Patents by Inventor Chris French

Chris French 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).

  • MICROEMULSION GERMICIDAL COMPOSITION
    Publication number: 20100068237
    Abstract: A germicidal composition comprising an aromatic dialdehyde; a medium chain linear alcohol; a surfactant; at least one enhancer selected from the group consisting of a halide salt, a carbonate and a carboxylate salt; and water, wherein the germicidal composition is a microemulsion.
    Type: Application
    Filed: October 30, 2009
    Publication date: March 18, 2010
    Inventors: Qiang Li, Chris French, Charles Roberts
  • Methods and devices for testing germicide activity
    Patent number: 7492457
    Abstract: A handheld device provides for measuring the concentration of dialdehyde in a dialdehyde solution. The device comprises (a) an optically transparent first container being under vacuum whereby to draw in a first predetermined quantity of the dialdehyde solution; (b) a first light source positioned to transmit light in the range of 420 nm to 620 nm through the optically transparent first container; (c) a first sensor positioned to receive the transmitted light, wherein the first sensor is configured to measure an optical absorbance of the transmitted light and configured to transmit an electronic signal proportional to the optical absorbance; and (d) a microprocessor in electronic communication with the first sensor, wherein the microprocessor is configured to indicate the concentration of the dialdehyde in the dialdehyde solution based on the electronic signal received from the first sensor.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: February 17, 2009
    Assignee: Ethicon, Inc.
    Inventors: Chris French, Yvonne Tran
  • METHODS AND DEVICES FOR TESTING GERMICIDE ACTIVITY
    Publication number: 20080117422
    Abstract: A handheld device provides for measuring the concentration of dialdehyde in a dialdehyde solution. The device comprises (a) an optically transparent first container being under vacuum whereby to draw in a first predetermined quantity of the dialdehyde solution; (b) a first light source positioned to transmit light in the range of 420 nm to 620 nm through the optically transparent first container; (c) a first sensor positioned to receive the transmitted light, wherein the first sensor is configured to measure an optical absorbance of the transmitted light and configured to transmit an electronic signal proportional to the optical absorbance; and (d) a microprocessor in electronic communication with the first sensor, wherein the microprocessor is configured to indicate the concentration of the dialdehyde in the dialdehyde solution based on the electronic signal received from the first sensor.
    Type: Application
    Filed: October 31, 2007
    Publication date: May 22, 2008
    Applicant: Institut National da la Sante et de la Recherche
    Inventors: Chris French, Yvonne Tran