Does a biosystems engineering degree qualify?

Biosystems Engineering is not printed in the bulletin, so OED decides whether your transcript shows a degree equivalent to Agricultural Engineering or Bioengineering. Include course descriptions with the application.

Does an agronomy or agricultural science degree qualify?

Not under Category A. You would apply under Category B; Option 2 counts 8 semester hours of chemistry or physics plus 24 of biology, botany, microbiology or molecular biology.

Which USPTO Technology Center examines farm machinery patents?

Technology Center 3600. Its Group 3640 covers agriculture and plant and animal husbandry, and Group 3670 lists harvesters.

Patent bar eligibility by degree

Agricultural Engineering and the Patent Bar

Agricultural Engineering is a Category A subject in the USPTO General Requirements Bulletin. A bachelor's, master's or Ph.D. in agricultural engineering qualifies you to apply for the patent bar on your transcript.

Check your eligibility Full eligibility guide

At a glance

USPTO category: Category A
Listed subject: Agricultural Engineering
Degree levels: Bachelor's, master's or Ph.D.
Main Technology Centers: TC 3600

Checked against the August 2026 bulletin

Eligibility

Does an Agricultural Engineering degree qualify?

Yes. The USPTO General Requirements Bulletin (August 2026 edition) lists Agricultural Engineering in Category A, the degree-based route to the registration exam. An applicant with a bachelor's, master's or Doctor of Philosophy degree in a listed subject from an accredited U.S. college or university, or the foreign equivalent, meets the scientific and technical requirement without a course-by-course review.

The bulletin lists the subject as Agricultural Engineering. Many programs now use titles such as Biological and Agricultural Engineering or Biosystems Engineering; those names are not printed in the bulletin, so OED reviews them for equivalence. Bioengineering is a separate listed subject.

Your OED application

Exactly what to submit

An official transcript from the college or university that shows the degree was awarded. A transcript issued to you is accepted if it carries the school's stamp or seal.
Not a diploma or a letter. A diploma, a copy of a transcript or a registrar's letter naming your degree does not meet the requirement.
Course descriptions if the title isn't an exact match. If your degree title differs from the listed subject, OED checks equivalence; the OED FAQ suggests sending course descriptions with the first application to avoid delay.
Foreign degrees: objective evidence of U.S. equivalence, such as an evaluation from a foreign-credential evaluation service, alongside the transcript.

The rest of the application (forms, fees and the moral-character questions) is covered step by step in the OED application guide.

Practice

Patent work for agricultural engineering graduates

Registered practitioners usually draft and prosecute applications in the technology they trained in. In this field that means work such as:

Technology area	Example inventions
Harvesting and tillage machinery	Combine headers, residue spreaders, strip-till implements.
Precision agriculture	GPS-guided planters, variable-rate sprayers, yield mapping.
Irrigation and water management	Drip systems, center-pivot controls, soil-moisture scheduling.
Livestock and poultry systems	Automated milking, barn ventilation, feeding systems.
Crop drying and storage	Grain dryers, bin aeration and monitoring.

USPTO

Which Technology Centers examine this work

The USPTO routes each application to one of its Technology Centers by its classification. For agricultural engineering subject matter, these are the ones you will deal with most:

Technology Center	Why it applies
TC 3600 Transportation, Construction, Electronic Commerce, Agriculture, National Security and License and Review	Its Group 3640 covers agriculture and plant and animal husbandry, and Group 3670 lists harvesters.

Routing follows each application's classification, so a single application can land outside these centers.

Patent law

Field trials and experimental use

New equipment has to be tested in real fields, often on a farmer's land, before anyone files. Whether that testing is a disqualifying public use turns on the experimental-use doctrine (MPEP 2133.03(e)) and the one-year grace period in 35 U.S.C. 102(b)(1).

The registration exam itself tests patent law and USPTO procedure from the MPEP, not your technical field. See the patent bar exam overview for format and scoring.

Pay data

What the occupation pays

The U.S. Bureau of Labor Statistics reports a median annual wage of $98,590 for agricultural engineers as of May 2025 (BLS Occupational Outlook Handbook).

That figure is for the engineering or science occupation itself, not for patent agents or attorneys.

Other routes

If your degree title differs

Category A is matched on the subject your transcript names. Titles close to agricultural engineering are handled like this:

Biological and Agricultural Engineering, or Biosystems Engineering: Not printed in the bulletin. OED decides equivalence to Agricultural Engineering or Bioengineering; include course descriptions.
Agricultural Science, Agronomy or Agribusiness: Not on the Category A list. Category B applies; biology and botany courses count toward Option 2.
Agricultural Systems Technology or Agricultural Mechanization: Not listed. Category B or Category C (the FE exam) would apply.

If you don't qualify under Category A, Category B counts science and engineering coursework (courses for science or engineering majors, grade C- or better):

Option 1: 24 semester hours in physics (physics courses for physics majors).
Option 2: 32 semester hours: 8 in chemistry or physics plus 24 in biology, botany, microbiology or molecular biology.
Option 3: 30 semester hours in chemistry (chemistry courses for chemistry majors).
Option 4: 40 semester hours: 8 in chemistry or physics plus 32 in other listed science and engineering subjects.

Category C is for applicants with a bachelor's degree who pass the Fundamentals of Engineering (FE) exam. Run your transcript through Do I Qualify? for a quick check, then read the full eligibility guide.

FAQ