What is the fine-grained topic of the following text: We represent mainly an Italian renowned company, which is the company CARMINATI SERRAMENTI from Bergamo (IT), which is not only a father to son carpentry for a century, but in addition, they made their fame thanks to the patent for their window « Skyline” which is requested worldwide. Only return the topic.
Representation and worldwide recognition of CARMINATI SERRAMENTI's "Skyline" window patent.