Koppers Holdings

Filed a patent for "methods for determining a source of wood products, wood preservative compositions, wood products, and methods of treating wood substrates" on Fri, August 11, 2023

Filed a patent for "packaging for wood preservative biocides" on Thu, June 22, 2023

Filed a patent for "methods of manufacture of biocidal compositions, articles for storing biocidal compositions, wood preservative solutions, and wood products produced therefrom" on Fri, September 1, 2023

Filed a patent for "method for manufacturing an aqueous fire retardant composition, an aqueous fire retardant composition, a method for treating wood substrate therewith, and a wood product produced therefrom" on Fri, April 28, 2023

Filed a patent for "method for manufacturing an aqueous fire retardant composition, an aqueous fire retardant composition, a method for treating a wood substrate therewith, and a wood product produced therefrom" on Thu, October 31, 2024

Filed a patent for "method for producing copper carboxylate, a wood preservative composition comprising copper carboxylate, and a wood product produced therefrom" on Thu, October 20, 2022

Filed a patent for "dispersion of coal tar pitch for coating graphitic materials and use in li-ion battery electrode production" on Thu, March 16, 2023

Filed a patent for "end post gap fill assembly" on Thu, April 13, 2023

Filed a patent for "rail brace assembly" on Mon, November 21, 2022

Filed a patent for "rail brace assembly" on Fri, January 27, 2023

Filed a patent for "heat treatment product by process for increased pitch yields" on Thu, August 31, 2023

Filed a patent for "rail brace assembly" on Thu, May 23, 2024