SANTA ANA, Calif. — Pipe Restoration Technologies LLC (PRT) announced that it has been awarded Patent No. 8033242 by the U.S. Patent and Trademark Office (USPTO) for enhancements to the ePIPE® in-place pipe restoration and internal leak sealing system.

This patent is focused on enhancements to the ePIPE technology that provides for an internal barrier coating and leak sealing process applied internally in pipes while the pipes remain in-place, preventing leaks without having to use conventional repair and repiping methods. This patent covers pipes used to carry potable water, natural gas, fire sprinkler systems, and drains.

In the United States, Pipe Restoration Technologies licenses ePIPE technology through ACE DuraFlo Systems LLC.

The ePIPE process, covered by multiple patents, involves restoring pipes in-place, with an application of an epoxy barrier coating resulting in a restored epoxy lined piping system. Service providers are located in the U.S., Canada, Mexico, and Europe. For more information, visit

Publication date: 10/31/2011