Copyrights are different from patents and trademarks and specifically do not protect ideas/discoveries (reserved for patents) or words, phrases, and symbols (reserved for trademarks).

“Copyright in General,” U.S. Copyright Office, https://www.copyright.gov/help/faq/faq-general.html#:~:text=Copyright%2C%20a%20form%20of%20intellectual,%2C%20computer%20software%2C%20and%20architecture.

How is a copyright different from a patent or a trademark?

Copyright protects original works of authorship, while a patent protects inventions or discoveries. Ideas and discoveries are not protected by the copyright law, although the way in which they are expressed may be. A trademark protects words, phrases, symbols, or designs identifying the source of the goods or services of one party and distinguishing them from those of others.