Mark P. McKenna

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** Assistant Professor, Saint Louis University School of Law. I owe debts of gratitude to individuals far too numerous to identify here. But a few deserve special mention, particularly Liz Magill, Barb Armacost, Tom Nachbar, Jennifer Mnookin, and Curt Bradley, whom I thank for their thoughts on this project and for their encouragement. I also received(More)
We have tested the ability of a gentle gradient of neurite-promoting activity to orient the extension of embryonic growth cones. Gradients of neurite-promoting activity were made with biologically active, tritium-labeled laminin. The distributions of laminin bound to glass substrata were visualized by autoradiography and quantified with an image processing(More)
Intellectual property law exists because exclusive private rights provide an incentive to innovate. This is the traditional upside of intellectual property: the production of valuable information goods that society would otherwise never see. In turn, too much intellectual property protection is typically viewed as counterproductive, as too much control in(More)
We have used aequorin as an indicator for the intracellular free calcium ion concentration [( Ca++]i) of Swiss 3T3 fibroblasts. Estimated [Ca++]i of serum-deprived, subconfluent fibroblasts was 89 (+/-20) nM, almost twofold higher than that of subconfluent cells growing in serum, whose [Ca++]i was 50 (+/-19) nM. Serum, partially purified platelet-derived(More)
S | 88 Criminal Trademark Enforcement and the Problem of Inevitable Creep Mark McKenna Professor of Law and Notre Dame Presidential Fellow, University of Notre Dame Law School Notre Dame, IN Trademark owners have long been able to enforce their rights through a federal cause of action against unauthorized uses of their marks. Private enforcement, however,(More)
It is not uncommon for multiple parties in the stream of commerce— manufacturers, distributors, end users—to be involved in the infringement of a single patent. Yet courts continue to struggle with such scenarios. Attempts to deal with them—particularly when plaintiffs asserted so-called method patents, which cover specific “steps,” or actions—have produced(More)