Air Liquide's corporate venturing unit has invested in Carmat, Poly-Shape and Solidia Technologies so far in 2016, as well as Inpria.

Aliad, the corporate venturing subsidiary of industrial gases producer Air Liquide Group, has disclosed four investments, all of which were made in 2016.

The unit has invested an undisclosed amount in Carmat, the France-based developer of an artificial heart, as part of a joint venture to develop a portable hydrogen fuel cell. Carmat raised $55m from unnamed French institutional investors in February 2016.

Aliad has also provided an undisclosed sum to Solidia Technologies, the US-based developer of technology for the…