31 October 2018 | ZEROGeoengineering.com |  Patent US 20,180,271,034 A1 |Laser-induced rain method; “1 ) high peak power filament inducing laser pulses to ionize air molecules and preexisting aerosols , and 2 ) manipulation of nano and microsized particles using special function beams as potential particle particle traps, such as the Laguerre Gaussian and Gaussian beams.”

Link To Patent US 20,180,271,034 A1