One of the great truths in quilting is that one pattern may have dozens of names. If a person knows a pattern such as Monkey Wrench, there are at least a dozen other names it is also known by. Some I learned in the 70s are being repopularized under different names - tipsy log cabin and mock cathedral window are two.
I've seen traditional patterns worked in a particular fabric line re-named to reflect the fabric designer's line. Other folks like to play and make things up as they go along, and not stick to any certain pattern. While I've bought dozens of books over the years, I have probably bought only a handful of patterns.
Finally, there are some designing women here who make up their own creations, and do not want their original designs copied. I have seen people offended when I had to tell them I could not provide a link to a pattern I created in my head and on scrap paper. If someone wants to copyright their designs for sale in the future, they also would not want to give their design work away.