Patent Prosecution
Request for Continued Examination
An RCE reopens prosecution after a final rejection by paying a continued examination fee — giving the applicant another round with the examiner without the cost or time of a full PTAB appeal.
Critical Warning — C-Delay Rule
Filing an RCE triggers a "C-delay" — the USPTO counts the RCE period as applicant delay and deducts it from Patent Term Adjustment (PTA). All PTA accumulated before the RCE may be forfeited. For high-value applications (pharma, biotech), consider PTAB appeal instead.
RCE vs. PTAB Appeal — Decision Guide
When to File an RCE and When to Appeal
File an RCE when…
- Examiner's prior art is close but claim amendment can overcome it
- New claim language or arguments haven't been tried
- You need copendency for a continuation application
- RCE cost is more manageable than appeal right now
- Issue is factual (whether prior art teaches a limitation), not legal
Appeal to PTAB when…
- Examiner's rejection is legally wrong — prior art doesn't anticipate/render obvious
- Multiple RCEs have been filed without convergence toward allowance
- PTA preservation is important (pharma/biotech with long regulatory timelines)
- Issue is a legal question (claim construction, § 101 eligibility)
- The application has high commercial value justifying appeal cost
FAQ
What is a Request for Continued Examination (RCE)?
A Request for Continued Examination (RCE) is a procedural mechanism under 37 C.F.R. § 1.114 that allows a patent applicant to reopen prosecution of a patent application after it has received a final office action (final rejection) or after a notice of allowance has issued. An RCE is NOT a new application — it continues prosecution of the same application with the same filing date and priority claims. The applicant files an RCE by: (1) Paying the RCE filing fee ($900 small entity / $1,800 large entity for the first RCE; additional fees for subsequent RCEs — second RCE: $1,500/$3,000; third and beyond: $1,500/$3,000); (2) Submitting a submission (a new response to the office action, claim amendments, or a declaration); (3) Filing before the application goes abandoned — within 6 months of the final rejection or advisory action, or within any remaining period of abandonment. EFFECT: prosecution is reopened as if the final rejection was never made; the examiner must issue a new non-final office action on the new submission; an RCE gives the applicant another opportunity to amend claims and argue before the examiner without the time and cost of an appeal to the PTAB.
When should you file an RCE vs. appeal to the PTAB?
RCE and PTAB appeal are the two primary paths after a final office action rejection. Choosing between them involves several considerations: FILE AN RCE WHEN: (1) The examiner's rejection has merit — the prior art cited is close and claim amendment could overcome it; (2) You have new claim language or arguments that haven't been tried and are likely to succeed; (3) You want to add a continuation application and need the parent to remain pending (an RCE keeps the parent pending, maintaining copendency for continuation filings); (4) You recently identified a key piece of prior art and want to file an IDS; (5) You need more time to assess the commercial value of the application before incurring appeal costs; (6) The cost of appeal ($2,500–$10,000+ in attorney fees + PTAB fees) is not justified by the value of the application. APPEAL TO PTAB WHEN: (1) The examiner's rejection is legally incorrect — the prior art doesn't actually anticipate or render obvious the claimed invention; (2) You've already filed an RCE and the rejection persists without substantive change; (3) Multiple RCEs have been filed and continued prosecution is not converging toward allowance; (4) The issue is a legal question (claim construction, claim scope, statutory subject matter) better suited to an administrative law judge; (5) PTA considerations — appeals to PTAB can generate more PTA than RCEs under certain conditions. AVERAGE: applicants file an average of 1–2 RCEs before either allowing the application or appealing.
How does an RCE affect Patent Term Adjustment (PTA)?
RCE has a significant negative impact on Patent Term Adjustment (PTA) — the mechanism that compensates patentees for USPTO delays during prosecution. THE C-DELAY RULE: under 35 U.S.C. § 154(b)(1)(C), any time during which the applicant 'failed to engage in reasonable efforts to conclude prosecution' is deducted from PTA as 'applicant delay.' The USPTO interprets filing an RCE as triggering a C-delay deduction: the period from the RCE filing date through the date the examiner issues the next office action (typically 3–12+ months) is considered 'applicant delay' — even though the applicant is waiting for the examiner to act, not delaying themselves. PRACTICAL IMPACT: if the USPTO issues a final rejection after significant B-delay (USPTO delays from late office actions), the accumulated PTA from those delays is forfeited when the applicant files an RCE; the C-delay clock runs from the RCE filing date; example: an application accumulated 300 days of PTA from USPTO delays before a final rejection; the applicant files an RCE; the next office action takes 400 days to issue; the 300 days of prior PTA is reduced by the C-delay period; the net PTA may be significantly negative relative to the expected PTA before the RCE. ALTERNATIVE TO PRESERVE PTA: appeals to the PTAB can stop (or not trigger) the C-delay clock while the PTAB processes the appeal — a primary reason why high-value applications (especially pharmaceuticals and biotechnology with long regulatory approval timelines) may prefer appeal over RCE.
What must be submitted with an RCE?
An RCE requires both a FILING FEE and a SUBMISSION: FILING FEE: $900 small entity / $1,800 large entity for the first RCE; ~$1,500 small / $3,000 large for subsequent RCEs (second and beyond). Micro entity: 80% reduction from large entity fees. SUBMISSION: the applicant must include at least one of the following: (1) A new response to the outstanding office action (arguments, claim amendments, or both); (2) A new information disclosure statement (IDS) with newly cited prior art; (3) A substitute specification; (4) An oath or declaration; (5) A claim formally appealing the examiner's rejection (to keep prosecution open while deciding next steps). Importantly: the applicant CANNOT simply file an RCE with no substantive submission — an RCE without a submission is defective. If the applicant files an RCE with an after-final amendment that was not entered (because the final rejection was already outstanding), the RCE automatically reopens prosecution and the submission is treated as the response to a new non-final office action. BEST PRACTICE: use the RCE to submit a strategically revised claim set with arguments that specifically address the examiner's rejection grounds; consider whether a narrowed independent claim will be allowable and whether dependent claims preserve the commercial value of the application.
Can you file an RCE after a notice of allowance?
Yes — an RCE can be filed after a notice of allowance (NOA) has been issued, before the issue fee is paid. WHY FILE AN RCE AFTER ALLOWANCE: (1) CORRECTION OF ERRORS — correct a technical error in the claims or specification discovered after the NOA; the examiner cannot make corrections after the issue fee is paid; (2) FILE A CONTINUATION APPLICATION — before the parent issues as a patent, filing an RCE keeps the parent application pending, extending the period in which the applicant can file a continuation claiming the same priority date; (3) SUBMIT NEW PRIOR ART (IDS) — if highly relevant prior art is discovered after the NOA, the applicant may want to bring it to the examiner's attention via an IDS filed with an RCE (rather than simply paying the issue fee while sitting on knowledge of material prior art — which could raise inequitable conduct concerns in litigation); (4) NARROW CLAIMS — if the applicant wants narrower claims (e.g., to avoid a specific prior art reference that recently published), an RCE allows the applicant to narrow and argue the claims before the patent issues. RISK: filing an RCE after a NOA reopens prosecution and eliminates the allowance — the examiner is no longer bound by the NOA and may raise new rejections, including prior art that was not previously cited. ALTERNATIVE TO RCE AFTER ALLOWANCE: an examiner's amendment (authorized by the examiner) can correct minor errors without requiring a full RCE.
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