In a recent ruling, the U.S. Court of Appeals for the Federal Circuit discussed paramount details pertaining to how numerical ranges that are claimed narrowly in a patent can still meet the written description requirement, even when only broader numerical ranges are disclosed in the patent’s specification. This ruling hints at the significance of a cautious approach to criticism of ranges within the realm of patent law.
The ruling was part of the litigation between RAI and Philip Morris where the Federal Circuit concluded that the patent in question, despite its narrowly claimed numerical ranges, provided sufficient written description.
This outcome and its details are instrumental for practitioners, guiding them on the nuanced aspects of handling numerical ranges in patent law. For in-depth understanding, the noted attorneys at BCLP have decoded the bearings of this ruling and offered their insights on Law360.
Please, click here for more detailed information from the experienced professionals at BCLP regarding the repercussions of this critical ruling.