Just because there are patents granted for things like geoengineering and cloud seeding, that is not evidence that anyone is actually doing it! It just means that someone was granted a patent for it. Nothing more and nothing less.

There are millions of patents for things (eg anti-gravity devices) that no one is actually doing, so the existence of a patent is not evidence for the thing that has been patented (unless you really are bat shit crazy and believe in things like anti-gravity devices).