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Philip Morris' Legal Challenge Up in Smoke: Vape Patent Upheld on Appeal The Protracted Vaping Patent Dispute At the heart of this legal conflict was a patent that pertained to vaping technology, initially awarded to a rival company. Philip Morris initiated legal proceedings by challenging... Read the full IIPLA article: https://iipla.org/news/philip-morris-legal-challenge-up-in-smoke-vape-patent-upheld-on-appeal