The rise of PTAB discretionary denial is changing how companies protect their intellectual property. Today, the PTAB denial rate has reached 72%, especially in cases with parallel district court litigation. Because of this, companies are now changing their patent defense strategy. A big part of this shift is the growing focus on IPR vs EPR.
Apr 10, 2026
Peach State Tech
Tech Company
What Is PTAB Discretionary Denial?
PTAB (Patent Trial and Appeal Board) discretionary denial happens when the patent office refuses to review a case. This can happen even if the unpatentability challenge is strong. The board uses the director’s discretion to decide if they should spend time and resources reviewing these challenged patents.
The decision depends on several discretionary factors, such as:
Ongoing district court proceedings
The scheduled trial date
The age of the patent
The strength of the unpatentability challenge
These are part of the discretionary denial framework used by the United States patent system.
Why Is the PTAB Denial Rate So High?
The rising PTAB denial rate is linked to changes in how the trademark office manages cases.
Key reasons include:
Increased PTAB workload management
Focus on the appropriate use of office resources
Avoiding overlap with district court cases
This overlap is often judged using the Fintiv factors, which look closely at whether early trial dates in a district court make a PTAB review unnecessary. There are also new interim processes and a new bifurcated process that affect how AIA proceedings are handled.
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Peach State Tech
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Recent updates from leadership, including Acting Director Coke Morgan Stewart, have introduced a new discretionary denial framework. This framework changes how discretionary denial arguments are reviewed.
IPR vs EPR: What’s the Better Option Today?
The debate around IPR vs EPR is now more important than ever.
Inter Partes Review (IPR)
Part of PTAB proceedings
Can be blocked by discretionary grounds
Affected by parallel district court litigation
Higher costs and delays
This creates a tough spot for potential petitioners, as the board might deny the case before even looking at the merits of the petition.
Ex Parte Reexamination (EPR)
Not affected by PTAB discretionary denial
Handled directly by the patent office
Lower cost and simpler process
Focuses on the background knowledge of a person of ordinary skill
Because of these differences, many companies now prefer EPR as part of their patent defense strategy.
How Companies Are Changing Their Patent Defense Strategy
Companies are adjusting to the new discretionary denial process by:
Filing EPR instead of relying only on IPR
Avoiding delays caused by projected final written decisions
Using EPR can help reduce risk, especially when dealing with parallel district court litigation.
Are There New Rules for PTAB Discretionary Denial in 2026?
Yes. As of 2026, there are clearer and more structured guidelines for PTAB discretionary denial. These updates aim to make decisions more consistent and easier to understand. The patent office has refined how cases are reviewed, especially those involving parallel litigation and IPR petitions.
1. More Consistent Decision-Making
The PTAB now follows a more defined process when applying discretionary considerations. This helps companies better predict whether their case will be accepted or denied.
Cases with clear and solid evidence are more likely to move forward. Weak or unclear arguments are more likely to face PTAB discretionary denial. Ultimately, the board wants to ensure that the strength of the merits justifies the time spent on the review.
Protect the rights of both the patent owner and the challenger
Improve the overall patent review process
Many of these updates and changing rules are expected to be officially outlined in the next update to the Trial Practice Guide.
What This Means for You
In 2026, companies must be more strategic than ever.
To reduce risk:
File strong cases backed by prior art
Consider timing if patent litigation is already ongoing
Rethink your patent defense strategy before filing
Understanding these updates can help you avoid denial and choose the best path, especially when deciding between IPR vs EPR.
Final Thoughts: A Smarter Approach to Patent Defense
The rise of PTAB discretionary denial is changing the rules.
With the PTAB denial rate at 72%, companies must rethink their approach. The shift from IPR to EPR is not just a trend—it is a smarter patent defense strategy.
Peach State Tech helps founders, startups, and innovators share their stories—so the right investors, partners, and industry leaders are paying attention when it matters most.
If your company is navigating patent litigation, refining its patent defense strategy, or making key decisions like IPR vs EPR, your story deserves to be seen.
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