How can someone obtain copies of assignment records for pending or abandoned applications?

The process for obtaining copies of assignment records for pending or abandoned applications depends on whether the application is open to the public. The MPEP states:

‘Copies of assignment records relating to pending or abandoned patent applications which are open to the public pursuant to 37 CFR 1.11 or for which copies or access may be supplied pursuant to 37 CFR 1.14 are available to the public.’

For applications that are not open to the public, the process is more restricted:

‘For pending or abandoned applications which are not open to the public pursuant to 37 CFR 1.11 or for which copies or access may not be supplied pursuant to 37 CFR 1.14, information related thereto is only obtainable upon a proper showing of written authority.’

The required written authority varies depending on the application filing date. For applications filed on or after September 16, 2012, it must come from an inventor, applicant, assignee, patent practitioner of record, or someone with written authority from these parties.