In re Gamble — Federal Circuit Affirms Indefiniteness Rejections After Applicant Forfeits His Arguments

Background

Oliver Wendel Gamble sought a patent for a mobile-device messaging system that stores emails and text messages in searchable database records, with editable fields for a user’s notes and grouping tags. The examiner rejected most claims as indefinite under 35 U.S.C. § 112(b), principally because several limitations lacked a sufficient antecedent basis. Gamble amended some claims, but his appeal brief to the Patent Trial and Appeal Board did not offer substantive argument against the remaining indefiniteness rejections.

The PTAB therefore summarily sustained the examiner’s rejection of claims 1–8, 10, 13–15, and 18. It also entered a new indefiniteness ground against the remaining dependent claims because they inherited the same deficiency. Although the Board explained that Gamble could reopen prosecution or seek rehearing on that new ground, his rehearing request focused on arguments he had not presented in his original Board appeal and addressed the newly rejected claims only indirectly.

The Court’s Holding

The Federal Circuit affirmed in a nonprecedential per curiam opinion. It did not resolve whether the claims could have survived a properly preserved challenge on the merits. Instead, it held that Gamble forfeited his substantive indefiniteness arguments at two separate stages.

First, Gamble’s opening brief in the Federal Circuit did not meaningfully contest the § 112(b) rejections; he waited until his reply brief to address their substance. The court applied its settled rule that an appellant cannot save an omitted argument by raising it for the first time in reply. Second, Gamble had already forfeited the same challenge before the PTAB by failing to rebut the examiner’s rejection in his Board appeal brief. The Board consequently had no obligation to decide the unpresented merits.

The court also found no reversible error in the Board’s denial of rehearing on the claims rejected under the Board’s new ground. Gamble’s statement that those dependent claims would no longer be indefinite if his other claims survived did not directly address the new rejection, and it could not cure his failure to preserve the underlying arguments.

Key Takeaways

• A patent applicant must separately and substantively challenge every rejection in the appeal brief to the PTAB; a promise to correct an issue or a later rehearing argument is not enough.
• Arguments omitted from a Federal Circuit opening brief ordinarily are forfeited and cannot be introduced for the first time in a reply brief.
• When the PTAB enters a new ground of rejection, the applicant must use the prescribed reopening or rehearing procedure and directly address that ground.
• The decision affirms on procedural forfeiture, so it does not establish a new substantive test for definiteness under § 112(b).

Why It Matters

In re Gamble is a practical warning that patent appeals can be lost without a merits ruling. Applicants and counsel should map each examiner rejection to a specific argument in the Board appeal brief, then do the same for every issue in the Federal Circuit opening brief. That discipline is especially important when dependent claims inherit defects from an independent claim or when the Board designates an additional ground of rejection.

For businesses pursuing software patents, the case also underscores the need to resolve drafting ambiguities early. But the court’s decision turned on preservation, not on whether the messaging-system language was ultimately definite, so it should not be read as a substantive judgment about similar software claims.