How is the recording fee calculated for multiple patents or applications?
The recording fee for multiple patents or applications is calculated on a per-item basis. According to MPEP 302.06:
The recording fee set in 37 CFR 1.21(h) is charged for each patent application and patent identified in the required cover sheet except as provided in 37 CFR 3.41(b).
This means that if you are recording a document that affects multiple patents or applications, you will need to pay a separate fee for each one listed on the cover sheet. However, remember that for electronic submissions, the current fee is $0 per item.
To learn more:
Topics:
MPEP 300 - Ownership and Assignment,
Patent Law,
Patent Procedure