Roborock Successfully Challenges Ecovacs: CNIPA Declares Two Patents Invalid
On July 14 and 16, 2026, the CNIPA declared two of Ecovacs' patents (both named 'Cleaning Device and Cleaning Robot System') entirely invalid following invalidation requests filed by Roborock. The CNIPA ruled that both divisional applications exceeded the scope of the original disclosure, violating Article 49, Paragraph 1 of the Implementing Regulations of the Patent Law.
WISECODE Take
Many believe holding a patent guarantees peace of mind, ignoring that a flawed patent can become a fatal vulnerability in market competition. Like a defensive line collapsing in military strategy, Roborock successfully invalidated two of Ecovacs' robotic cleaning patents (CN202210772092.X, etc.) in July 2026. The defeat occurred because Ecovacs' divisional applications overextended beyond the original disclosure, leaving them isolated and destroyed. For business owners, while divisional filing is a tactical defense, overreaching violates patent regulations and turns a weapon into a liability. We suggest: first, strictly verify that divisional claims do not exceed the original specification; second, utilize invalidation actions as a defensive counterattack against litigation threats. The best defense is a precise offense; we suggest consulting and evaluating Zhidian's "Patent Portfolio Health Check" to fortify your IP defenses before conflict begins.
Original sources
Compiled automatically by WISECODE IP Radar. Summaries are short source excerpts; commentary is AI-generated. See the source links for full text.
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