Monier exhibited his invention at the Paris Exposition of 1867. He obtained his first patent on 16 July 1867, on iron-reinforced troughs for horticulture. He continued to find new uses for the material, and obtained more patents — iron-reinforced concrete pipes and basins (1868); iron-reinforced concrete panels for building façades (1869); bridges made of iron-reinforced concrete (1873); reinforced concrete beams (1878). In 1875, the first iron-reinforced concrete bridge ever built was constructed at the Castle of Chazelet. Monier was the designer.