Double-Take
Taking a second look at reality.

Process for controlling weather. US2550324A
 

Airplane spray equipment. US1957075A
 

Method and apparatus for modifying supercooled clouds. US6056203A
 

Atomizing attachment for airplane engine exhausts. US1892132A
 

Method of artificially influencing the weather. US3056556A
 

Combustible compositions for generating aerosols particularly suitable for cloud modification and weather control and aerosolization process. (1968). US3630950A
 

Combustible compositions for generating aerosols, particularly suitable for cloud modification and weather control and aerosolization process. (1973). USRE29142E 
 

Control of tropical cyclone formation. US2903188A
 

Electrical system and method. US1928963A
 

Method of producing rain-fall. US462795A
 

Process and apparatus for the production of intense artificial clouds, fogs, or mists. US1338343A
 

Metal chloride screening smoke mixture. US2614083A
 

Rain maker (balloon images). US1103490A
 

Protecting from poisonous gas in warfare. US1225521A
 

Composition for dispelling fogs.
https://patents.google.com/patent/US1512783A/

Process of producing smoke clouds from moving aircraft.
https://patents.google.com/patent/US1619183A/

Process of producting artificial fogs.
https://patents.google.com/patent/US1665267A/

Skywriting apparatus.
https://patents.google.com/patent/US2045865A/

Method of dispelling fog.
https://patents.google.com/patent/US2052626A/

Process of dissipating fog.
https://patents.google.com/patent/US2068987A/

Method for vapor clearing.
https://patents.google.com/patent/US2160900A/

Method and composition for dispelling vapors.
https://patents.google.com/patent/US2232728A/

Desensitized pentaerythritol tetranitrate explosive.
https://patents.google.com/patent/US2257360A/

Airplane spray unit (U.S. department of agriculture).
https://patents.google.com/patent/US2395827A/

Smoke-producing mixture.
https://patents.google.com/patent/US2409201A/

Smoke screen generator.
https://patents.google.com/patent/US2476171A/

Aerial discharge device. 
https://patents.google.com/patent/US2480967A/

Method of crystal formation and precipitation.
https://patents.google.com/patent/US2570867A/

Method of crystal formation and precipitation.
https://patents.google.com/patent/US2570867A/

Material disseminating apparatus for airplanes.
https://patents.google.com/patent/US2582678A/

Production of tio2 pigments (DuPont).
https://patents.google.com/patent/US2591988A/

Smoke generator.
https://patents.google.com/patent/US2633455A/

Steam generator.
https://patents.google.com/patent/US2688069A/

Method and apparatus for detecting minute crystal forming particles suspended in a gaseous atmosphere.
https://patents.google.com/patent/US2721495A/ 

Controllable dispersal device.
https://patents.google.com/patent/US2730402A/

Decomposition chamber for monopropellant fuel.
https://patents.google.com/patent/US2801322A/

Process for the condensation of atmospheric humidity and dissolution of fog.
https://patents.google.com/patent/US2835530A/

Generation of electrical fields. (Things like Haarp, moving clouds around).
https://patents.google.com/patent/US2881335A/

Method for dispersing natural atmospheric fogs and clouds.
https://patents.google.com/patent/US2908442A/

Fog dispelling composition.
https://patents.google.com/patent/US2962450A/

Cloud seeding carbon dioxide bullet.
https://patents.google.com/patent/US2963975A/

Aerial insecticide dusting device.
https://patents.google.com/patent/US2986360A/

Propellant system.
https://patents.google.com/patent/US3044911A/

Composite incendiary powder containing metal coated oxidizing salts.
https://patents.google.com/patent/US3120459A/

Silver iodide cloud seeding generator.
https://patents.google.com/patent/US3126155A/

Generation of ice-nucleating crystal.
https://patents.google.com/patent/US3127107A/

Electrostatic mixing in microbial conversions.
https://patents.google.com/patent/US3131131A/

Self-focusing antenna system. (Haarp, Eiscat, Ect.).
https://patents.google.com/patent/US3174150A/

Pyrotechnic composition comprising solid oxidizer, boron and aluminum additive and binder.
https://patents.google.com/patent/US3257801A/

Electrically heated smoke producing device.
https://patents.google.com/patent/US3234357A/

Metallic composition for production of hygroscopic smoke.
https://patents.google.com/patent/US3274035A/

Means for communicating through a layer of ionized gases. (Haarp, Ect.).
https://patents.google.com/patent/US3300721A/

Cloud seeding apparatus.
https://patents.google.com/patent/US3313487A/

Heating device for use with aerosol containers.
https://patents.google.com/patent/US3338476A/

Automatically adjustable airfoil spray system with pump.
https://patents.google.com/patent/US3410489A/

Rainmaker. (1969)
https://patents.google.com/patent/US3429507A/

Aircraft dispenser pod having self-sealing ejection tubes.
https://patents.google.com/patent/US3430533A/

Fluidized particle dispenser.
https://patents.google.com/patent/US3432208A/

Titanium dioxide pigment coated with silica and alumina.
https://patents.google.com/patent/US3437502A/

Production of improved metal oxide pigment.
https://patents.google.com/patent/US3531310A/

Method and apparatus for seeding clouds.
https://patents.google.com/patent/US3441214A/

Trapped electromagnetic radiation communications system. (Haarp - Raytheon).
https://patents.google.com/patent/US3445844A/

Method of producing precipitation from the atmosphere and apparatus therefor.
https://patents.google.com/patent/US3456880A/

Apparatus for suppressing contrails.
https://patents.google.com/patent/US3517512A/

Artificial ion cloud.
https://patents.google.com/patent/US3518670A/

Control of atmospheric particles. (Dow Chemical Company - predecessor of the merged company DowDuPont).
https://patents.google.com/patent/US3534906A/

Method of cloud seeding.
https://patents.google.com/patent/US3545677A/

System and method for irradiation of planet surface areas.
https://patents.google.com/patent/US3564253A/

Freezing nucleation.
https://patents.google.com/patent/US3587966A/

Method of increasing the likelihood of precipitation by the artificial introduction of sea water vapor into the atmosphere windward of an air lift region.
https://patents.google.com/patent/US3601312A/

Methods of treating atmospheric conditions.
https://patents.google.com/patent/US3608810A/

Treatment of atmospheric conditions by intermittent dispensing of materials therein.
https://patents.google.com/patent/US3608820A/

Weather modification method.
https://patents.google.com/patent/US3613992A/

Method for dispersing fog with phosphate salt compositions.
https://patents.google.com/patent/US3647710A/

Algin sponge and process therefor.
https://patents.google.com/patent/US3653383A/

Weather modification utilizing microencapsulated material.
https://patents.google.com/patent/US3659785A/

Solar temperature inversion device.
https://patents.google.com/patent/US3666176A/

Pyrotechnics comprising oxide of silver for weather modification use.
https://patents.google.com/patent/US3677840A/

Fog dispersal.
https://patents.google.com/patent/US3690552A/

Device for clearing impurities from the atmosphere.
https://patents.google.com/patent/US3722183A/

Pyrotechnic composition for generating lead based smoke.
https://patents.google.com/patent/US3769107A/

Air pollution control method.
https://patents.google.com/patent/US3784099A/

Cloud seeding system.
https://patents.google.com/patent/US3785557A/

Weather modification process.
https://patents.google.com/patent/US3795626A/

Chaff dispensing system.
https://patents.google.com/patent/US3808595A/

Rocket having barium release system to create ion clouds in the upper atmosphere. (Nasa)
https://patents.google.com/patent/US3813875A/

Method of generating ice nuclei smoke particles for weather modification and apparatus therefor.
https://patents.google.com/patent/US3835059A/

Electrical heating apparatus for generating superheated vapors.
https://patents.google.com/patent/US3835293A/.

Freezing nucleant.
https://patents.google.com/patent/US3877642A/

Process for local modification of the structure of fog and clouds for triggering their precipitation and for hindering the development of hail producing clouds.
https://patents.google.com/patent/US3896993A/

Powder contrail generation.
https://patents.google.com/patent/US3899144A/

Gas generating compositions.
https://patents.google.com/patent/US3902934A/

Method of fog dispersion.
https://patents.google.com/patent/US3940059A/

Vortex ring generator.
https://patents.google.com/patent/US3940060A/

Smoke generator.
https://patents.google.com/patent/US3990987A/

Countermeasure system for laser radiation.
https://patents.google.com/patent/US3992628A/

Broadcast dissemination of trace quantities of biologically active chemicals.
https://patents.google.com/patent/US3994437A/

Method of controlling and/or improving high-latitude and other communications or radio wave surveillance systems by partial control of radio wave et al (Haarp – Cornell University.)
https://patents.google.com/patent/US4035726A/

Method and apparatus for triggering a substantial change in earth characteristics and measuring earth changes.
https://patents.google.com/patent/US4042196A/

Pyrotechnic cloud seeding composition.
https://patents.google.com/patent/US4096005A/

Method of hardening liquid resols.
https://patents.google.com/patent/US4111911A/

Method and apparatus for production of seeding materials.
https://patents.google.com/patent/US4129252A/

Weather modification automatic cartridge dispenser.
https://patents.google.com/patent/US4141274A/

Fluid bed chaff dispenser.
https://patents.google.com/patent/US4167008A/

High-performance MHD solid gas generator.
https://patents.google.com/patent/US4269637A/

Procedure for the artificial modification of atmospheric precipitation as well as compounds with a dimethyl sulfoxide base for use in carrying out said procedure.
https://patents.google.com/patent/US4362271A/

Atmosphere modification satellite.
https://patents.google.com/patent/US4402480A/

Laminar microjet atomizer and method of aerial spraying of liquids.
https://patents.google.com/patent/US4412654A/

Method and apparatus for aerosol particle absorption spectroscopy.
https://patents.google.com/patent/US4415265A/

Relative humidity sensitive material.
https://patents.google.com/patent/US4373391A/

Method of and means for weather modification.
https://patents.google.com/patent/US4470544A/

Bipolar fog abatement system.
https://patents.google.com/patent/US4475927A/

Liquid propane generator for cloud seeding apparatus.
https://patents.google.com/patent/US4600147A/

Aerosol particle charge and size analyzer.
https://patents.google.com/patent/US4633714A/

Method and apparatus for modification of climatic conditions.
https://patents.google.com/patent/US4643355A/

Method of producing cumulus clouds.
https://patents.google.com/patent/US4653690A/

Particulates generation and removal.
https://patents.google.com/patent/US4684063A/