Patents by Inventor David Oppong

David Oppong 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: 10212937
    Abstract: Microbicidal aqueous solutions including (a) monochloramine and (b) at least one peracid, are described. Components (a) and (b) can be present in an effective amount to control the growth of at least one microorganism and the aqueous solution is at a pH of from about 5 to about 12. Methods for controlling the growth of microorganisms are also disclosed.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: February 26, 2019
    Assignee: Buckman Laboratories International, Inc.
    Inventors: David Oppong, Luis Zugno, Thomas E. McNeel, Shawn Paul Frenzel
  • Patent number: 9955698
    Abstract: Microbicidal compositions including (a) monochloramine and (b) at least one peracid, are described. Components (a) and (b) can be present in a synergistically effective amount to control the growth of at least one microorganism. Methods for controlling the growth of microorganisms with the application of the monochloramine and at least one peracid are also disclosed.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: May 1, 2018
    Assignee: Buckman Laboratories International, Inc.
    Inventors: David Oppong, Luis Zugno, Thomas E. McNeel
  • Publication number: 20170118989
    Abstract: Microbicidal compositions including (a) monochloramine and (b) at least one peracid, are described. Components (a) and (b) can be present in a synergistically effective amount to control the growth of at least one microorganism. Methods for controlling the growth of microorganisms with the application of the monochloramine and at least one peracid are also disclosed.
    Type: Application
    Filed: October 14, 2016
    Publication date: May 4, 2017
    Applicant: Buckman Laboratories International, Inc.
    Inventors: David Oppong, Luis Zugno, Thomas E. McNeel
  • Publication number: 20170118990
    Abstract: Microbicidal aqueous solutions including (a) monochloramine and (b) at least one peracid, are described. Components (a) and (b) can be present in an effective amount to control the growth of at least one microorganism and the aqueous solution is at a pH of from about 5 to about 12. Methods for controlling the growth of microorganisms are also disclosed.
    Type: Application
    Filed: October 28, 2016
    Publication date: May 4, 2017
    Applicant: Buckman Laboratories International, Inc.
    Inventors: David Oppong, Luis Zugno, Thomas E. McNeel, Shawn Paul Frenzel
  • Publication number: 20150118726
    Abstract: Methods for controlling the growth of bacteria in ethanol fermentation systems with antibiotic alternatives, which can be nonoxidizing biocides, stabilized oxidizers, or any combinations thereof, are described. As an option, a process or composition of the present invention can include one or more polycyclic antibacterial peptides. The methods can provide improvements, such as increased ethanol yields with minimal carryover of biocide into co-products of the processes.
    Type: Application
    Filed: December 30, 2014
    Publication date: April 30, 2015
    Applicant: BUCKMAN LABORATORIES INTERNATIONAL, INC.
    Inventors: Christopher L. Wiatr, Michael L. Corcoran, Thomas E. McNeel, Richard A. Clark, Rita de Cassia Bortoto Porto, David Oppong, Philip Hoekstra
  • Patent number: 8951960
    Abstract: Methods for controlling the growth of bacteria in ethanol fermentation systems with antibiotic alternatives, which can be nonoxidizing biocides, stabilized oxidizers, or any combinations thereof, are described. As an option, a process or composition of the present invention can include one or more polycyclic antibacterial peptides. The methods can provide improvements, such as increased ethanol yields with minimal carryover of biocide into co-products of the processes.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: February 10, 2015
    Assignee: Buckman Laboratories International, Inc.
    Inventors: Christopher L. Wiatr, Michael L. Corcoran, Thomas E. McNeel, Richard A. Clark, Rita de Cassia Bortoto Porto, David Oppong
  • Publication number: 20110230394
    Abstract: Methods for controlling the growth of bacteria in ethanol fermentation systems with antibiotic alternatives, which can be nonoxidizing biocides, stabilized oxidizers, or any combinations thereof, are described. As an option, a process or composition of the present invention can include one or more polycyclic antibacterial peptides. The methods can provide improvements, such as increased ethanol yields with minimal carryover of biocide into co-products of the processes.
    Type: Application
    Filed: March 16, 2011
    Publication date: September 22, 2011
    Applicant: BUCKMAN LABORATORIES INTERNATIONAL, INC.
    Inventors: Christopher L. Wiatr, Michael L. Corcoran, Thomas E. McNeel, Richard A. Clark, Rita de Cassia Bortoto Porto, David Oppong
  • Publication number: 20070251020
    Abstract: Methods of preventing or inhibiting putrefaction, degradation, and/or deterioration of a surface of wet animal hide or skin are described. The method can include applying a composition containing at least one minimum risk fungicide to the surface or to a solid, liquid or gas that comes in contact with the surface. Treated hides or skin are further described.
    Type: Application
    Filed: April 25, 2007
    Publication date: November 1, 2007
    Inventors: George B. Stockman, David Oppong
  • Publication number: 20060112494
    Abstract: Animal skins, pelts, and hides are protected from putrefaction, degradation or deterioration caused by metalloproteinases such as collagenase by applying at least one metalloproteinase inhibitor to a fluid in which the animal skin or hide is dipped or soaked, or applying at least one metalloproteinase inhibitor to a solid surface that directly or indirectly comes into contact with the animal skin or hide
    Type: Application
    Filed: December 1, 2004
    Publication date: June 1, 2006
    Inventors: David Oppong, Ravi Rangarajan, Stephen Bryant
  • Publication number: 20040175352
    Abstract: Microbicidal compositions including (a) an ionene polymer and (b) 2,4,4′-trichloro-2′-hydroxydiphenyl ether are described. The ionene polymer and 2,4,4′-trichloro-2′-hydroxydiphenyl ether can be present in a synergistically effective amount to control the growth of at least one microorganism. Methods for controlling the growth of microorganisms with the compositions are also disclosed.
    Type: Application
    Filed: March 6, 2003
    Publication date: September 9, 2004
    Inventors: David Oppong, Graciella H. Vunk, Russell E. Fues
  • Patent number: 6576629
    Abstract: A method for increasing the effectiveness of the microbicide propiconazole, (RS)-1-2-[(2,4-dichlorophenyl)-2-propyl-1,3-dioxalan-2ylmethyl]-1H-1,2,4-triazole, is described. In the method, propiconazole and a potentiator, an N-alkyl heterocyclic compound, its salt, or a mixture thereof, are applied to a substrate or aqueous system subject to the growth of microorganisms. The N-alkyl heterocyclic compound, its salt, or a mixture thereof is applied in an amount effective to increase the microbicidal activity of the microbicide. The N-alkyl heterocyclic compound has the formula: The variable “n” ranges from 5 to 17, and the heterocyclic ring defined by is a substituted or unsubstituted ring having four to eight members. Microbicidal compositions are described where propiconazole and an N-alkyl heterocyclic compound, its salt, or a mixture thereof are present in a combined amount: effective to control the growth of at least one microorganism.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: June 10, 2003
    Assignee: Buckman Laboratories International, Inc.
    Inventors: David Oppong, Marilyn S. Whittemore, M. Sheldon Ellis, Robert H. Miller, Jr., Xiaugdong Zhou, Michael E. Elmore
  • Patent number: 6103666
    Abstract: Compositions comprising an ionene polymer and a salt of dodecylamine are disclosed which are synergistically effective compared to the respective components alone in controlling the growth of microorganisms in or on a material or medium. Methods to control the growth of microorganisms with the use of the compositions of the present invention are also disclosed.
    Type: Grant
    Filed: September 10, 1998
    Date of Patent: August 15, 2000
    Assignee: Buckman Laboratories International, Inc.
    Inventors: Fernando Del Corral, Percy Jaquess, David Oppong
  • Patent number: 6008236
    Abstract: Compositions comprising an ionene polymer and a pyrithione salt are disclosed which are synergistically effective compared to the respective components alone in controlling the growth of microorganisms in or on a material or medium. Methods to control the growth of microorganisms and prevent spoilage caused by microorganisms with the use of the compositions of the present invention are also disclosed.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: December 28, 1999
    Assignee: Buckman Laboratories International, Inc.
    Inventors: David Oppong, Russel E. Fues, Graciella H. Canullo
  • Patent number: 5929073
    Abstract: Compositions for controlling the growth of microorganisms in or on a product, material, or medium comprising synergistically effective amounts of (a) dodecylmorpholine or a salt thereof and (b) dodecylamine or a salt thereof are disclosed. Methods to control the growth of microorganisms and prevent spoilage caused by microorganisms with the use of the compositions of the present invention are also disclosed.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: July 27, 1999
    Assignee: Buckman Laboratories International, Inc.
    Inventors: David Oppong, Percy A. Jaquess, Fernando Del Corral, Marilyn S. Whittemore
  • Patent number: 5902820
    Abstract: Microbicidal compositions are described. The compositions contain (a) propiconazole and (b) dodecylamine or a dodecylamine salt. The propiconazole and dodecylamine or dodecylamine salt are present in a synergistically effective amount to control the growth of at least one microorganism. Methods for controlling the growth of microorganisms on various substrates or in aqueous systems are also described. Also described is the industrial application of the microbicidal composition in the leather industry, the lumber industry, the papermaking industry, the textile industry, the agricultural industry, and the coating industry, as well as in aqueous systems.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: May 11, 1999
    Assignee: Buckman Laboratories International Inc.
    Inventors: Percy A. Jacquess, David Oppong, Sheldon M. Ellis, L. Fernando Del Corral
  • Patent number: 5874453
    Abstract: Compositions comprising a mixture of 2-(thiocyanomethylthio)benzothiazole and methylene-bis(thiocyanate) with dimethylamide of a carboxylic acid are disclosed which are synergistically effective compared to the respective components alone in controlling the growth of microorganisms in or on a product, material, or medium. Methods to control the growth of microorganisms and prevent spoilage caused by microorganisms with the use of the compositions of the present invention are also disclosed.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: February 23, 1999
    Assignee: Buckman Laboratories International, inc.
    Inventors: David Oppong, Vanja M. King
  • Patent number: 5843865
    Abstract: Compositions comprising an ionene polymer and a salt of dodecylamine are disclosed which are synergistically effective compared to the respective components alone in controlling the growth of microorganisms in or on a material or medium. Methods to control the growth of microorganisms with the use of the compositions of the present invention are also disclosed.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: December 1, 1998
    Assignee: Buckman Laboratories International, Inc.
    Inventors: Fernando Del Corral, Percy Jaquess, David Oppong
  • Patent number: 5776960
    Abstract: Compositions comprising an ionene polymer and a pyrithione salt are disclosed which are synergistically effective compared to the respective components alone in controlling the growth of microorganisms in or on a material or medium. Methods to control the growth of microorganisms and prevent spoilage caused by microorganisms with the use of the compositions of the present invention are also disclosed.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: July 7, 1998
    Assignee: Buckman Laboratories International, Inc.
    Inventors: David Oppong, Russel E. Fues, Graciela H. Vunk
  • Patent number: 5728730
    Abstract: Compositions for controlling the growth of microorganisms in or on a product, material or medium comprising synergistically effective amounts of methylene-bis(thiocyanate) and at least one organic acid, its salt or ester are disclosed. Methods to control the growth of microorganisms and prevent spoilage caused by microorganisms with the use of the compositions of the present invention are also disclosed.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: March 17, 1998
    Assignee: Buckman Laboratories International, Inc.
    Inventors: David Oppong, Vanja M. King
  • Patent number: 5726206
    Abstract: Compositions for controlling the growth of microorganisms in or on a product, material or medium comprising synergistically effective amounts of halogenated acetophenones, such as 2-bromo-4-hydroxyacetophenone, and at least one organic acid, its salt or ester are disclosed. Methods to control the growth of microorganisms and prevent spoilage caused by microorganisms with the use of the compositions of the present invention are also disclosed.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: March 10, 1998
    Assignee: Buckman Laboratories International, Inc.
    Inventors: David Oppong, Vanja M. King