I want to know the answer to the following question:
How many of the court cases wound up at the Supreme Court?
All the background I'm provided with is that "Over a period of 18 years, the Bell Telephone Company faced 587 court challenges to its patents, including five that went to the U.S. Supreme Court, but none was successful in establishing priority over the original Bell patent and the Bell Telephone Company never lost a case that had proceeded to a final trial stage.". Is that enough to answer the question?
Answer: yes