Patent prosecution and patent litigation are two career tracks inside patent law, and they are different jobs with different entry requirements.
A patent prosecutor obtains patents: drafting applications and steering them through examination at the U.S. Patent and Trademark Office (USPTO), on top of USPTO registration and the science or engineering qualification it requires.
A patent litigator handles patent disputes in court, where the law license is the working credential — our research found no USPTO registration requirement for courtroom work.
Here is how the two careers compare.
What does a patent prosecutor do?
Patent prosecution is the work of obtaining patents.
The career in one sentence: take an invention, describe it in a patent application whose claims define its legal boundary, and carry that application through the USPTO's examination process until the patent issues or the route ends.
It is a writing practice — the application, and every exchange with the patent office about it, is where the advocacy happens.
Registration to practice before the USPTO defines who can do the work.
Under 37 CFR 11.7, registering — as a patent attorney or a patent agent — requires showing the legal, scientific and technical qualifications and passing the registration exam, unless the exam is waived.
The exam is open to non-lawyers: passers who are not attorneys in good standing are registered as patent agents rather than patent attorneys.
Prosecution work can sit with either: both are registered to practice before the USPTO after the same exam, but in different categories — patent agent or patent attorney.
Prosecution also carries its own conduct layer: practitioners before the USPTO are subject to the USPTO Rules of Professional Conduct, set forth in 37 C.F.R. § 11.101 et seq.
Prosecution is one lane of the broader intellectual property attorney career — the trademark, copyright and licensing lanes sit alongside it.
That guide covers the umbrella; this page stays on prosecution and litigation.
What does a patent litigator do?
Patent litigation is the dispute side of patent law: a product reaches the market, a patent holder says it infringes, and the accused company answers that the patent is invalid or does not cover the product.
The litigator's calendar runs on that conflict — pleadings, written discovery, depositions, expert work, motion practice and trial preparation — applied to deeply technical subject matter.
The credential story is the mirror image of prosecution's.
The baseline is the one the Bureau of Labor Statistics describes for lawyers generally: a law degree and a state license, which usually requires passing a bar examination.
The USPTO registration exam is not part of that baseline — registration under 37 CFR 11.7 is the credential for practice before the USPTO, and our research found no separate registration requirement for courtroom patent litigation.
What a firm wants a patent litigator to bring — a technical degree, prior courtroom work, a clerkship, or none of these — is set posting by posting, so read each job description and ask.
Patent litigation is a specialization inside the wider courtroom career: what a litigation attorney does covers that career in general, from the case types to the skills litigation builds.
Science background requirements
The Bureau of Labor Statistics draws the line at the occupation level: patent lawyers typically need a degree, specific credits, or a background in science or engineering — and must pass an exam administered by the U.S. Patent and Trademark Office.
The specific rules live with the USPTO, and they decide who can register — and under which category.
Which degrees qualify.
The USPTO's General Requirements Bulletin, issued August 2026, lists Category A degrees that qualify on their own — biology, chemistry, physics and most engineering fields among them; computer science counts only as a B.S. from an accredited school.
Applicants without a Category A degree can qualify under Category B (equivalent science or engineering coursework) or Category C (passing the Fundamentals of Engineering exam, plus a bachelor's degree).
Category D allows design-patent practice only.
The exam itself.
The registration exam — informally, the patent bar:
- 100 multiple-choice questions, of which 90 are scored and 10 are unscored beta questions
- a passing score of 63 of the 90 scored questions — 70%
- two three-hour sessions of 50 questions each, by computer at Prometric test centers year-round, with the MPEP available on screen
- source materials including MPEP Ninth Edition, Revision 01.2024 — the USPTO updated the exam on September 23, 2026
- fees of $118 (USPTO application — $1,806 if you disclose moral character issues), $226 (USPTO examination), $221 (Prometric administration) and $226 (registration after passing)
- unofficial results at the test center, official results generally within 5 business days, and registration typically issuing about 3 months after passing, after a moral character review
One number we cannot give you: the pass rate.
The USPTO's exam statistics were not captured in our research, so treat any pass-rate figure you see quoted as unverified and check the USPTO's own statistics page.
The title, too, is a rule.
Under Ohio Rule 7.4(b) — the state-adopted version of the ABA Model Rules that our research read, as amended January 1, 2026 — a lawyer admitted to engage in patent practice before the USPTO may use the designation "Patent Attorney."
States adopt the model rules with variations, so confirm your own state's version before putting a designation on a business card.
For litigators, our research found no USPTO registration requirement for courtroom patent litigation — so no technical-qualification category and no patent bar to pass for the courtroom itself.
The baseline stays the one already named: a law degree and a state license.
A science background can still shape a patent litigator's career — the disputes turn on technology — but it enters through what firms ask for, not through a registration rule.
USPTO rules change — check them before you plan around this
Hours, billing and demand
Start with what the federal data can and cannot say.
The Bureau of Labor Statistics counted about 863,700 lawyer jobs in 2025 — all lawyers, one occupation — and our research found no split of that count by practice area.
There is no verified headcount, market share or growth figure for patent prosecution or patent litigation specifically: anyone quoting a "share of lawyers in IP" or a patent-specific employment projection is pointing at a number that, as far as our research found, no primary source publishes.
Billing is the same story.
Our research found no patent-specific hours figures or billing-rate data, so this page will not quote an hours expectation for either track.
The mechanics of law-firm billing — what a billable hour is, how utilization and realization work — are their own topic, and our guide to billable hours covers them.
The practical takeaway for a student choosing between the tracks: the differentiators you can verify are the credentials in the section above, and the hours-and-compensation picture is best collected firsthand.
Ask hiring firms what a first-year docket looks like and what the billable expectation is — the question costs nothing, and the answers are the firm's to give.
No verified patent-specific numbers here
Where to find intellectual property attorney jobs
Openings for both tracks live on the intellectual property attorney jobs board.
Listings change as firms post and fill roles; the board shows today's openings, and this guide explains the two careers those postings describe.
Use the credential divide as your filter when you read postings: a role built around USPTO registration is prosecution work, and the eligibility categories and exam in the section above are its entry price; a role built around the courtroom is litigation.
Each posting states what that firm wants — treat the posting as the authority on the firm's role, and the USPTO as the authority on the registration itself.
Career information, not legal advice. Registration requirements for patent practice are set by the USPTO, and the license to practice law is issued state by state. Confirm the current rules with the USPTO and your state's bar admission authority before you make career decisions on them.