In re Youman: When a Broadened Reissue Claim Avoids Recapture

Reissue lets a patent owner broaden claims within two years of grant. That raises an obvious question: can the owner use reissue to take back claim scope it gave up to get the patent allowed? The answer is generally no. The recapture rule prevents a reissue from regaining subject matter that was deliberately surrendered during prosecution.

The rule is short to state but difficult to apply. In re Youman (Fed. Cir. 2012) is one of the cases that clarified how much a narrowing limitation can be changed in reissue before the claim recaptures what was given up.

Why the recapture rule exists

Section 251 permits reissue to correct an “error.” When an applicant narrows a claim to overcome a prior art rejection, that narrowing is a deliberate choice, not an error. The public is entitled to rely on the surrender reflected in the prosecution history. Allowing the patentee to reclaim the same scope later would undermine that reliance.

The rule is therefore an application of the error requirement. It does not stop all broadening; it stops broadening into territory that was given up to obtain the patent.

The three-step analysis

Courts and the USPTO analyze recapture in three steps, an approach traced to In re Clement (Fed. Cir. 1997) and reflected in MPEP § 1412.02:

1. Is the reissue claim broader than the original patent claim in some respect? If not, there is no recapture.
2. Does the broader aspect relate to subject matter surrendered during prosecution? Surrender usually shows up as an amendment or argument made to overcome a prior art rejection.
3. Was the reissue claim materially narrowed in other respects, so that it avoids the recapture rule? A claim broadened in one place may still escape the rule if it is narrowed in a way that relates to the surrendered subject matter.

Most disputes arise at the third step.

What Youman added

In general terms, the patent owner in Youman had narrowed a claim during prosecution to secure allowance. In reissue, the owner did not drop the narrowing limitation entirely, but modified it, so that the reissue claim was broader than the patented claim while still narrower than the claim as it stood before the surrender.

The Federal Circuit held that the third step does not demand that the narrowing limitation be kept verbatim. A reissue claim can avoid recapture if it retains a materially narrowing limitation related to the surrendered subject matter, even if that limitation is modified. The question is whether the reissue claim, viewed as a whole, reclaims the subject matter that was actually surrendered, not whether any word of the original amendment was changed.

The decision kept the core of the rule intact. Eliminating a surrender-generating limitation altogether, or broadening it to the point that it no longer narrows the claim in a material way relative to what was surrendered, still results in impermissible recapture.

Applying the analysis in practice

The following table illustrates, in general terms, how the steps play out:

Reissue claim	Likely result
Narrower than the original claim in all respects	No recapture (fails step 1)
Broader only in an aspect unrelated to prosecution amendments	No recapture (fails step 2)
Drops the limitation added to overcome prior art	Recapture
Modifies that limitation but keeps it materially narrowing relative to the surrendered scope	May avoid recapture after Youman

Patent owners and examiners usually start by mapping the prosecution history: which claims were rejected, what was amended or argued, and what scope those changes gave up. The reissue claim is then compared both with the patented claim and with the cancelled or amended claims.

Related considerations

• Two-year limit. Broadening must be sought within two years of grant under § 251(d), regardless of recapture.
• Intervening rights. A broadened claim that survives the recapture analysis can still be subject to intervening rights under 35 U.S.C. § 252. See intervening rights after Marine Polymer.
• Narrower hedge claims. Adding narrower claims does not raise recapture concerns and was approved as a basis for reissue in In re Tanaka.

For the broader procedure, see the reissue applications guide and reissue procedure, advantages and pitfalls.

Key takeaways

• The recapture rule bars reissue claims from regaining scope surrendered to obtain allowance.
• The analysis asks whether the claim is broader, whether the broadening relates to surrendered subject matter and whether the claim is materially narrowed in other respects.
• In re Youman (Fed. Cir. 2012) held that a narrowing limitation may be modified, not just kept verbatim, and still avoid recapture.
• Removing a surrender-generating limitation entirely still results in recapture.
• MPEP § 1412.02 sets out the Office’s current approach.