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Founded in 2007, ROTBLOC LLC was founded by Kenneth Carhart. He invented and designed ROTBLOC products gleaned from his 18 years of experience with agricultural wood products, BA in Landscape Architecture and extended work with Oregon State University. ROTBLOC's design objective was to improve the service-life of treated posts and poles without the use of stronger and harsher chemicals. He worked with Oregon State University on the products development. All of our products are made in the USA from 100% recycled material. All products are solely designed and manufactured in-house 100% by our employees in-house in Bend, Oregon. ROTBLOC products are patented and protected by #8887452.