definiens: is defined and interpreted under United States patent law or patent laws of other relevant jurisdictions . All inventors of any inventions claimed or covered by any Transferred Patent within Seller Owned Proprietary Rights have each assigned such person ’s entire right, title and interest in and to any and all intellectual property rights in and to such inventions and all other related Intellectual Property to Seller or its Affiliate, or, if Seller or its Affiliate acquired any such Patents or other Intellectual Property, then to, to the knowledge of the Seller, the person w ho employed or otherwise engaged such inventor, and such person has assigned the same to Seller or its Affiliate . Seller has not received any written notice of any inventorship challenge, interference, invalidity or unenforceability with respect to any Tra nsferred Patents included in Seller Owned Proprietary Rights, and to it knowledge, there have been no claims have been asserted challenging the inventorship of any of the Transferred Patents