The concept of intellectual property law in the United States is rooted in the 14th Amendment to the Constitution, which defines patentability as "any new and useful process, invention, or composition of matter or any new and useful application of such process, or any new and useful improvement thereof." This definition has been interpreted by courts to include a wide range of creative works, including music, art, literature, and software.
The 20th Amendment to the Constitution, ratified in 1933, expanded the definition of copyright protection by extending it to sound recordings. The amendment also created the Copyright Office to administer federal copyright law.
https://conferences.law.stanford.edu/ipsummerschool2022/2014/01/21/purus-rhoncus-et-lundium-2/