What Is the Patent Bar Exam?
The Patent Bar Exam (formally the Examination for Registration to Practice in Patent Cases Before the United States Patent and Trademark Office) is a 6-hour, 100-question multiple-choice licensing exam administered by the USPTO and Prometric that qualifies science and engineering graduates to practice as registered US Patent Agents or Patent Attorneys.
Key 2026 Takeaways at a Glance
- ✓ Format: 100 multiple-choice questions split into a 3-hour morning session (50 Qs) and a 3-hour afternoon session (50 Qs).
- ✓ Scoring: 90 questions are scored and 10 are unscored beta questions; you must answer at least 63 of the 90 scored questions correctly (70%) to pass.
- ✓ Reference Material: Open-book access on the testing computer to MPEP Ninth Edition, Revision 01.2024 (published November 2024).
Practice 35 U.S.C. 101 Eligibility Practice Questions (MPEP Rev. 01.2024 Cited)
Patent Bar Exam Structure & Prometric Testing Day Breakdown
The Patent Bar Exam does not test general state law, torts, contracts, or courtroom trial procedure. Instead, 100% of the examination tests federal patent law (35 U.S.C.), federal patent rules (37 CFR), and USPTO examination procedure set forth in the Manual of Patent Examining Procedure (MPEP).
On exam day at a Prometric testing center, your 6-hour testing window is divided into two distinct 3-hour halves separated by an optional 1-hour lunch break:
| Exam Component | Specification | Strategic Note |
|---|---|---|
| Morning Session | 50 Questions in 180 Minutes (3.6 min/question) | Once Morning ends, you cannot return to Morning questions in the Afternoon |
| Midday Break | Up to 60 Minutes (Optional) | You can leave the center, eat lunch, and review personal notes outside |
| Afternoon Session | 50 Questions in 180 Minutes (3.6 min/question) | Equal difficulty and MPEP chapter mix as the Morning session |
| Scored vs. Beta Questions | 90 Scored + 10 Unscored Pilot Questions | Beta questions are indistinguishable from scored items—treat all 100 seriously |
| Official Passing Score | 70.0% (63 / 90 Scored Questions) | Unofficial "Pass" result displays immediately on your Prometric screen at completion |
Who Takes the Patent Bar Exam?
Two groups sit for the USPTO Registration Examination: (1) non-lawyer scientists, engineers, and Ph.D. researchers who want to work as registered Patent Agents, and (2) law students and licensed attorneys with STEM degrees who want to become registered Patent Attorneys.
How This Topic Fits Into the 2026 USPTO Registration Examination Blueprint
Every question on the USPTO Patent Bar Exam traces directly back to three primary legal authorities loaded onto Prometric testing workstations: Title 35 of the United States Code (35 U.S.C. 101 Subject Matter Eligibility, 35 U.S.C. 102 Novelty & Prior Art, 35 U.S.C. 103 Obviousness, and 35 U.S.C. 112 Specification & Claims), Title 37 of the Code of Federal Regulations (37 CFR Parts 1, 11, 41, and 42), and the Manual of Patent Examining Procedure (MPEP Ninth Edition, Rev. 01.2024).
Prometric Exam Day Execution Checklist
During each 3-hour, 50-question Prometric session, you have exactly 3.6 minutes (216 seconds) per question. High-scoring candidates answer 35 to 40 questions on their first pass using memorized rules from MPEP 700, MPEP 200, MPEP 600, and MPEP 1800, and reserve the final 50–60 minutes to look up marked edge-case exceptions in the on-screen MPEP PDF viewer.
AIA vs. Pre-AIA & Deadline Verification Protocol
Before selecting an option on any Patent Bar question, run a three-point check: (1) check the effective filing date against the March 16, 2013 AIA transition date, (2) verify whether the deadline is extendable under 37 CFR 1.136(a) or non-extendable by statute (such as the 12-month provisional period, 6-month maximum reply cap, or 2-year broadening reissue rule in MPEP 1400), and (3) check whether the proceeding is before the examiner, the PTAB (MPEP 1200), or Ex Parte Reexamination (MPEP 2200).
To turn passive reading into a passing 70%+ score (63 out of 90 scored questions), pair this guide with active question drills in our Free 50-Question Practice Hub, review worked hypotheticals on our Example Questions page, and benchmark your lookup speed in the Timed Patent Bar Mock Exam Simulator.
Frequently Asked Questions
Do you get your Patent Bar score immediately after finishing at Prometric?
Yes. Immediately upon completing the afternoon session of the computer-based exam at Prometric, the screen displays an unofficial preliminary result indicating whether you passed. If you do not pass, the USPTO mails your numerical scaled score and diagnostic report.
Are there any essay or claim-drafting questions on the Patent Bar?
No. Since the USPTO eliminated the claim-drafting essay section over two decades ago, the Patent Bar Exam has been 100% multiple-choice.
Related Patent Bar Guides
- What Is on the Patent Bar Exam? →See exactly what is on the 2026 USPTO Patent Bar Exam: MPEP Ninth Edition Rev. 01.2024 chapter weights, 35 U.S.C. 101/102/103/112, prosecution, PCT & PTAB appeals.
- Patent Bar Exam Requirements →Complete 2026 USPTO Patent Bar Exam requirements: technical degree categories (A, B, C), official transcripts, moral character evaluation, ID & fees.
- Patent Bar Exam Cost & Fees (2026) →How much does the Patent Bar Exam cost in 2026? See the exact mandatory USPTO OED fees ($110 + $210 + $210), Prometric seat fee ($255), and prep costs.
- Patent Bar Exam Pass Rate →What is the Patent Bar Exam pass rate? Explore historical USPTO OED pass rates (45%–52%), why over half of STEM grads fail, and how to score above 70%.
Practice Questions by MPEP Topic
- 35 U.S.C. 101 Eligibility 35 U.S.C. § 101 & MPEP §§ 2104–2107 →
- 35 U.S.C. 102 Novelty 35 U.S.C. § 102 & MPEP §§ 2117–2159 →
- 35 U.S.C. 103 Obviousness 35 U.S.C. § 103 & MPEP §§ 2141–2146 →
- 35 U.S.C. 112 Specification 35 U.S.C. § 112 & MPEP §§ 2161–2186 →
- MPEP 700 Examination MPEP Chapter 700 & 37 CFR §§ 1.104–1.138 →
- MPEP 600 Application Parts MPEP Chapter 600 & 37 CFR §§ 1.51–1.99 →