There is no one better or more honest in the business than the Greentree team,”
writes inventor/author
Richard C. Levy
in his
Complete Idiot’s Guide
to Cashing In on Your Inventions
.

Welcome to Greentree Information Services

Greentree Information Services is a patent and trademark research company based in the
Washington D.C. area since 1992. We offer confidential and timely patent and trademark
research services.




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