Patents by Inventor David Nahmad

David Nahmad 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).

  • Devices and methods for essential oils, terpenes, flavonoids, and hydrosols extraction
    Patent number: 11813549
    Abstract: Devices, systems, and methods are presented that employ high-surface gaseous solvent extraction of terpenoids, essential oil, and/or flavonoids from a liquid raw material at controlled temperature and pressure conditions. In some embodiments, the extraction is based on a rotary or falling film evaporator in which a steam jet is directed at a heated liquid film of raw material at elevated temperatures and reduced pressure.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: November 14, 2023
    Assignee: Eco-Logic Environmental Engineering Inc.
    Inventor: David Nahmad
  • Process for hydrometallurgical treatment of electric arc furnace dust
    Publication number: 20070041883
    Abstract: A process for treating electric arc furnace dust to recover lead, zinc, iron and precious metals by washing the dust, solubilizing and electrowinning some metals, and extracting other metals from the solids left after the solubilizing step.
    Type: Application
    Filed: February 6, 2006
    Publication date: February 22, 2007
    Inventors: Brendan McDevitt, Richard Karkkainen, Eduardo Sacris, David Nahmad, Elizabeth Sendil