Have to take ownership of USB port after each reboot

I have a laser engraver. I was having issues getting Ubuntu to talk to it via USB. I finally sorted that out, but now when I reboot, I have to run the command below every time, or I can't talk to the engraver. What am I missing so it will stay permanently? Thanks.

sudo chown [username] ttyUSB0

ttyUSB is a serial connection. It should be available. You might have to change the user rights:

sudo adduser <user> dialout

where your username should replace "< user >"