Erise Recognized as Top PTAB Firm by Patexia, Outperforms Larger Firms

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In its newly released PTAB 2025 Intelligence Report, Patexia has once again recognized Erise IP among the top-performing and most active law firms in the country, a significant achievement for a small IP firm competing against some of the nation’s largest players. The report analyzes 6,857 proceedings filed between July 1, 2020, and June 30, 2025, involving thousands of cases, law firms and practitioners. 

Erise ranked:

  • #8 Most Active Law Firm (Petitioner) — up one spot from 2024
  • #16 Most Active Law Firm (Overall) — holding steady year over year
  • #26 Best Performing Law Firm (Petitioner) — holding steady year over year
  • #51 Best Performing Law Firm (Overall)

In the individual attorney rankings, three Erise attorneys earned top placements:

Additional Recognition in Patent Litigation

Erise was also ranked in Patexia’s Patent Litigation 2025 Intelligence Report, which evaluated more than 3,000 firms based on case activity and outcomes across 17,985 cases filed between July 1, 2019 – June 30, 2024:

  • #51 Most Active (Defendant) out of 2,123 firms
  • #99 Most Active (Overall) out of 3,186 firms
  • #51 Best Performing (Defendant)
  • #61 Best Performing (Overall)

Erise attorneys Eric Buresh (#58) and Michelle Marriott (#80) were also recognized among the most active attorneys representing defendants in patent litigation.

While the rankings spotlight individual attorneys and firmwide performance, Erise credits much of its success to its collaborative model—one that brings together attorneys, technical analysts, and patent agents to deliver results that rival firms many times its size. This deep bench of specialized expertise and strategic insight is a key driver of the firm’s consistent performance.

About Patexia

Patexia’s annual intelligence reports are among the most comprehensive in the IP industry, analyzing thousands of cases and tens of thousands of patent claims to evaluate law firm performance based on objective data.

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