Etiquette for attribution when applying concepts in industry
You don't need to do anything. Academic journals are published for the betterment of mankind. If you acquired said articles legally, then you are entitled to use their contents within your corporation as you see fit as long as you do not directly copy and distribute text or software code that is under copyright without a license. If you reimplement an algorithm described in a paper, you are fine. The only problem may come if you try to implement something covered under a patent (like the RSA patent), but these kinds of things are not typically published in journals these days.

There are more reasons that academic publish than encouraging more published work. When I publish, I hope that my ideas are used by any and all to fulfill their own goals. When I want specific kinds of returns on my work, I will choose other avenues of dissemination than publishing in conferences and journals. 

There's no ethical issue here, in my opinion.