Patents by Inventor Shawn G. Dunkirk

Shawn G. Dunkirk 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).

  • Preparation of polymeric surfaces
    Patent number: 5741551
    Abstract: Surfaces are provided with desired characteristics of a polymer by covalently bonding polymer molecules to the surface through external activation of latent reactive groups carried by the polymer molecules. The initial surfaces are free of chemical groups added by surface pretreatement and which chemically participate in the covalent bonding process.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: April 21, 1998
    Assignee: BSI Corporation
    Inventors: Patrick E. Guire, Shawn G. Dunkirk, Mark W. Josephson, Melvin J. Swanson
  • Substrate surface preparation
    Patent number: 5512329
    Abstract: Surfaces are provided with desired characteristics of a polymer by covalently bonding polymer molecules to the surface through external activation (e.g., actinic radiation) of latent reactive groups, such as photoactivatable ketones, carried by the polymer molecules. The initial surfaces are free of chemical groups added by surface pretreatement and which chemically participate in the covalent bonding process.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: April 30, 1996
    Assignee: BSI Corporation
    Inventors: Patrick E. Guire, Shawn G. Dunkirk, Mark W. Josephson, Melvin J. Swanson
  • Method of biomolecule attachment to hydrophobic surfaces
    Patent number: 5258041
    Abstract: A method for attaching a biomolecule to a support having a hydrophobic surface, involving the use of a long chain chemical spacer having a hydrophobic guiding group capable of becoming embedded in the surface, and the biomolecule being covalently bound to the spacer at its opposite end.
    Type: Grant
    Filed: March 19, 1991
    Date of Patent: November 2, 1993
    Assignee: Bio-Metric Systems, Inc.
    Inventors: Patrick Guire, Shawn G. Dunkirk
  • Biomolecule attachment to hydrophobic surfaces
    Patent number: 5217492
    Abstract: A long chain chemical spacer useful for attaching a biomolecule to a support having a hydrophobic surface, the spacer having a hydrophobic guiding group capable of becoming embedded in the surface, and optionally including a stopping group and/or an attached biomolecule.
    Type: Grant
    Filed: April 3, 1991
    Date of Patent: June 8, 1993
    Assignee: Bio-Metric Systems, Inc.
    Inventors: Patrick Guire, Shawn G. Dunkirk
  • Preparation of polymeric surfaces via covalently attaching polymers
    Patent number: 5002582
    Abstract: A method wherein surfaces are provided with desired characteristics of a polymer by covalently bonding polymer molecules to the surface through external activation of latent reactive groups carried by the polymer molecules is disclosed. The initial surfaces are free of chemical groups added by surface pretreatment and which chemically participate in the covalent bonding process.This application is a divisional of application Ser. No. 223,149, filed July 22, 1988 now abandoned, which is a continuation-in-part of U.S. application Ser. No. 138,226, filed Dec. 24, 1987 now abandoned, which is a continuation-in-part of U.S. application Ser. No. 920,567, filed Oct. 17, 1986 now abandoned and of U.S. Ser. No. 108,765, filed Oct.15, 1987 now U.S. Pat. No. 4,973,493 which is a continuation-in-part of U.S. application Ser. No. 428,074 now U.S. Pat. No. 4,722,906 filed Sept. 29, 1982, and of U.S. application Ser. No. 920,567 filed Oct. 17, 1986.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: March 26, 1991
    Assignee: Bio-Metric Systems, Inc.
    Inventors: Patrick E. Guire, Shawn G. Dunkirk, Mark W. Josephson, Melvin J. Swanson