What is the control number format for supplemental examination proceedings?

This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice.

Supplemental examination proceedings are assigned a “series 96” control number. The format for these control numbers is 96/999,999. This unique numbering system helps distinguish supplemental examination proceedings from other types of patent-related proceedings.

The MPEP states: “Supplemental examination proceedings will be assigned a “series 96” control number, such as, for example, 96/999,999.” (MPEP 2806)

It’s important to note that if an ex parte reexamination results from a concluded supplemental examination proceeding, it will retain the same control number as the original supplemental examination. This is done to simplify tracking and processing, even though the two proceedings are separate and distinct.