Chemours’ injunctions relate to R1234yf blends
21st October 2026
GERMANY: Refrigerant manufacturer Chemours has confirmed that the injunctions it issued to four exhibitors at last week’s Chillventa exhibition were related to infringements of its patents for 1234yf blends.
Both Chemours and fellow manufacturer Solstice announced that they had issued court injunctions at the show. Solstice claimed to have issued five injunctions but did not name the refrigerants, merely saying that their patents covered the manufacturing process of a certain HFO and the composition of a certain proprietary HFO blend.
A Chemours spokesperson told the Cooling Post that its injunctions patents related to 1234yf-containing blends. The patents it holds on blends that include R1234yf are R454B, R452A, R454A, R454C and R513A.
Joseph Martinko, Chemours’ thermal and specialised solutions president, said: “Innovation does not happen by accident; it is built on years of research, development, and investment.
“Protecting intellectual property is essential to preserving incentives for innovation, advancing refrigerant technology, and supporting fair competition,” he added.
Chemours and Solstice have a long history of joint development, patent cross-licensing, and shared market protection for next-generation HFO refrigerants.
In August, Chemours announced the launch of R1234ze(E) and an R1234ze(E) blend, R515B, under its Opteon brand. Shortly afterwards, Solstice released a statement saying that it was aware of “a recent public announcement from another chemical company regarding the planned introduction of hydrofluoroolefin (HFO) 1234ze and 1234ze-containing blends”.
“This announcement does not alter our view that key elements of the Solstice patent portfolio are relevant to processes for the manufacture of HFO-1234ze. To date, Solstice has not licensed any manufacturing-related IP to others,” it said.
