Lewis Roca Blog

In Curver v. Home Expressions, decided on September 12, 2019, the Federal Circuit affirmed the dismissal of Curver’s design patent infringement suit against Home Expressions. The Federal Circuit held that “claim language can limit the scope of a design patent where the claim language supplies the only instance of an article of manufacture that appears...

The United States, unlike many other countries, requires proof of use before a trademark registration will be granted.  Applicants can still file an application before use commences, provided that the applicant has a bona fide intent to use a mark, but the trademark registration still will not issue until acceptable use evidence is submitted. …

Per- and polyflouroalkyl substances (collectively known as a class as “PFAS”) have been widely used in industrial and consumer applications for years.  PFAS are a class of long-lasting chemicals that have been shown to accumulate in the human body.  PFAS have historically been used in non-stick cookware, stain and water-resistant fabrics, and are also...