Patents by Inventor Ralf Prax

Ralf Prax 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).

  • Disposable fluid applicator
    Patent number: 8534947
    Abstract: A disposable fluid applicator having a reservoir with a first membrane and a second membrane. Said reservoir containing a fluid to be dispensed. Said first membrane of the reservoir having perforations and being covered by a permeable and/or absorbent spreader. A removable tab assembly is disposed between said spreader and said first membrane of the reservoir that seals said perforations. When the tab is pulled from between said spreader and said first membrane of the reservoir the perforations are unsealed allowing the fluid contained inside the reservoir to flow out through the perforations into and through the spreader where the fluid can be applied to a desired surface.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: September 17, 2013
    Inventor: Ralf Prax
  • Disposable fluid applicator
    Patent number: 8157464
    Abstract: A disposable fluid applicator having a reservoir with a first membrane and a second membrane. Said reservoir containing a fluid to be dispensed. Said first membrane of the reservoir having perforations and being covered by a permeable and/or absorbent spreader. A removable tab assembly is disposed between said spreader and said first membrane of the reservoir that seals said reservoir. When the tab is pulled from between said spreader and said first membrane of the reservoir the reservoir becomes unsealed allowing the fluid contained inside the reservoir to flow out through an opening in the first membrane into and through the spreader where the fluid can be applied to a desired surface.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: April 17, 2012
    Inventor: Ralf Prax
  • Disposable Fluid Applicator
    Publication number: 20100239353
    Abstract: A disposable fluid applicator having a reservoir with a first membrane and a second membrane. Said reservoir containing a fluid to be dispensed. Said first membrane of the reservoir having perforations and being covered by a permeable and/or absorbent spreader. A removable tab assembly is disposed between said spreader and said first membrane of the reservoir that seals said reservoir. When the tab is pulled from between said spreader and said first membrane of the reservoir the reservoir becomes unsealed allowing the fluid contained inside the reservoir to flow out through an opening in the first membrane into and through the spreader where the fluid can be applied to a desired surface.
    Type: Application
    Filed: June 8, 2010
    Publication date: September 23, 2010
    Inventor: Ralf Prax
  • Disposable Fluid Applicator
    Publication number: 20100074671
    Abstract: A disposable fluid applicator having a reservoir with a first membrane and a second membrane. Said reservoir containing a fluid to be dispensed. Said first membrane of the reservoir having perforations and being covered by a permeable and/or absorbent spreader. A removable tab assembly is disposed between said spreader and said first membrane of the reservoir that seals said perforations. When the tab is pulled from between said spreader and said first membrane of the reservoir the perforations are unsealed allowing the fluid contained inside the reservoir to flow out through the perforations into and through the spreader where the fluid can be applied to a desired surface.
    Type: Application
    Filed: September 25, 2008
    Publication date: March 25, 2010
    Inventor: Ralf Prax