Law Commons^™

Retroactivity At The Federal Circuit, David L. Schwartz

Indiana Law Journal

A substantial subset of patent opinions from the Federal Circuit Court of Appeals functions in a wholly different manner from ordinary judicial opinions: they have strong retroactive effects with weak prospective effects. All Federal Circuit opinions have strong retroactive effects because issued patents and pending applications rarely can be modified. The Federal Circuit decisions apply in full to these patents and applications, even though they were prepared without the benefit of the rulings. In contrast, many of these opinions have almost no prospective effects. Patent law provides tremendous linguistic flexibility to patent drafters, which can be used to avoid the …