This is always a good source of confusion and humor.
I remember an example from many years ago. Two television news readers were using the same name. One of them sued the other to make her stop using that name. As you might guess, the one being sued was actually using her real name while the one initiating the suit was not. I don't know how this turned out.
And just a few days ago I replaced a burned out light bulb and happened to glance at the packaging. So I now know that "regular, everyday light" is a registered trademark of the General Electric Corporation.
I remember an example from many years ago. Two television news readers were using the same name. One of them sued the other to make her stop using that name. As you might guess, the one being sued was actually using her real name while the one initiating the suit was not. I don't know how this turned out.
And just a few days ago I replaced a burned out light bulb and happened to glance at the packaging. So I now know that "regular, everyday light" is a registered trademark of the General Electric Corporation.