Fun note, just having a US patent doesn't mean you invented it, it just means you were the first to get a patent for something.
The concept of a hairbrush was invented in ancient Egyptian times by taking combs and glueing them together in an offset pattern and attaching an handle.
https://brigittesbrushes.com/the-history-of-hair-brushes/
The first US patent was back in 1854 by a man named Hugh Rock.
Blacks didn't invent the bleeding things.
I draw, code, and make memes sometimes.