Patents by Inventor Leonard Keller

Leonard Keller 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).

  • Device and containers for emitting volatile compositions
    Publication number: 20070048173
    Abstract: In one embodiment, the invention is directed to a device that includes a holding mechanism for substantially concurrently and releasably retaining two containers. In one embodiment, the invention is directed to a first container having a first volatile composition and a second container having a second volatile composition where the first and the second containers are operably connected to each other to form a cartridge. In one embodiment, the invention is directed to a method of emitting a first and a second volatile composition.
    Type: Application
    Filed: August 31, 2005
    Publication date: March 1, 2007
    Inventors: Leonard Keller, Michael Farrell, Gary Groznik, Dean McCoy
  • Cleaning implement
    Publication number: 20050011536
    Abstract: The present invention provides a cleaning implement for cleaning a hard surface. The cleaning implement has a handle which is connected to a mop head via a universal joint. The cleaning implement also has a cleaning tool which is removably connected to the mop head. The cleaning implement has a locking mechanism for temporarily preventing the rotation of the mop head relative to the handle.
    Type: Application
    Filed: March 10, 2004
    Publication date: January 20, 2005
    Inventors: Paulus Hofte, Johannes Lambertus Mensink, Leonard Keller