IP Licence Breach Contract Loss Expert Witness

Intellectual property licence agreements govern the commercial exploitation of patents, trade marks, copyrights, and know-how across technology, media, pharmaceutical, and manufacturing sectors. When a licensee breaches the terms of a licence, by under-reporting sales, exceeding territorial limits, sublicensing without authority, or continuing use after termination, the licensor's financial remedy depends on precise quantification of the royalty shortfall and any additional losses flowing from the breach. A contract loss expert witness calculates the royalties that should have been paid under the contractual rate applied to the licensee's actual usage, with supporting audit of sales records, royalty statements, and third-party data.

Where the contractual royalty rate is disputed or the licence was never properly agreed, expert witnesses perform a reasonable royalty analysis using comparable arm's-length licence transactions as benchmarks. Adjustments are made for exclusivity, territory, field of use, and the stage of IP development. Lost profits from IP misuse, where the licensor would have earned greater returns through direct exploitation or alternative licensing, are quantified separately, with the expert addressing which measure of damages is appropriate under the compensatory principle and any contractual limitations on recovery.

The relief from royalty method provides an alternative valuation framework, estimating the royalty payments the IP owner avoids by owning rather than licensing the intellectual property, discounted to present value. In licence breach cases, this approach can quantify the economic value of the licence that was improperly exploited. Expert witnesses also address loss of exclusivity, passing off damages where applicable, and the interaction between contractual royalty claims and statutory remedies. Reports are structured to support both breach of contract claims and intellectual property infringement proceedings in the High Court (Chancery Division), IPEC, and arbitration.

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