• 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 3/22 - 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 of spaced pieces

Patent holdings for IPC class B32B 3/22

Total number of patents in this class: 96

10-year publication summary

Principal owners for this class