(source: https://www.rsc.org/periodic-table/element/60/neodymium)

Neodymium is a component, of didymium glass: Crookes Glass (1926); this is a special glass for goggles used during glass blowing and welding.

Neodymium glass is used to make lasers: Neodymium glass laser having an output at about 9180 a [sic] (1966).

Neodymium oxide is used as an exhaust gas catalyst (Neodymium Oxide Catalyst Compositions (1969)), and as a catalyst for preparing esters (Neodymium Oxide As Catalyst For Preparing Esters (1964)).


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