What are the marking requirements for amendments in patent reexamination?

The marking requirements for amendments in patent reexamination are specified in 37 CFR 1.530(f). These requirements ensure clarity in identifying changes made to the patent. The MPEP states:

“(f) Changes shown by markings. Any changes relative to the patent being reexamined which are made to the specification, including the claims, must include the following markings:

1. The matter to be omitted by the reexamination proceeding must be enclosed in brackets; and
2. The matter to be added by the reexamination proceeding must be underlined.”

These markings help examiners and other parties quickly identify the proposed changes to the patent document during the reexamination process.

To learn more:

• patent amendments
• reexamination
• amendment markings
• USPTO procedures