Did James Watt Invent The Steam Engine?

Did James Watt Invent The Steam Engine? James Watt did not invent the steam engine. He did, however, improve the engine apparatus. In 1764 Watt observed a flaw in the Newcomen steam engine: it wasted a lot of steam. Watt deduced that the waste resulted from the steam engine’s single-cylinder design. What is James Watt