diluted with additional water which releases the inhibitory effect of the benzamidine hydrohalide, so that the protease is free to act against proteinaceous soils in the material to be cleaned.
    Type: Grant
    Filed: September 19, 1984
    Date of Patent: January 28, 1986
    Assignee: Applied Biochemists, Inc.
    Inventors: Leonard C. Bruno, Mark M. Bruno
  • Method of preparing a copper complex for use as an algaecide
    Patent number: 4324578
    Abstract: A method of preparing a copper complex to be used in eliminating the growth of aquatic or marine plant life, such as algae. The copper complex is formed by reacting finely divided water-insoluble copper carbonate with the combination of monoethanolamine and triethanolamine. The copper compound is completely solubilized and complexed by the combination to provide a copper complex having improved stability and containing an increased amount of elemental copper as compared to copper complexes formed by prior methods, thereby making the complex more effective as an algaecide.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: April 13, 1982
    Assignee: Applied Biochemists, Inc.
    Inventors: Donald E. Seymour, Greg A. Seymour, Mark J. Jaber
  • Algaecidal composition
    Patent number: 4098602
    Abstract: An algaecidal composition comprising the combination of an ammonium quaternary compound and a copper complex formed by reacting a copper compound with a complexing material, such as an alkanolamine, a tertiary amine, a diamine, ammonium hydroxide, or a polyethylene glycol. The algaecidal composition has extended stability and shelf-life and possess improved algaecidal effectiveness.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: July 4, 1978
    Assignee: Applied Biochemists, Inc.
    Inventors: Donald E. Seymour, James C. Schmidt, Donald A. Bezella
  • Algaecidal composition
    Patent number: 3930834
    Abstract: A method of preparing a copper complex for use in eliminating the growth of marine plant life such as algae. The copper complex is provided by initially reacting an insoluble copper compound with an aqueous solution of an acid to dissociate the copper ions, and thereafter chelating the released copper ions to form a copper complex. The resulting complex has improved stability to both heat and light and contains an increased amount of copper compared to copper complexes formed by prior methods, thereby making the complex more effective as an algaecide.
    Type: Grant
    Filed: January 14, 1974
    Date of Patent: January 6, 1976
    Assignee: Applied Biochemists, Inc.
    Inventors: David T. Schulteis, Donald E. Seymour