The main specialty and interests of the Law Offices of Pujie Zheng is built around two areas: engineering (including electrical engineering, computer engineering, Internet, e-commerce, software engineering, mechanical engineering) and biological sciences (including biotechnologies, chemicals and pharmaceuticals). With our strong physics background, we are specially well-suited for many interdisciplinary fields such as nanotechnologies. Click here for the breakdown of different disciplines that we cover.


While patents protect the ideas, trademarks protect the sources, i.e., the brand names. It is the integral part of the intellectual property protection. Unlike patent, trademark protection does not require registration with the USPTO, although registration does have some definite benefits. Click here for further explanation of trademarks.


Copyright protects the authorship of ¡°original works of authorship,¡± including literary, dramatic, musical, artistic, and certain other intellectual works from unauthorized reproduction or production of derivative works. This protection is available to both published and unpublished works. Copyright is handled by the Copyright Office of the Library of Congress.