CONTROLLED RAIN AND FOG TESTING APPARATUS Zero Geoengineering Posted on July 10, 2018 by directorJuly 10, 2018 United States Patent U.S. 9,739,712 B2 August 22, 2017 Link To Patent Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on Tumblr (Opens in new window) Tumblr Share on Reddit (Opens in new window) Reddit Email a link to a friend (Opens in new window) Email Related