Patents by Inventor Marcus Christos Spero

Marcus Christos Spero 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).

  • Loudspeaker, loudspeaker driver and loudspeaker design process
    Patent number: 10231049
    Abstract: The invention relates in general to the field of high fidelity audio reproduction and to the design process and selection of a sealed loudspeaker for the home and audiophile markets. The sealed loudspeaker has at least one professional sound reinforcement driver, a crossover network, a sealed enclosure, and the enclosure volume is less than 300 liters. The at least one professional sound reinforcement driver has a small compliance volume (Vas) or a large system compliance ratio (?) for a total system quality of between 0.5 and 1.0.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: March 12, 2019
    Inventor: Marcus Christos Spero
  • LOUDSPEAKER, LOUDSPEAKER DRIVER AND LOUDSPEAKER DESIGN PROCESS
    Publication number: 20180146281
    Abstract: The invention relates in general to in general to the field of high fidelity audio reproduction and to the design process and selection of a sealed loudspeaker for the home and audiophile markets. The sealed loudspeaker has at least one professional sound reinforcement driver, a crossover network, a sealed enclosure, and the enclosure volume is less than 400 liters. The at least one professional sound reinforcement driver has a small compliance volume (Vas) or a large system compliance ratio (?) for a total system quality of between 0.5 and 1.0.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 24, 2018
    Inventor: Marcus Christos Spero