I like that in 1898 Tesla patented logic gates whose principles are a fundamental part of so many modern processors - Something IBM tried to patent in the 1980's until they found he already had lol
He also made a working remote radio controlled (patented) boat in that same year, a couple of years before Marconi's 1900 Patent application. Tesla actually 1st transmitted and received radio in 1895.
In 1893 at the World Fair he had Many neon lights bent into all kinds of shapes, paterns and even famous scientists names
I just also found Tesla is attributed to having invented the laser too essentially in 1893, though his early device destroyed the ruby (his favorite choice) it used in a fairly short time. Later in 1918 he sent laser pulses to the moon.
too many more to mention really. Someone truly deserving of much greater recognition