Patent Searching at a US Patent & Trademark Library

The following tips and strategy is provided for those who will be going to a United States Patent and Trademark Depository Library (PTDL) to perform a more thorough patent search.

Read about research at www.inventionconvention.com/ncio/inventing101/017.html

State PTDLs are listed at www.inventionconvention.com/ncio/inventing101/018.html

Zen Engineering
3786 La Crescenta Avenue, Suite 107
Glendale, CA 91208 USA

Phone: (818) 957-7939

Services:
To request services, please fill in our Service Request.
Or contact Julie Pellicci at (818) 957-7939.

Books Feedback:
Regarding books, please forward any comments.

Newsletter / Email Subscription:
To subscribe to our Newsletters, please visit our Subscription page.
To be removed, select remove subscription at the bottom of the newsletter email you received.

General Inquiries:
Please use the form at our Contact page.

© Copyright Zen Engineering, Inc. All Rights Reserved.
The information and images in this website are presented for demonstration purposes only.
ZEN ENGINEERING, et al, and the Japanese art/water-drop logo are trademarks owned by Zen Engineering.
All images and concepts are copyright protected. All other trademarks are the property of their respective owners. Privacy...