I designed a very distinctive runner pattern. After posting it online to teach at the shop where I worked, I found the exact same design. I was afraid to sell my pattern due to copyright issues. I later found out my instructions were completely different and I could have legally sold my pattern. My understanding is: you can not use a copyrighted photo or instructions but you may have the same pattern. It was recommended that I mail a copy of the full pattern to myself and not open it when it arrives so if ever questioned I would have proof of when it was designed. I still don’t up what this would accomplish if ever taken to court.