The USPTO exam — officially the Examination for Registration to Practice in Patent Cases, and commonly called the patent bar — is the test an individual must pass to become a registered patent practitioner authorized to prosecute patent applications before the United States Patent and Trademark Office.
It is not the same as “patent examination,” the process by which a USPTO examiner reviews a filed application for novelty, obviousness, and eligibility (that process is covered separately in CASRAI’s guides on patent filing and prosecution costs and patent novelty under 35 U.S.C. § 102). This guide covers the registration examination itself: who is eligible to sit for it, what it tests, what it costs, and — because CASRAI’s audience is research administrators rather than aspiring patent agents — why registration status is something a technology transfer office (TTO) needs to understand when it engages, hires, or evaluates outside patent counsel.
What is the USPTO registration examination?
Formally, it is the Examination for Registration to Practice in Patent Cases Before the United States Patent and Trademark Office. Passing it — combined with meeting a technical/scientific background requirement and a moral-character review — is what allows a person to represent inventors in front of the USPTO: filing applications, responding to office actions, and otherwise conducting the back-and-forth with an examiner that is generally called patent prosecution. The exam itself tests familiarity with USPTO procedure, not scientific or engineering knowledge: candidates are examined on the Manual of Patent Examining Procedure (MPEP), the patent statutes (35 U.S.C.), USPTO regulations (37 CFR), and the USPTO’s rules of professional conduct for practitioners. The USPTO’s Office of Enrollment and Discipline (OED) administers registration, oversees the exam, and enforces practitioner discipline.
Who can sit for the exam: the technical-background categories
Before anyone can register for the exam, the USPTO requires proof of a scientific or technical background, evaluated under one of several categories set out in the USPTO’s General Requirements Bulletin. These are the commonly used pathways:
| Category | Basis for eligibility |
|---|---|
| Category A | A bachelor’s, master’s, or Ph.D. from an accredited U.S. institution (or recognized foreign equivalent) in a technical subject the USPTO accepts outright — for example biology, chemistry, computer science, most engineering disciplines, or physics. |
| Category B | A degree in a different subject, satisfied instead by documenting a specified number of semester hours of qualifying coursework in physics, chemistry, biology, or related science subjects. |
| Category C | Passing scores on the Fundamentals of Engineering (FE) exam, combined with a bachelor’s degree, used as an alternative evidence path where the degree itself doesn’t fall cleanly into Category A. |
| Category D | A more recently established, narrower pathway limited to design patent practice only, based on a degree in a recognized design-related subject — this does not confer authority to prosecute utility patent applications. |
Exact accepted degree lists and coursework thresholds are set out in the USPTO’s General Requirements Bulletin (GRB) and are revised periodically, so anyone actually applying should confirm current requirements against the live GRB on uspto.gov rather than relying on a secondary summary — this is exactly the kind of detail that changes without much notice and is easy to get wrong from memory.
Exam format and passing score
Per the USPTO’s own applicant guidance, the exam consists of 100 multiple-choice questions, of which 90 are scored and 10 are unscored “beta” questions used by the USPTO to evaluate future exam content (candidates aren’t told which 10). A candidate needs to answer 70% of the scored questions correctly — 63 of 90 — to pass. The exam is computer-based, delivered at Prometric test centers nationwide, and offered year-round on a date and time the applicant selects rather than on fixed administration dates. Unofficial results are provided immediately after the exam; a candidate who does not pass may request a review of the incorrect scored answers within 60 days, under 37 CFR § 11.7(e).
What it costs to sit for the exam
Based on the USPTO’s current published fee schedule for practitioner registration, the fees to apply for and sit the exam are:
| Fee | Amount | When it applies |
|---|---|---|
| Application fee | $118 | Filing the application to sit for the exam |
| Registration examination fee | $226 | Scheduling the exam itself |
| Prometric examination administration fee | $221 | Paid to the third-party test administrator, Prometric |
| Registration/limited-recognition grant fee | $226 | Paid only after passing, to complete registration |
| Review session (optional, if not passed) | $300 | To review incorrect scored answers |
That puts the cost to sit for the exam at roughly $565 (application + exam + Prometric fees), and the total cost of becoming a registered practitioner, if the exam is passed on the first attempt, at roughly $790. These figures reflect the USPTO’s own fee schedule as published on uspto.gov and are subject to periodic revision — confirm the current schedule before budgeting or advising an inventor or trainee on cost.
Patent attorney vs. patent agent: what passing the exam actually authorizes
Passing the registration exam does not by itself make someone a “patent attorney.” It makes them a registered patent practitioner, and which specific title they receive depends on whether they are also a licensed attorney:
- Patent attorney — a person who is both a member in good standing of a state bar (verified with a certificate of good standing from that state’s highest court) and a registered USPTO practitioner. A patent attorney can prosecute patent applications before the USPTO and provide general legal advice, draft and negotiate licensing or assignment agreements, and represent a client in federal court patent litigation (subject to that specific court’s own admission rules).
- Patent agent — a person who has passed the registration exam and met the technical-background requirement but is not a licensed attorney. A patent agent can prosecute patent applications before the USPTO on the same footing as a patent attorney for that specific function, but cannot give general legal advice, cannot represent a client in court, and is generally not the right choice for drafting the licensing, assignment, or sponsored-research agreements that sit around a patent rather than the application itself.
Both categories appear together on the USPTO’s public roster once registered — the exam and the underlying technical-background requirement are the same for both; the attorney/agent distinction is purely about whether the person also holds a separate state law license.
Why this matters for research institutions and technology transfer offices
CASRAI’s audience is more likely to be evaluating or working alongside patent practitioners than sitting for the exam themselves, but the distinctions above have practical consequences for a TTO:
Verifying a practitioner’s registration status
Before engaging outside patent counsel — or when a self-described “patent consultant” or invention-promotion firm approaches a faculty inventor directly — a TTO can and should confirm registration status. The USPTO’s Office of Enrollment and Discipline maintains a public roster of registered patent attorneys and agents, searchable through USPTO’s patent practitioner resources. Confirming a registration number and that a practitioner is in good standing (not suspended or excluded by OED) is a low-cost due-diligence step before signing an engagement letter, and it’s the single most direct way to distinguish a legitimate registered practitioner from an unregistered “invention promotion” service, a category the USPTO and FTC have both warned inventors about separately from anything covered here.
Matching the practitioner to the task
Because patent agents cannot provide general legal advice or represent the institution in litigation, a TTO that uses in-house or contract patent agents for routine prosecution work still needs attorney involvement for licensing negotiation, infringement disputes, and anything requiring representation in court. Institutions that budget for outside patent counsel should track which invoices reflect attorney-rate work versus agent-rate work, since agent time is typically billed at a lower rate for the same prosecution tasks an attorney could also perform.
In-house patent agents
Some larger TTOs employ a registered patent agent directly, often a staff member with a relevant technical degree, to handle routine prosecution and reduce reliance on outside counsel for lower-complexity filings. Understanding the eligibility categories above is directly relevant to that hiring decision — a candidate’s technical degree needs to clear Category A or B (or FE-exam-based Category C) before they are even eligible to sit for the exam, independent of whether the institution ultimately supports them through exam preparation.
If you meant “patent examination” instead
If what you’re actually looking for is how the USPTO examines a filed patent application — office actions, prior art rejections, responses, and allowance — that’s a different topic from the registration exam covered above, and CASRAI covers it elsewhere: see 35 U.S.C. § 102 and novelty for what an examiner checks a filing against, provisional patent applications for the filing that often precedes formal examination, and cost of filing a patent for what USPTO examination fees actually cover.
Frequently asked questions
Is the patent bar exam hard to pass?
The USPTO does not publish an official current pass rate, and third-party estimates vary and change over time, so CASRAI does not cite a specific number here. What is well established is the format: 90 scored questions covering the MPEP, patent statutes, and USPTO regulations, with a 70% passing threshold — most candidates prepare with dedicated study materials before sitting for it rather than relying on general patent-law familiarity.
Do you need a law degree to take the USPTO exam?
No. A law degree is not required to sit for the registration exam or to become a registered patent agent — what’s required is meeting one of the technical-background categories above. A law degree (plus state bar admission) is only required for the separate “patent attorney” designation.
Can a patent agent draft a licensing agreement for a university TTO?
Generally no. Drafting and negotiating a licensing, assignment, or sponsored-research agreement is general legal work outside the scope of what registration as a patent agent authorizes; that work should go to a licensed attorney, whether or not that attorney is also a registered patent practitioner.
How is the registration exam different from a state bar exam?
They test entirely different bodies of law and are administered by entirely different bodies. A state bar exam (administered by a state’s own bar authority) tests general legal competence for that state’s licensed practice of law. The USPTO registration exam, administered by USPTO’s Office of Enrollment and Discipline, tests only USPTO procedure, patent statutes, and USPTO regulations, and only confers authority to practice specifically before the USPTO in patent matters — not to practice law generally.
