Request for Continued Examination: What It Is and When to Use It

When the USPTO issues a final rejection, most applicants assume the door is closing. It isn't — not yet. A Request for Continued Examination, almost always called an RCE, is a procedural tool that reopens prosecution after a final rejection or after allowance, giving you another round to negotiate your claims with the examiner. Understanding how an RCE works, what it costs you, and when it makes sense is essential for anyone steering an application through prosecution.

What an RCE Actually Does

Filing an RCE does not restart your application from scratch. It continues prosecution of the same application, on the same filing date, with the same specification. What it does is reopen the examiner's docket — the examiner must now review whatever new submission you file and issue a new office action or allow the claims.

You file an RCE by submitting: - A transmittal form (USPTO Form PTO/SB/30) - The required fee - A submission — which must include something new, such as an amendment to the claims, new arguments, new evidence, or a combination of these

If you file the form and fee without a substantive submission, the USPTO will not accept it. The submission requirement is real, not a formality.

When the Door Closes Without an RCE

A final rejection does not immediately end prosecution, but it does narrow your options sharply. After a final rejection, you can:

• File a response with amendments, but the examiner has discretion to refuse entry if the amendment raises new issues
• File a Notice of Appeal to the Patent Trial and Appeal Board (PTAB)
• File an RCE
• Abandon the application

The statutory deadline to file an RCE after a final rejection is the same as for any other response: generally six months from the mailing date of the final office action, subject to the same extension-of-time rules. Missing that deadline means abandonment.

You can also file an RCE after a notice of allowance — for example, if you want to add claims or submit late-breaking prior art before the patent issues. This is less common but sometimes strategically useful.

The RCE Is Not an Appeal

This distinction matters. An appeal to PTAB challenges the examiner's legal conclusions — it asks a panel of judges to review whether the rejection was correct. An RCE goes back to the examiner. You are not arguing that the examiner was wrong; you are giving the examiner new material to consider and another opportunity to allow the claims. If the problem is that your claims are legally sound but the examiner keeps misreading your arguments, an appeal may be the better tool. If the problem is that you need to adjust claim scope or present new evidence, an RCE is often more efficient.

What Filing an RCE Costs You

The filing fee for an RCE is set by USPTO fee schedule and varies by entity size — large entity, small entity, and micro entity rates differ. Check the current fee schedule at USPTO.gov; fees are adjusted periodically.

Beyond the fee, there are two practical costs worth understanding:

Time. Filing an RCE resets your place in the examiner's queue. Depending on the art unit and the examiner's workload, this can add a year or more to prosecution. If speed to grant matters — for investor conversations, for marking products, for licensing — that delay has real business consequences.

Prosecution history. Everything you argue in an RCE becomes part of the prosecution history and can be used against you later in litigation or licensing disputes under the doctrine of prosecution history estoppel. Amendments that narrow claims to get past a rejection can limit how broadly those claims are interpreted in court. This is not a reason to avoid an RCE, but it is a reason to be deliberate about what you argue and how you argue it.

How Many RCEs Can You File?

There is no statutory limit on the number of RCEs you can file on a single application. In practice, filing multiple RCEs on the same claims with the same arguments rarely moves an application forward. If prosecution is genuinely stalled after one or two RCEs, a continuation application, an appeal, or a rethinking of claim strategy is usually the more productive path.

Practical Takeaways

• An RCE reopens prosecution after a final rejection; it does not restart your application or reset your priority date
• Every RCE requires a substantive submission — an amendment, new arguments, or new evidence — not just the fee
• Filing an RCE delays grant; if time to patent matters for your business, weigh that cost before filing
• An RCE goes back to the examiner; an appeal goes to PTAB — choose based on whether you need new arguments or a legal ruling
• Arguments and amendments made in an RCE become permanent prosecution history and can limit claim scope in litigation
• If prosecution is stuck after multiple RCEs, consider a continuation application or appeal rather than repeating the same cycle

This guide is general education, not legal advice, and does not create an attorney–client relationship. For your specific situation, talk to a registered patent attorney.