New Mexico
How Festo Corp. v. Shoketsu Kinzoku Kogyo Kabushiki Co. applies in New Mexico: state-specific rules, key cases, and bar exam notes for Patent Law.
New Mexico law on patent infringement aligns with the principles established in 'Festo.' Specifically, New Mexico courts recognize the importance of the doctrine of equivalents and the potential for prosecution history estoppel to limit a patent holder's ability to assert claims that could be seen as waiving certain rights during the patent application process.
In New Mexico, the doctrine of equivalents is applicable, but may be limited by prosecution history estoppel if the patentee has made a narrowing amendment during prosecution.
This case highlighted that amendments made during prosecution can restrict the scope of equivalents available to a patentee.
The court ruled that even with narrowing amendments, certain claims may still be interpreted broadly under the doctrine of equivalents if the original claim language supports it.
Held that the doctrine of equivalents applies only when the equivalence does not touch on the subject matter of the original amendments.
New Mexico's application of the Festo principles closely mirrors the federal approach, whereby prosecution history estoppel plays a critical role in determining scope under the doctrine of equivalents. However, New Mexico courts may take a more nuanced view in certain circumstances, considering state-specific factors that may not be as prominent in federal courts.
Questions regarding the application of the doctrine of equivalents and prosecution history estoppel related to Festo are frequently included in the New Mexico bar exam, especially within the context of intellectual property law.