A first-timer's guide, from application to resultsReviewed 9 November 2026
The Patent Bar ExamWysebridge Reference Check if you qualify

Glossary

Patent bar
The USPTO's Examination for Registration to Practice in Patent Cases.
MPEP
Manual of Patent Examining Procedure, the USPTO's examiner manual and the only reference allowed on the patent bar.
Prometric
The testing company that delivers the patent bar at its test centers.
OED
The USPTO's Office of Enrollment and Discipline, which approves exam applications, registers practitioners and handles discipline.
Category A
USPTO eligibility route for applicants with a listed science or engineering degree.
Category B
USPTO eligibility route for other degrees backed by qualifying science and engineering coursework.
Category C
USPTO eligibility route through passing the Fundamentals of Engineering exam.
Registration number
The number the USPTO assigns to each registered patent attorney and agent; it can be checked in the USPTO's practitioner search.
Patent agent
A non-lawyer registered by the USPTO to prepare and prosecute patent applications.
Patent attorney
A lawyer admitted to a state bar who has also passed the patent bar and is registered with the USPTO.