The number of patent applications published in 2016 or that entered national phase in Canada in 2016 were up slightly over 2015 at about 34,400 application. Smart & Biggar, Gowlings and Norton Rose Fulbright Canada top the list of firms by volume of applications.
The number of applications filed without the services of an agent was up to 619 applications, approximately 1.8% of applications.

Because patent applications are not typically published for 18 months after they are filed, the data used for this report is based on applications published in 2016. Many of these applications were filed 18 months earlier, perhaps as early as 2014. For national phase entry applications, these are typically published shortly after entry into Canada but may have an international filing date 30 or even 42 months earlier.

For comparison, see a similar list for 2015. I have previously prepared similar lists for trademark applications.