Patents by Inventor David K. Jeng

David K. Jeng 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: 6499495
    Abstract: The present invention provides an apparatus and method for treatment of waste from suction canisters. The waste treatment system includes a canister-cleaning and a reservoir chamber. The canister-cleaning chamber holds the suction canister to be treated. The reservoir chamber is fluidly connected to the canister-cleaning chamber and to a water source. The reservoir chamber adapted to be raised and lowered relative to the canister-cleaning chamber to permit cleaning fluids to flow to and from the canister cleaning-chamber.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: December 31, 2002
    Assignee: Allegiance Corporation
    Inventor: David K. Jeng
  • Patent number: 6488665
    Abstract: The present invention provides antimicrobial skin-preparation delivery systems useable to disinfect a surgical site for surgery. The delivery systems include an antimicrobial alcohol gel formulation contained within a sealed, flexible container and a gel formulation dispenser connected to the container. The gel formulation dispenser includes a container connector connected to the flexible container and a gel applicator having a sealed piercing member which is slidably engaged with the container connector. An applicator pad is porous and also has enlarged holes for passage of the gel formulation. The gel formulation dispenser pierces a seal in the container and delivers the antimicrobial alcohol gel formulation from the container to the surgical site. Flow rate of the gel formulation is largely controlled by the amount of external pressure of squeezing a user applied to the flexible container. The antimicrobial skin-preparation formula includes iodine, alcohol and gel.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: December 3, 2002
    Assignee: Allegiance Corporation
    Inventors: Jane E. Severin, David K. Jeng, Bruce H. Wilson, David A. Childers
  • Publication number: 20020096193
    Abstract: The present invention provides an apparatus and method for treatment of waste from suction canisters. The waste treatment system includes a canister-cleaning and a reservoir chamber. The canister-cleaning chamber holds the suction canister to be treated. The reservoir chamber is fluidly connected to the canister-cleaning chamber and to a water source. The reservoir chamber adapted to be raised and lowered relative to the canister-cleaning chamber to permit cleaning fluids to flow to and from the canister cleaning-chamber.
    Type: Application
    Filed: January 24, 2001
    Publication date: July 25, 2002
    Inventor: David K. Jeng
  • Patent number: 6228354
    Abstract: A water-resistant, film-forming topical antimicrobial composition, removable by high pH solution, made in accordance with the principles of the present invention includes a polyvinyl lactam, a broad spectrum antimicrobial agent, a copolymer of polyacrylate/polyoctylacrylamide, a pH sensitive acrylic polymer, and an alcohol. Preferably, the polyvinyl lactam is polyvinyl pyrrolidone. The preferred broad spectrum antimicrobial agent is iodine which is preferably complexed to the polyvinyl pyrrolidone. A process for making the film-forming topical antimicrobial composition is also provided.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: May 8, 2001
    Assignee: Allegiance Corporation
    Inventor: David K. Jeng
  • Patent number: 5916882
    Abstract: The present invention provides antimicrobial skin-preparations useable to disinfect a surgical site for surgery. The antimicrobial skin-preparation formula includes iodine, alcohol and gel. The new pre-operative skin-preparation quickly and effectively kills microorganisms when applied to the surgical site. The skin-preparation continues to effectively inhibit microorganism growth in the applied area over an extended period of time. One gel skin-preparation according to the invention includes alcohol at 60%-90% v/v, iodine at 1.0%-15.0% w/v, and gel at 0.1%-30.0% w/v. A carrier solvent and other optional components may also be added to the formula.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: June 29, 1999
    Assignee: Allegiance Corporation
    Inventor: David K. Jeng