(Northwest Pipe Co.: Portland, OR) -- Northwest Pipe Co., a leading manufacturer of water-related infrastructure, announced that the U.S. Patent and Trademark Office has issued U.S. Patent No. 12215817 for the InfraShield Joint System (“InfraShield”), an innovative geohazard-resistant steel pipe (GRSP) solution designed to strengthen the resilience of steel pipelines in geologically vulnerable areas without the need for gasketed joints.

Manufactured in the U.S. and backed by rigorous testing, InfraShield enhances pipeline performance of C200 steel pipe by offering a fully welded, easy-to-install system that ensures leak-free reliability while delivering significant cost savings. The system utilizes a strain-based design to enhance the resiliency of lap-welded steel pipe. A small projection is manufactured into the steel pipe wall which effectively absorbs deformation imposed by differential settlement or seismic activity without overstressing the lap-welded joint itself.

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