Patents by Inventor David Stoltz

David Stoltz 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).

  • Transgenic pig models of cystic fibrosis
    Patent number: 10004212
    Abstract: This invention relates to transgenic pig models of cystic fibrosis, cells that can be used to make such animals, and methods of making and using these pigs and cells.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: June 26, 2018
    Assignee: University of Iowa Research Foundation
    Inventors: Michael J. Welsh, David Stoltz
  • TRANSGENIC PIG MODELS OF CYSTIC FIBROSIS
    Publication number: 20170258058
    Abstract: This invention relates to transgenic pig models of cystic fibrosis, cells that can be used to make such animals, and methods of making and using these pigs and cells.
    Type: Application
    Filed: April 24, 2017
    Publication date: September 14, 2017
    Inventors: Michael J. WELSH, David STOLTZ
  • Drain cleaning apparatus
    Patent number: 7810203
    Abstract: An improved drain cleaning assembly (10) is provided having a coupling apparatus (18) designed to mate with the open end of a clogged drainpipe (12), an elongated, powered, axially-rotatable drain cable (16) passing through the apparatus (18) and into pipe (12), and water inlet and outlet lines (20, 26) coupled with apparatus (18) for delivery of water therethrough during the course of drain cleaning operations. The apparatus (18) includes a unitary main tubular body (38) receiving a drainpipe connection fitting (46) via quick-connect structure (44). The body (38) also has an internal sponge-type cable cleaning component (94) and a spray fitting (54) for directing incoming water onto cable (16). Preferably, the lines (20, 26) are each equipped with a check valve (21, 28) to control water flow through body (38) during drain unclogging and to facilitate visual verification of an unclogged condition.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: October 12, 2010
    Assignee: Stoltz & Murphy, Inc.
    Inventor: David Stoltz
  • Drain cleaning apparatus
    Publication number: 20080086803
    Abstract: An improved drain cleaning assembly (10) is provided having a coupling apparatus (18) designed to mate with the open end of a clogged drainpipe (12), an elongated, powered, axially-rotatable drain cable (16) passing through the apparatus (18) and into pipe (12), and water inlet and outlet lines (20, 26) coupled with apparatus (18) for delivery of water therethrough during the course of drain cleaning operations. The apparatus (18) includes a unitary main tubular body (38) receiving a drainpipe connection fitting (46) via quick-connect structure (44). The body (38) also has an internal sponge-type cable cleaning component (94) and a spray fitting (54) for directing incoming water onto cable (16). Preferably, the lines (20, 26) are each equipped with a check valve (21, 28) to control water flow through body (38) during drain unclogging and to facilitate visual verification of an unclogged condition.
    Type: Application
    Filed: October 12, 2006
    Publication date: April 17, 2008
    Inventor: David Stoltz