Canadian Subclass Details

Description: 253 / (1) Lubricants (13) Inorganic (22) Sulphur, Selenium or Tellurium Containing (23) Molybdenum, Tungsten, Titanium, Zirconium

Hierarchy/Derived subclasses

253 / 1

-> 13

-> 22

-> 23

CIPO search

search just 253/23

This will show what classes derive from the input. Ex: entering 78/35 shows the derived classes and the search that can be used to find patents in those subclasses.

Display:

Back