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

About Us

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.

Experienced company personnel perform all patent and trademark research, on-site at the US Patent and Trademark search facilities in Alexandria, Virginia.