I don't have exact statistics on that. It's possible that they are available at the Canadian Intellectual Property Office. Generally we know that Canada is lower in patenting than most countries.
The Canadian Chamber of Commerce produces a report on innovation. There's a comparison of countries, and the three main markets are the United States, Japan, and the EU, and more and more in China. Canada is always at the low end of the graphs in terms of per capita or per investment or per investment in R and D in terms of patent filing.
I don't know specifically about manufacturing, but there's the likelihood that it probably fits that overall picture.