Contact Us Main CPC Sections USPC Class Numbers & Titles USPC Class Numbers Classification Search Page Contacts Help Printable version [PDF] B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORMDefinition statement This subclass covers: Layered products characterised by the structure or materials of the layers, including products formed from