Provided by The National Office of Intellectual Property of Vietnam. In this web site you can search information on patent, industrial design, trade mark which is published un-examined or is granted.
Provided by The National Office of Intellectual Property of Vietnam, Digipat is a digital library for patents. The search engine belongs to a project that aims to provide the public with fulltexts of national patents.
Google Patents includes over 87 million patent publications from 17 patent offices around the world, as well as many more technical documents and books indexed in Google Scholar and Google Books