Hanover, May 7, 2018 --- Solvay has received confirmation of the validity of its Chinese patent n° 96196505.3 concerning rare earth mixed-oxide materials for automotive emissions-control catalysts, by the Chinese Supreme People’s Court. This decision is final and no appeal is possible.

This confirms the previous judgment of the Beijing High People’s Court.

The patent at issue, together with 4 other mixed-oxide patents, is also being enforced by Solvay and Daiichi Kigenso Kagaku Kogyo Co. (DKK), in Shandong Zibo Intermediate People’s Court against ZAMR (Zibo JiaHua Advanced Material Resources Co. Ltd), a subsidiary of the Neo Performance Material Group (“NEO”).

Recently, NEO reported a first instance decision of the Chinese Patent Office to invalidate one of these 5 enforced patents. Solvay will appeal this decision and the patent will remain in force until final judgement. Solvay’s recent victory in China’s highest court gives confidence that higher courts may confirm the patent’s validity.

Furthermore, Solvay strongly believes there is no impact of this Chinese first instance decision on the validity of the European, American, Korean, Japanese or South African patent counterparts nor, notably, on the opposition proceedings in the European Patent Office. This patent was recently asserted against NEO in Germany in the Düsseldorf Regional Court. In all previous proceedings the respective courts have confirmed infringement by NEO of Solvay’s patents. Solvay is therefore confident of the outcome of the ongoing Düsseldorf infringement lawsuit against NEO.

If, following the hearing scheduled in October 2018, the Düsseldorf Court holds that the patent (EP 1527028) is infringed, it will order an injunction of mixed oxides falling into the patent’s scope. This possibility is already today a risk for NEO’s customers and for the automotive manufacturers.

Rare earth oxides are used in automotive catalysts to abate noxious gases from engine exhaust. Ever stricter air quality standards require increasingly complex formulated rare earth oxides that are the result of extensive research and innovation programs. Solvay’s OPtalys® and Actalys® product ranges offer tailored solutions for all types of automotive catalysts and contribute significantly to cleaner mobility.

To continue to provide innovation to benefit to global environment, Solvay is committed to vigorously enforcing its intellectual property rights against suspected unauthorized use.

Neo is an indirect wholly-owned subsidiary of Neo Performance Materials Inc., which is headquartered in Toronto, Canada and which has closed its initial public offering on the Toronto Stock Exchange on December 8, 2017. 


Solvay is an advanced materials and specialty chemicals company, committed to developing chemistry that addresses key societal challenges. Solvay innovates and partners with customers worldwide in many diverse end markets. Its products are used in planes, cars, batteries, smart and medical devices, as well as in mineral and oil and gas extraction, enhancing efficiency and sustainability. Its lightweighting materials promote cleaner mobility, its formulations optimize the use of resources and its performance chemicals improve air and water quality. Solvay is headquartered in Brussels with around 26,800 employees in 61 countries. Net sales were €10.1 billion in 2017, with 90% from activities where Solvay ranks among the world’s top 3 leaders, resulting in an EBITDA margin of 22%. Solvay SA (SOLB.BE) is listed on Euronext Brussels and Paris (Bloomberg: SOLB.BB - Reuters: SOLB.BR) and in the United States its shares (SOLVY) are traded through a level-1 ADR program. Financial figures take into account the announced divestment of Polyamides.