Is trademark marketing prior to the product marketing or vice versa? Why?

Trademark marketing has to be done prior the product marketing. It is very important stage of the marketing process is creating value and building the Trademark/ Brand.

As known the marketing is a massive process which includes several activities one of them Building the Brand for the new product & service even before starting of the product manufacturing and service presenting. Generate good ideas in the consumers and customers minds about the new product and service will give value and grow right backgrounds about the new product's benefits, features and characteristics before the purchasing.

I think that the trademark building in earlier stage is essential to facilitate the marketing process later and eventually realize the success in the selling of the new product and service without difficulties and obstacles. 

Awareness of the logo itself is very important. (the Apple Inc. apple logo for instance) 

With positive attitude towards the trademark comes a great volume of sales.