Pharmaceutical makers are anxiously awaiting the results of Wyeth's (NYSE:WYE) product liability case being debated by the U.S. Supreme Court. The question surrounds how broad a spectrum of possible injuries should the company be responsible for if someone suffers harm. While the results of the case could impact the legal responsibility of product makers beyond pharmaceutical companies, investors should note how a ruling could impact Wyeth as an investment option. (To learn how to factor lawsuits into your valuations, read Litigation: Are Your Investments At Risk?)