USPC Class Details

Description: 65 glass manufacturing / 65 glass manufacturing/(376) processes of manufacturing fibers, filaments, or preforms (385) process of manufacturing optical fibers, waveguides, or preforms thereof (399) incorporating dopant into porous body

Hierarchy/Derived subclasses

65 / 376

-> 385

-> 399

uspto searches

Patent Apps in 65/399

Granted Patents in 65/399

Use the links above or do an advanced search in ppubs for:
(65/399.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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