Patents by Inventor Thomas Greenwald

Thomas Greenwald 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).

  • Swimming pool filtrations system debris guard
    Patent number: 10443257
    Abstract: A swimming pool or spa filtration system debris guard for preventing debris on the water surface from entering the opening of the filtration system. The debris guard having a screen for collection of debris, with and a flexible securing clip to secure the screen in front of a swimming pool skimmer opening.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: October 15, 2019
    Inventor: Thomas Greenwald
  • Swimming Pool Filtrations System Debris Guard
    Publication number: 20180179771
    Abstract: A swimming pool or spa filtration system debris guard for preventing debris on the water surface from entering the opening of the filtration system. The debris guard having a screen for collection of debris, with and a flexible securing clip to secure the screen in front of a swimming pool skimmer opening.
    Type: Application
    Filed: February 22, 2018
    Publication date: June 28, 2018
    Inventor: Thomas Greenwald
  • Swimming pool filtrations system debris guard
    Patent number: 9932747
    Abstract: A swimming pool or spa filtration system debris guard for preventing debris on the water surface from entering the opening of the filtration system. The debris guard having a screen and a detachable net assembly positioned substantially perpendicularly to the screen for collection of debris, with a spring activated post to secure the screen within or in front of a swimming pool skimmer opening.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: April 3, 2018
    Inventor: Thomas Greenwald
  • Swimming Pool Filtrations System Debris Guard
    Publication number: 20160251866
    Abstract: A swimming pool or spa filtration system debris guard for preventing debris on the water surface from entering the opening of the filtration system. The debris guard having a screen and a detachable net assembly positioned substantially perpendicularly to the screen for collection of debris, with a spring activated post to secure the screen within or in front of a swimming pool skimmer opening.
    Type: Application
    Filed: March 11, 2016
    Publication date: September 1, 2016
    Inventor: Thomas Greenwald