This page contains all the U.S. trademarks filed by LOUIS C. CHENG,. The list below is generated based on trademark correspondent identification information provided to the United States Patent Office (USPTO). is a free search engine of publicly available government records. does not represent correspondent listed on this page.

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Goods and Services: Telecommunication services, namely, providing VOIP services
DEAD (Circa: 2004)


Goods and Services: Telephone apparatus, namely computer telephony software that enables telephone activities to ...
DEAD (Circa: 2003)