Patents by Inventor Donna L. Christofel

Donna L. Christofel 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).

  • Device and method for maintaining an open pouch structure
    Patent number: 5970979
    Abstract: The invention comprises a fluid collection pouch for use during surgical procedures to collect fluids and surgical debris. It comprises a flexible fluid retaining bag having an open top fitted with a flexible, compressible multi-channeled rib. The multi-channeled rib allows fluid to enter the bag even if accidentally closed.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: October 26, 1999
    Inventors: Donna L. Christofel, Joseph F. Thompson
  • Bilateral extremity drape
    Patent number: D370822
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: June 18, 1996
    Assignee: Baxter International, Inc.
    Inventors: Joseph A. Palomo, Donna L. Christofel, Nancy L. Walker, Robert B. Walker
  • Combined universal spine drape and anesthesia screen
    Patent number: D373921
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: September 24, 1996
    Assignee: Baxter International, Inc.
    Inventors: Joseph A. Palomo, Nancy L. Walker, Donna L. Christofel