Korean inventor Dongkook Jang has filed Patent Application No. 20130225702, which describes a method of recycling expanded polystyrene foam into fire-resistant insulation for use in construction of buildings.
London-based Nextek Ltd. has filed Patent Application No. 20130231407, relating to a process for separating two or more components of a plastic scrap mixture for recycling.
Carpet Processing & Recycling LLC of Tacoma, Washington has filed Patent Application No. 20130231030, which describes devices and methods for disassembling carpet into its component parts for recycling.
Patent No. 8,536,238, describing a process for preparing thermal insulation sheets out of unseparated mixed plastics, has been awarded to Fares Alsewailem of Riyadh, Saudi Arabia.
Spanish organization L'Urederra Fundacion para el Desarrollo Technologico y Social has received Patent No. 8,530,531, describing a method of separating and recycling polyvinyl butyral that had been bonded to laminated glass.
For more information on these or any patents, please consult the U.S. Patent Office database online .
Copies of patents can be ordered by number for $3 each from the Commissioner of Patents and Trademarks, P.O. Box 1450, Alexandria, VA, 22313-1450.