How to evaluate an IP law firmReviewed 9 November 2026
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Glossary

Patent attorney
A lawyer admitted to a state bar who has also passed the patent bar and is registered with the USPTO.
Patent agent
A non-lawyer registered by the USPTO to prepare and prosecute patent applications.
Patent prosecution
Preparing, filing and arguing a patent application before the USPTO until it is granted or abandoned.
Trademark
A word, phrase, symbol or design that identifies the source of goods or services.
Trade secret
Valuable business information protected by being kept secret rather than registered.
Registration number
The number the USPTO assigns to each registered patent attorney and agent; it can be checked in the USPTO's practitioner search.
USPTO
The United States Patent and Trademark Office.