(source: https://www.rsc.org/periodic-table/element/49/indium)

Indium tin oxide (ITO), is an important part of touch screens (Ito Thin Film, Film-Forming Method Of Same, Transparent Conductive Film And Touch Panel (2005)), and solar panels (Method for making a thin-film poly-crystalline silicon solar cell on an indium tin oxide-glass substrate at a low temperature (2009)). This is because it conducts electricity, bonds strongly to glass and is transparent. 

Indium nitride (High Electron Mobility Transistor With Indium Nitride Layer (2016)), phosphide (Indium-phosphide hetero-MIS-gate field effect transistor (1989)), and antimonide (Indium antimonide transistor (1963)) are semiconductors used in transistors and microchips.

Indium and some of its alloys have the ability to wet glass and this property is exploited when applications requiring glass to metal seals are required: Glass-to-metal tube coupling having indium seal means (1965)).


All patent information has been obtained from Espacenet (European Patent Office).