United States Patent and Trademark Office; Methods in producing Rain Fall. https://www.geoengineeringwatch.org/links-to-geoengineering-patents/
Extensive List Of Patents » Extensive List Of Patents | Geoengineering Watch
Exposing the climate geoengineering cover-up
https://www.geoengineeringwatch.org/links-to-geoengineering-patents/