Patents by Inventor John S. Chapman

John S. Chapman 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).

  • Process for providing antimicrobial surfaces
    Patent number: 7601361
    Abstract: Processes for providing durable antimicrobial surfaces are disclosed that comprise treating a polymer substrate surface with formaldehyde followed by treatment with an antimicrobial peptide. Further embodiments include articles, including medical devices, characterized by a durable antimicrobial surface provided by the processes of the invention.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: October 13, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Helen S. M. Lu, John S. Chapman, Albert Gordon Anderson
  • PROCESS FOR PROVIDING ANTIMICROBIAL SURFACES
    Publication number: 20090087466
    Abstract: Processes for providing durable antimicrobial surfaces are disclosed that comprise treating a polymer substrate surface with formaldehyde followed by treatment with an antimicrobial peptide. Further embodiments include articles, including medical devices, characterized by a durable antimicrobial surface provided by the processes of the invention.
    Type: Application
    Filed: October 30, 2008
    Publication date: April 2, 2009
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Helen S. M. Lu, John S. Chapman, Albert Gordon Anderson
  • Immunoassay for isothiazolones
    Patent number: 5554542
    Abstract: Immunoassay for isothiazolones based on monoclonal antibodies that react with isothiazolones, particularly, 5-chloro-2-methyl-3-isothiazolone, hybridomas that produce such antibodies, especially ATCC HB 11435, a method of preparing an immunogenic conjugate of isothiazolones and a macromolecule carrier, a method of producing monoclonal antibodies reactive with isothiazolones, and compositions comprising monoclonal or polyclonal antibodies reactive with isothiazolones.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: September 10, 1996
    Assignee: Rohm and Haas Company
    Inventors: Gary L. Willingham, Richard F. Schuman, Chun-Hsien Huang, John S. Chapman
  • Process for butchering and disinfecting fowl
    Patent number: 5208057
    Abstract: A process for butchering fowl which comprises a step wherein said fowl is treated with water comprising introducing an effective amount of a bromide (for example, KBr, NH.sub.4 Br, or NaBr) and an oxidant into said water to control microorganisms. The process is especially suitable for poultry such as chicken and turkey.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: May 4, 1993
    Assignee: Rohm and Haas Company
    Inventors: David E. Greenley, Adam Chi-Tung Hsu, Barry C. Lange, Eilenn F. Warwick, Samuel E. Sherba, John S. Chapman