Patents by Inventor Ralph Frank Louis, Jr.

Ralph Frank Louis, Jr. 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).

  • Portable misting apparatus and method for delivering a mist
    Patent number: 6481642
    Abstract: A portable misting device is charged with gas from a pressurized source. Fluid is discharged from the device through a nozzle coupled to a flexible tube. The fluid stream emitted from the nozzle may be modified by a fan to create a fine spray mist.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: November 19, 2002
    Inventors: Ralph Frank Louis, Jr., Lester F. Goldtein
  • Misting device with circular shaped base
    Patent number: D422051
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: March 28, 2000
    Inventor: Ralph Frank Louis, Jr.
  • Portable misting device
    Patent number: D433112
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: October 31, 2000
    Inventor: Ralph Frank Louis, Jr.