USPC Class Details

Description: 44 fuel and related compositions / 44 fuel and related compositions/(250) flameless or glowless (251) activatable by or containing water (252) free metal-containing (253) with organic or second elemental material

Hierarchy/Derived subclasses

44 / 250

-> 251

-> 252

-> 253

uspto searches

Patent Apps in 44/253

Granted Patents in 44/253

Use the links above or do an advanced search in ppubs for:
(44/253.ccls.)

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.

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