This is an intellectual property term, which I can tell from the context already given (the text is about patents). A license is more than just a document like a driver's license; it is also a legal term for the right to use a piece of intellectual property (a patent, copyright, or trademark) owned by someone else. See
http://en.wikipedia.org/wiki/License for more information.
http://www.furutani.co.jp/cgi-bin/term.cgi?title={
”実施権”とは、特許されている発明を実施するための権利をいう。いわゆるライセンスである。
"Implementation rights" do not exist. "Implementation right" is an erroneous 直訳 for "実施" + "権." In a way, "implementation right" is a good description of what a license allows the licensee to do (use, or "implement," the licensor's intellectual property in the way(s) enumerated by the license agreement), but it is not the correct legal term.