Patents by Inventor Darren William Mark

Darren William Mark 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).

  • Ergonomic chair
    Patent number: 10021983
    Abstract: A chair having a contoured seat cushion mounted on top of an exercise ball with four tension-adjustable elastic cords such as bungee cords is provided. The shock absorbing cords may attach to the underside of the seat cushion by looping through spring-eye carabiner type hooks, and may pass through grooved locking tubes with v-channels for adjusting the cord tension. The ball may sit on top of a swivel plate, so that dynamic motion and counterbalancing are attainable for a variety of ergonomically beneficial seating styles.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: July 17, 2018
    Inventor: Darren William Mark
  • Ergonomic Chair
    Publication number: 20160345741
    Abstract: A chair having a contoured seat cushion mounted on top of an exercise ball with four tension-adjustable elastic cords such as bungee cords is provided. The shock absorbing cords may attach to the underside of the seat cushion by looping through spring-eye carabiner type hooks, and may pass through grooved locking tubes with v-channels for adjusting the cord tension. The ball may sit on top of a swivel plate, so that dynamic motion and counterbalancing are attainable for a variety of ergonomically beneficial seating styles.
    Type: Application
    Filed: May 20, 2016
    Publication date: December 1, 2016
    Inventor: Darren William Mark