Patents by Inventor Alexander W. Breen

Alexander W. Breen 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).

  • Method for the enhancing biocidal activity
    Publication number: 20080269337
    Abstract: A treatment for enhancing the activity of isothiazolinone compounds to control the growth of microbes in an aqueous system is disclosed, which comprises adding to said isothiazolinone compounds an amount of an alkylsulfosuccinate surfactant sufficient to improve efficacy of the isothiazolinone compound. Each alkyl group of the alkylsulfosuccinate contains at least 10 carbons.
    Type: Application
    Filed: April 30, 2007
    Publication date: October 30, 2008
    Inventors: Alexander W. Breen, Michael J. Mayer
  • Method and apparatus for producing synergistic biocide
    Patent number: 7311878
    Abstract: An apparatus and methods to produce synergistic mixtures (or combinations) of haloamines to control growth of microorganisms in aqueous systems are disclosed. The apparatus and methods to produce synergistic mixtures entails producing a batch quantity of a haloamine and converting part of the haloamine to a second haloamine species to form the synergistic mixture.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: December 25, 2007
    Assignee: Hercules Incorporated
    Inventors: Freddie L. Singleton, Michael J. Mayer, Alexander W. Breen
  • Detection of spore forming bacteria
    Publication number: 20040014122
    Abstract: Methods for the systematic identification of sporulation genes in spore forming bacteria comprising amplifying a portion of a gene from total cellular DNA of said spore forming bacteria by using a primer; and detecting the presence of the amplification product.
    Type: Application
    Filed: June 27, 2003
    Publication date: January 22, 2004
    Inventors: Alexander W. Breen, Freddie L. Singleton
  • Methods of using hop acids to control organisms
    Patent number: 6547971
    Abstract: Methods of inhibiting the growth of organisms in aqueous systems such as papermaking systems, cooling systems and process waters of various types, comprises adding to the aqueous system a hop acid. Compositions comprising hop acids and papermaking suspensions or slurries, and/or additives, such as paper making additives, are also provided.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: April 15, 2003
    Assignee: Hercules Incorporated
    Inventors: Alexander W. Breen, John M. Cronan, Jr., Phillip S. Davis, Michael J. Mayer, Freddie L. Singleton
  • Methods of using hop acids to control organisms
    Publication number: 20030015480
    Abstract: Methods of inhibiting the growth of organisms in aqueous systems such as papermaking systems, cooling systems and process waters of various types, comprises adding to the aqueous system a hop acid. Compositions comprising hop acids and papermaking suspensions or slurries, and/or additives, such as paper making additives, are also provided.
    Type: Application
    Filed: March 8, 2000
    Publication date: January 23, 2003
    Inventors: Alexander W. Breen, John M. Cronan, Phillip S. Davis, Michael J. Mayer, Freddie L. Singleton
  • Primers for the detection of spore forming bacteria
    Patent number: 5928875
    Abstract: A process using polymerize chain reaction (PCR) technology is described for the detection of spore forming bacteria in paper products and paper manufacturing streams and additives. Disclosed and claimed are novel nucleotide primers which specifically amplify sporulation genes common to spore forming bacteria. These primers produce gene fragments diagnostic for the presence of spore forming bacteria.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: July 27, 1999
    Assignee: BetzDearborn Inc.
    Inventors: Alexander W. Breen, Freddie L. Singleton