USPC Class Details

Description: 435 chemistry: molecular biology and microbiology / 435 chemistry: molecular biology and microbiology/(41) micro-organism, tissue cell culture or enzyme using process to synthesize a desired chemical compound or composition (52) preparing compound containing a cyclopentanohydrophenanthrene nucleus; nor-, homo-, or d-ring lactone derivatives thereof (54) acting on d-ring (55) acting at 17-position (56) hydroxylating at 17-position

Hierarchy/Derived subclasses

435 / 41-> 52-> 54-> 55-> 56

uspto searches

Patent Apps in 435/56

Granted Patents in 435/56

Use the links above or do an advanced search in ppubs for:
(435/56.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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