What are the differences in assignee rights for applications filed before and after September 16, 2012?

The MPEP 106.01 highlights a key difference in assignee rights for patent applications filed before and after September 16, 2012: For applications filed before September 16, 2012: The assignee of record of the entire interest can intervene in the prosecution of an application or interference to the exclusion of the applicant. For applications filed on…

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