Patent Amendments and Prosecution History Estoppel Under Festo

On November 29, 2000, the Federal Circuit retroactively reduced the value of nearly 1.2 million unexpired United States patents by announcing a new rule for the somewhat obscure doctrine of prosecution history estoppel. Designed to foster clarity in patent applications, this new pronouncement in Festo Corp v. Shoketsu Kinzoku Kogyo Kabushiki Co. allows for easy copying of some patented inventions and reduces patent owner\u27s ability to prove infringement. This article outlines the change in the law and discusses the positive and negative consequences of the decision

Who’s Afraid of amazon.com v. barnesandnoble.com?

On October 2, 2000, the Court of Appeals for the Federal Circuit heard the appeal in the case of Amazon.com, Inc. v. Barnesandnoble.com, Inc. This appeal revolves around the alleged infringement by Barnesandnoble.com of a one-click web-shopping system patented by Amazon.com. The one-click system is among a series of recent controversial business method patents. According to some, business methods are legitimate inventions that deserve the protection of the US Patent and Trademark Office (PTO). According to others, business methods are unworthy of patent protection and may inhibit innovation in e-commerce. The outcome of this case has been widely anticipated by both sides of the business method patent debate as a signal that these patents will or will not be upheld by courts