• All sections
• B - Performing operations; transporting
• B32B - Layered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form
• B32B 3/18 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an internal layer formed of separate pieces of material

Patent holdings for IPC class B32B 3/18

Total number of patents in this class: 484

10-year publication summary

Principal owners for this class