Patents by Inventor Douglas P. Hoffmann

Douglas P. Hoffmann 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).

  • HIGH REPELLENCY FILMS VIA MICROTOPOGRAPHY AND POST TREATMENT
    Publication number: 20130052420
    Abstract: A method is provided for making a high repellency material. In one embodiment the method includes the steps of providing a polymeric material having an external surface including particle-like micron-scale topography, etching the external surface with a high energy treatment; and depositing a fluorochemical onto the etched external surface by a plasma fluorination process. The external surface may define a plurality of micro-tears proximate the micron-scale topography.
    Type: Application
    Filed: August 22, 2011
    Publication date: February 28, 2013
    Inventors: Shawn E. Jenkins, Ali Yahiaoui, Roger B. Quincy, III, Douglas P. Hoffmann