many of us make quilts and show them with out pattern information because we have not used someone's pattern...we make the quilts up as we go.
i may make a traditional block or two...but you are not going to find any of my quilts in a magazine, pattern or book in any shop. if someone wanted to (try) to make one of my quilts they would have to contact me and (try) to talk me into drafting the pattern. I never make the same quilt twice- everyone is its own original design and there's not another one like it unless someone buys it and copies it...or requests...