Publishing Unpublished undergraduate research after a decade
You have a lot of questions to answer before you proceed.
If you intend to patent, you should start with that, or at least note that if you publish first, then in some places (US) a clock starts and you need to file a patent within a fixed time period or you work could become &quot;prior art&quot;. You also need to know if the university is the proper party to file the patent. They may have rules about that, which you implicitly agreed to earlier. And patenting can be an expensive proposition, require advice from a patent attorney.
If you intend to publish, you need to determine whether others should be co-authors, and, if so, get them involved. Be careful of issues of plagiarism here if others contributed.
As to the required quality for publishing, the editor and reviewers of a journal will give you that information after you submit your work.