NEWS FLASH: //Check our latest course offering on Patent-Business-Strategy over at Udemy here: http://www.udemy.com/patent-business-strategy/ with a 50 per cent launch discount // A general academic discussion about doctrine of equivalence in US, Japan and other countries as applied by courts in patent infringement cases. [Some material has not been updated for recent changes, so use it at your own risk] Disclaimer: This is not legal advice.