USPC Class Details

Description: 44 fuel and related compositions / 44 fuel and related compositions/(300) liquid fuels (excluding fuels that are exclusively mixtures of liquid hydrocarbons) (354) aluminum or heavy metal, other than lead, containing (358) organic compound containing the heavy metal or aluminum (361) five-membered, unsaturated carbocycle bonded directly to the heavy metal or aluminum (e.g., ferrocene, etc.)

Hierarchy/Derived subclasses

44 / 300

-> 354

-> 358

-> 361

uspto searches

Patent Apps in 44/361

Granted Patents in 44/361

Use the links above or do an advanced search in ppubs for:
(44/361.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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