Patents by Inventor Johannes Alexander Paulus Paul

Johannes Alexander Paulus Paul 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).

  • Respiratory Protection Device
    Publication number: 20090151728
    Abstract: A respiratory protection device comprises a housing (1) defining a chamber within the housing. The chamber is open in a region which in use is adapted to be nearest to a user. A porous element (3) is located within the chamber and a communicating member (5) communicates with the porous element (3) within the chamber.
    Type: Application
    Filed: October 4, 2006
    Publication date: June 18, 2009
    Inventors: Alison Kay McConnell, Johannes Alexander Paulus Paul, Owen James Warren Evans