New PTAB AIA Trial Templates: What Petitioners and Patent Owners Should Know

The Patent Trial and Appeal Board has published new, optional templates for the two briefs that define most America Invents Act patent challenges: the petition and the patent owner’s preliminary response or post-institution response.

The PTAB released the templates and companion guidance on September 11, 2026. They apply to inter partes review (IPR) and post-grant review (PGR) proceedings. The templates do not change the Patent Act, the Board’s rules, or the applicable filing standards. They are not mandatory. Still, they are worth studying because they collect the Board’s current expectations in one place and show how the agency believes a clear AIA trial brief should be organized.

For companies considering a patent challenge—and patent owners preparing to defend one—the practical message is simple: structure cannot rescue a weak case, but poor structure can obscure a strong one.

What the PTAB released

The new resource package includes a Microsoft Word template for an AIA trial petition, a separate template for a patent owner’s preliminary response or response, detailed guidance for each template, and a glossary of commonly used terms. The USPTO describes all of them as optional resources.

The distinction matters. A party does not satisfy the governing law merely by completing every heading in a form. An IPR petition still must comply with 35 U.S.C. §§ 311–319 and the applicable rules in 37 C.F.R. Part 42. A PGR petition remains subject to 35 U.S.C. §§ 321–329 and its corresponding rules. The Board’s Trial Practice Guide and precedential decisions also remain important.

In other words, the templates are a map, not a substitute for strategy. They can help identify missing sections, but they cannot decide which claims to challenge, which grounds to advance, how to prove that a reference qualifies as prior art, or how to answer the other side’s technical evidence.

The petition guidance favors precision over volume

The most useful parts of the petition guidance concern how the asserted grounds should be presented. The PTAB recommends a concise table correlating each challenged claim with the statutory basis and the references or other grounds relied upon. It also emphasizes that every challenged claim and every element should be addressed without ambiguity.

That advice tracks a critical feature of AIA trials: the petition establishes the framework for the proceeding. A petitioner ordinarily cannot wait for the reply to supply a new ground or an argument that could have been presented at the outset. The initial filing therefore must do more than assemble citations. It must explain with particularity why the identified evidence proves the asserted ground.

The guidance specifically warns against ambiguity, excessive grounds, “and/or” combinations, and poorly delineated alternatives. It suggests that parties consider presenting their strongest arguments first—or exclusively—because weaker theories may distract from stronger ones. That is a notable strategic signal. A longer petition is not automatically a better petition, even when it remains within the applicable word limit.

Claim charts may help, but the Board says they are not required and should not replace the necessary explanation. A chart that maps claim language to isolated quotations without explaining the reference, the technical relationship, or the legal theory can leave the decision-maker to assemble the case. The guidance discourages that approach.

Claim construction positions should be deliberate and consistent

The petition guidance also focuses on claim construction. A petitioner must state how the challenged claims should be construed and must identify corresponding structure, material, or acts for means-plus-function or step-plus-function limitations under 35 U.S.C. § 112(f).

If an express construction is needed, the petition should identify it and provide support. If the petitioner says no express construction is required, the rest of the brief should not quietly depend on an unstated interpretation. The PTAB also says a petitioner should explain claim-construction positions that differ from positions taken on the same terms in district court or another proceeding.

That point is especially important when an IPR accompanies patent litigation. The Board and the district court may address overlapping claim language on different schedules, and an expedient interpretation in one forum can create credibility or consistency problems in the other. Coordinating the PTAB and litigation records should begin before the petition is filed.

Patent owners have two different advocacy opportunities

The patent owner guidance covers both the preliminary response filed before institution and the response filed after institution. Although the briefs may overlap, they serve different procedural moments.

A preliminary response may be filed within three months after the Notice of Filing Date Accorded to Petitioner. Its immediate purpose is to explain why the Board should not institute trial. If institution occurs, the patent owner may file a response addressing the petition and the institution decision.

The guidance cautions that an argument raised in the preliminary response but omitted from the post-institution response generally may be treated as waived. Patent owners therefore need a continuity plan. The preliminary response should be designed for the institution stage, while the later response should deliberately preserve and develop the arguments that remain important for the final written decision.

The template also separates procedural objections from the merits. For example, a statutory time-bar argument may be raised as a procedural basis for denying institution. The guidance says such an issue is best raised as soon as the patent owner becomes aware of it. By contrast, current USPTO procedures require discretionary-denial issues to be handled separately from the petition and preliminary response. Using the template without checking current procedures could therefore misroute an important argument.

The same advocacy lesson appears on both sides

For patent owners, the Board again recommends concise, well-organized arguments supported by readily identifiable evidence. Separate headings should identify distinct merits arguments. Claims are best addressed individually when their differences matter, and internal cross-references should point to the specific earlier argument rather than forcing the Board to search for it.

The guidance also reminds patent owners that arguments cannot be incorporated by reference from another document. Expert declarations and exhibits can support a response, but the brief itself must present the argument. Where obviousness is disputed, objective evidence such as commercial success, industry praise, or a long-felt but unmet need may be relevant, provided the evidence and the required connection to the claimed invention are established.

These details reinforce a broader point familiar to parties in inter partes review: an AIA trial is not simply a condensed district-court case. It has its own pleading architecture, evidentiary expectations, page and word limits, and waiver risks.

Exhibit handling is part of persuasive presentation

Both guidance documents devote meaningful attention to exhibits. Evidence submitted as a PDF should ordinarily be searchable, with optical character recognition or equivalent machine-readable text. Exhibits should have short, descriptive names in P-TACTS, and citations should identify the exhibit and pinpoint the relevant material.

This may sound administrative, but it affects usability. A record containing technically strong evidence can still be difficult to evaluate when files have generic names, page numbering is inconsistent, or cited passages cannot be searched. The templates encourage parties to treat the electronic record as part of the advocacy rather than an afterthought.

They also address confidential material. A party filing confidential evidence should evaluate whether a motion to seal and proposed protective order are required; the Board does not automatically enter a protective order merely because a document is marked confidential.

How businesses should use the new templates

A company evaluating an IPR or PGR should use the templates early, before the legal and technical theories harden. For a potential petitioner, the petition structure can serve as a stress test: Can each challenged claim be tied to a clearly defined ground? Is every element supported by an admissible, properly explained reference? Are priority, real-party-in-interest, time-bar, and claim-construction issues resolved? Does the expert declaration support the brief rather than replace it?

For a patent owner, the response structure can organize an early vulnerability review. Counsel can identify procedural defenses, decide which claim constructions require an express position, test the petitioner’s element-by-element showing, and locate evidence that may rebut obviousness. That work may influence not only the preliminary response but also settlement, parallel litigation, and portfolio strategy.

Tucker Law’s PTAB practice addresses challenges from both perspectives. Businesses that expect a validity dispute should also coordinate post-grant strategy with the broader patent portfolio, licensing obligations, and any pending court case.

The takeaway

The PTAB’s new AIA trial templates are optional, but they are more than blank forms. Their companion guidance captures the Board’s emphasis on particularity, consistency, disciplined issue selection, and an accessible evidentiary record.

Petitioners should not mistake comprehensiveness for persuasion. Patent owners should not assume an argument survives merely because it appeared before institution. Both sides should use the templates as a quality-control framework while continuing to analyze the governing statutes, rules, Trial Practice Guide, and current Board precedent.

If your company is considering a patent challenge or has received notice of an IPR or PGR petition, contact Tucker Law promptly. The early decisions about grounds, claim construction, evidence, and procedural defenses can shape the entire proceeding.

This article provides general information and is not legal advice for any particular matter.