Weather Modification Patents
1891 – 0462795 – method of producing rain-fall
1914 – 1103490 – rain maker (balloon images)
1917 – 1225521 – protection from poisonous gas in warfare
1920 – 1338343 – process and apparatus for the production of intense artificial clouds, fogs, or mists
1924 – 1512783 – composition for dispelling fogs
1927 – 1619183 – process of producing smoke clouds from moving aircraft
1928 – 1665267 – process of producting artificial fogs
1932 – 1892132 – atomizing attachment for airplane engine exhausts
1933 – 1928963 – electrical system and method (for spraying chemtrails)
1934 – 1957075 – airplane spray equipment
1936 – 2045865 – skywriting apparatus
1936 – 2052626 – method of dispelling fog (mit)
1937 – 2068987 – process of dissipating fog
1939 – 2160900 – method for vapor clearing
1941 – 2232728 – method and composition for dispelling vapors
1941 – 2257360 – desensitized pentaerythritol tetranitrate explosive
1946 – 2395827 – airplane spray unit (us