Patents by Inventor Nathan J. Sonnenfeld

Nathan J. Sonnenfeld 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).

  • Methods, systems and apparatuses for loading and unloading freight from railcars
    Patent number: 10287114
    Abstract: The invention described herein provides methods, systems and apparatuses for loading and unloading freight from railcars and methods for intermodal transportation of freight on railcars. The freight may be a shipping container or a semi-trailer. The system for loading and unloading freight on railcars includes a sled capable of moving laterally between a loading location and a railcar.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: May 14, 2019
    Inventor: Nathan J. Sonnenfeld
  • Methods, Systems and Apparatuses for Loading and Unloading Freight from Railcars
    Publication number: 20140212251
    Abstract: The invention described herein provides methods, systems and apparatuses for loading and unloading freight from railcars and methods for intermodal transportation of freight on railcars. The freight may be a shipping container or a semi-trailer. The system for loading and unloading freight on railcars includes a sled capable of moving laterally between a loading location and a railcar.
    Type: Application
    Filed: January 29, 2014
    Publication date: July 31, 2014
    Inventor: Nathan J. Sonnenfeld