Patents by Inventor Efrem Lee

Efrem Lee 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).

  • Aroma-dispensing HVAC filter
    Patent number: 10143953
    Abstract: The aroma-dispensing HVAC filter is a scented air filter capable of diffusing a pleasant odor throughout a building. The filter media is enclosed in an easily-opened, protective holder.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: December 4, 2018
    Inventors: Efrem Lee, Penelope Lee