I learned about them somewhere else, not in the DB, but that doesn't matter. They are published because they should, no matter where and how.
PKZip was closed all those years when their patent was in the pending state. And no, I can't postulate that, because publishing vs. keeping secret would be left on companies' good will.
PKZip was closed all those years when their patent was in the pending state. And no, I can't postulate that, because publishing vs. keeping secret would be left on companies' good will.