• 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 9/04 - Layered products essentially comprising a particular substance not covered by groups comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance

Patent holdings for IPC class B32B 9/04

Total number of patents in this class: 2139

10-year publication summary

Principal owners for this class