Are patents (and the attached text, diagrams, images etc) covered by copyright? Or are they, by virtue of being published patents, in the public domain?
In the U.S. the text and drawings of a patent application/patent may be copyrighted by the author. If such protections are being claimed, the patent application must contain this authorization from 37 CFR 1.71 (d) and (e)-
e) The authorization shall read as follows: A portion of the disclosure of this patent document contains material which is subject to (copyright or mask work) protection. The (copyright or mask work) owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all (copyright or mask work) rights whatsoever.