Patents by Inventor John Langkamp

John Langkamp 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).

  • THREADED PIPE HAVING PROTECTIVE COATING
    Publication number: 20150300536
    Abstract: Coated threaded pipe and methods for manufacturing same. The coating may be fusion bonded epoxy coating. Threaded end portions of the pipes are protected from fouling and damage. The coating is applied to intermediate portions of the pipes between the threaded end portions. Connectors may be used for connecting ends of adjacent pipes in a continuous coating process and protecting the threaded end portions.
    Type: Application
    Filed: April 17, 2015
    Publication date: October 22, 2015
    Inventors: Randy Zilli, Don Bjorkman, John Langkamp, Kael Crichton