CLOUD SEEDING Zero Geoengineering Posted on June 17, 2018 by directorJune 17, 2018 United States Patent 5,174,498 29 December 1992 The invention relates to the augmentation of rainfall and to means for obtaining such effect. 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