This paper presents an analysis of the effect of international co-authorship of scientific publications on patenting in wind energy technologies. It is found that the number of scientific publications co-authored by researchers in OECD countries has a positive and very significant impact on the number of wind energy innovations patented in OECD countries. However, non-OECD countries produce a greater number of patent filings when their researchers collaborate with OECD countries. This suggests that there exist knowledge spillovers between OECD and non-OECD countries that particularly benefit non-OECD countries. This empirical finding is important because it strengthens the case for international research cooperation between OECD and non-OECD countries in the area of climate mitigation.