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Is Patent Marking an Issue?

By Leigh J. Martinson
July 29, 2009

Most patent holders have in their portfolios patents that include different types of claims. Examples include: method claims, apparatus claims, system claims, means-for claims and, in some cases, product-by-process claims. When choosing which claims to assert against an infringer, the traditional thought is “more is better.” That is, many choose to assert any and every claim that passes the Rule 11 test. While this strategy is understandable and often the best course of action, it might not yield the best damages result.

Depending on the damages theory of the litigation, it might be prudent to take an extra minute or two to discuss the possibility of asserting only method claims. If both apparatus and method claims are initially asserted, the decision should be revisited at various points in the litigation. Doing so may actually extend the damages period and enhance any damages award. This is especially true when questions related to patent marking exist with respect to the asserted apparatus claims.

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