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Can a patent be invalidated after it's been granted?
by tareqak 7y ago
Can a patent be invalidated after it's been granted?
- patentatt 7y agoYes. Through the PTO (reexam, IPR, other PTAB proceedings) or through a federal court. Happens every day.
- saint_abroad 7y agoPTO invalidation happens every day but takes /years/ to process. Until then, frivolous patent holders have free rein to coerce contracts that licence claims they know won't stand re-examination. https://www.ipwatchdog.com/2017/02/17/federal-circuit-affirms-ptab-invalidate-mphj-patent/ https://www.ipwatchdog.com/2017/02/17/federal-circuit-affirm...