Ebooks (Sách điện tử)Authors : Schuster, Michael (-)
What are Patents, Trademarks, Servicemarks, and Copyrights Some people confuse patents, copyrights, and trademarks. Although there may be similarities among these kinds of intellectual property protection, they are different and serve different purposes. Policy Behind Patent Laws: Congress created the patent system under a constitutional mandate, stating that such a system can be enacted “To promote the Progress of Science and useful Arts.” This promotion of ... 
