Searching for patents with a Director-initiated Order for Reexamination
I'm working on a research project about Director Initiated Orders for Reexamination, and we're trying to find all the patents that have been ordered to be re-examined. I know there are two document codes for such orders: RXDOR (for director ordered) and CDOR (for commissioner ordered). Is there any way to search for these codes in the USPTO database? They should appear in the image file wrappers for all the patents that have been ordered for re-examination, and there are only 200 or so patents since the 1980s that they've been issued for, but I'm not sure how to go about searching for them.