Leone and Guinea during the 2014 Ebola outbreak at the required much colder temperature. The Photonic Fence is a device to identify and kill mosquitos with lasers to prevent malaria, suggested by Lowell Wood, a company researcher. The device uses a non-lethal laser to track insects and monitor their wing-beat frequency. If it detects a female mosquito, the device fires a kill laser. It has an effective range of 100 feet and can purportedly kill up to 100 mosquitoes per second. The device has not yet been mass-produced,. The Autoscope uses artificial intelligence to diagnose malaria. The device has been field-tested in Thailand and reportedly outperformed the average human diagnostician. It too is not yet scheduled for mass-production. Mazzi is a milk jug designed for farmers in the developing world. The firm partnered with Heifer International to design the jug, which is cheap, sturdy, and easy to clean with features a funnel that results in decreased spillage. In mid-2020, Global Good was dismantled, with some of its components (most notably the Institute for Disease Modeling) transitioning into the Gates Foundation, and some evolving into new entities under Gates Ventures. Companies created Intellectual Ventures has created a number of independent companies to bring its discoveries to mass market. Examples include Kymeta, a satellite technology company, TerraPower, which seeks to improve nuclear power, Evolv, which applies metamaterials to imaging, and Echodyne, a metamaterials-based radar communications company. Controversy Publicly, Intellectual Ventures states that a major goal is to assist small inventors against corporations. In practice, the vast majority of IV's revenue comes from buying patents, aggregating these patents into a single portfolio spanning many disparate technologies and tying these patents together for license to other companies under the threat of litigation, or filing lawsuits for infringement of patents, a controversial practice referred to as "patent trolling." Intellectual Ventures' purchased patents have largely been kept secret, though press releases with Telcordia and Transmeta indicated some or all of their patent portfolios were sold to the company. It reports that its purchasing activity as of spring 2010 has sent $350 million to individual inventors, and $848 million to small and medium size enterprises as well as returning "approximately $1 billion" to investors before filing any lawsuits, but IV's assistance to individual inventors has been contested. Investigative journalism suggests that the company makes most of its income from lawsuits and licensing of already-existing inventions, rather than