Nope the court eventually sided with DeForest over the regeneration circuit that Armstrong claimed to patent first...look it up on wikipedia if you don't believe me.
From Wiki:
"Armstrong was one of the most prolific inventors of the radio era, with a vision that was ahead of his time. He invented the Regenerative circuit (invented while he was a junior in college at Columbia, and patented 1914), the Super-regenerative circuit (patented 1922), and the Superheterodyne receiver (patented 1918). The latter was developed when Armstrong was in the Army during World War I. Stationed in France, he rose to the rank of major. For the rest of his life his friends informally addressed him by that title."
Also:
"his patent lawsuit was the longest ever litigated to its date, at 12 years. Armstrong won the first round of the lawsuit, lost the second, and stalemated in a third. Before the United States Supreme Court, De Forest was granted the regeneration patent in what is today widely believed to be a misunderstanding of the technical facts by the Supreme Court."
Not the first person to get screwed in court, and he won't be the last.
And what do you have against that great American - Warren Harding.