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Wire · regulatory

Federal Circuit Vacates in Part, Affirms in Part PTAB Ruling in Cisco IPR

27 August 2026 · By · Wire by Fusion42

Published

27 August 2026

Topic

regulatory

◆ Sectors

Enterprise Software

◆ Geography

United States

◆ Source

Read at ipwatchdog.com →

◆ Verified

Fusion42 · 27 August 2026 · Fusion42 review

The U.S. Federal Circuit partially vacated and partially affirmed a PTAB decision on an inter partes review involving Cisco and Zilkr Cloud Technologies, remanding for further proceedings on claim construction issues related to service activation in a unified communication platform patent.

This Wire brief sits within Fusion42's coverage of Enterprise Software.

◆ ◆ The Wire takeaway

You must revisit claims involving service activation wording in patents if you operate unified communications tech. The Federal Circuit’s narrower interpretation opens a door to challenge existing obviousness arguments tighter than before.

◆ Coverage

1 source · 27 Aug 2026

◆ Related on Wire

◆ Topics

Enterprise Softwarepatent-litigationip-reviewfederal-circuitciscoptab