Patent Attorney David S Barnhill

USPTO Data

USPTO data is frequently out of date. You can update your information at the USPTO OED website.

Reg. No.:72376
Firm/Company:Chang & Hale LLP
Address:Irvine, CA 92612
Last Updated:2026-10-02

Public Data

This information is obtained from searching the Internet and may be out of date or incorrect.

Firm/Company: Chang & Hale | Intellectual Property Law
Other info: LinkedIn Profile
Firm Profile
Last Updated:2026-10-07

Top Applicants

This practitioner has been affiliated with the following applicants over the past 10 years.

Applicant Count
EDWARDS LIFESCIENCES CORPORATION 3627
Skyworks Solutions, Inc. 1024
Edwards Lifesciences CardiAQ LLC 101
Edwards Lifesciences Innovation (Israel) Ltd. 87
VIASAT, INC. 71
Valtech Cardio, Ltd. 49
BOURNS, INC. 38
Auris Health, Inc. 37
LIFE PATCH INTERNATIONAL 31
W. L. Gore & Associates, Inc. 30
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