Many writers license their works rather than selling them; this gives them a little more control.
Depending on the writer's contract, the script may be a work-for-hire, meaning rights automatically go to the organization they're working for instead of the individual.
The cast of Shoot the Scriptwriter - 2010 includes: Kostas Koronaios as Scriptwriter
If the patterns are under copyright then you need the permission of the copyright holder to sell them.
Edward Taylor - scriptwriter - was born in 1931.
Alan Simpson - scriptwriter - was born in 1929.
John Esmonde - scriptwriter - was born in 1937.
John Esmonde - scriptwriter - died in 2008.
Raymond Allen - scriptwriter - was born in 1940.
Gerald Gardner - scriptwriter - was born in 1929.
If you mean "Can you sell a pattern copyrighted by someone else?" the answer is yes but only with permission. If you mean "Can I create a pattern from scratch, copyright it and sell it?" the answer is yes.
If you control the copyright, anywhere. If you don't control the copyright, and don't have a license, nowhere.
Steven Brill - scriptwriter - was born on 1962-05-27.
If the mural has any copyright at all, it was initially owned by the author, but the author may sell his or her copyright to others.