Entity Size & USPTO Fee Discounts

Small entity status at the USPTO allows qualifying applicants and patent holders to pay 50% of the normal (large entity) patent fees. This applies to most USPTO fees including: filing fees, search fees, examination fees, excess claim fees, issue fees, maintenance fees, RCE fees, and appeal fees. Who qualifies as a small entity: (1) individual inventors who have not assigned, and are not obligated to assign, their rights to a large entity; (2) small business concerns — companies with 500 or fewer employees (counting affiliates under the SBA's criteria); (3) nonprofit organizations — universities, colleges, research institutions, and 501(c) nonprofits that meet the definition. WHO DOES NOT QUALIFY: (a) Any individual, company, or nonprofit that has assigned, granted, conveyed, or licensed, or is under an obligation to assign, grant, convey, or license, any rights in the invention to an entity that would not qualify as a small entity. This is the critical rule: if your invention is licensed to or assigned to a large company (or you have a contractual obligation to do so), you cannot claim small entity status even if you yourself are an individual inventor with low income. How to claim small entity status: simply assert it in writing (Form SB/298 or by written statement in the application papers or in the fee transmittal form). A verified statement is required for micro entity (not required for basic small entity). The savings: on a typical utility patent, small entity status saves: approximately $600–$900 in filing/search/exam fees; approximately $600 in issue fees; approximately $2,875 in maintenance fees over the full 20-year term. Total savings can easily exceed $5,000–$8,000 for a single patent.

Micro entity status provides an 80% discount on USPTO patent fees (paying only 20% of large entity fees). There are two independent paths to qualify. Path 1 — Gross Income Basis (37 C.F.R. § 1.29(a)): the applicant must satisfy ALL FOUR of the following: (1) Qualify as a small entity under 37 C.F.R. § 1.29(a)(1) — the same 500-employee / no-large-entity-obligation test as for regular small entity; (2) Have not been named as inventor on more than 4 previously filed US non-provisional patent applications (not counting provisional applications; not counting international PCT applications filed before entering US national stage; co-inventors' prior applications count if they are joint inventors on this application); (3) Have a gross income that did not exceed 3 times the US median household income in the year preceding the year of filing — for FY2024, this threshold is approximately $247,000 (the USPTO adjusts annually); (4) Have not assigned, granted, or licensed (and not be obligated to do so) to any entity whose gross income exceeded the same threshold in the year before the application. Path 2 — Institution of Higher Education Basis (37 C.F.R. § 1.29(d)): the applicant has assigned or is obligated to assign all rights in the application to an institution of higher education as defined in 20 U.S.C. § 1001(a) — accredited colleges and universities. Under this path, the income limit and prior-application count do not apply. IMPORTANT DETAILS: (a) The prior application count of '4 or fewer' counts applications where the applicant was a named inventor — not applications where they were merely an assignee or owner; (b) Provisionals do NOT count toward the 4-application limit; (c) PCT applications that entered US national phase before this application DO count; PCT applications filed for the first time (before any US filing) do NOT count; (d) The income threshold applies to the individual inventor, not the company — if the applicant is a company, the income test cannot be satisfied; micro entity is available only to individual inventors meeting the income test, or to parties assigning to a qualifying institution.

Incorrectly claiming small entity or micro entity status — whether intentional or negligent — can have serious consequences. Unintentional errors: if you incorrectly claimed small entity status due to an honest mistake (for example, you misunderstood whether a licensing obligation disqualified you), you can often correct the error by paying the deficiency (the difference between the small entity fees paid and the large entity fees owed) and documenting the correction in the application file. The USPTO has procedures for handling good-faith errors. The key requirement: the error must be unintentional and the deficiency must be paid promptly after discovery. Intentional false claims: deliberately claiming small entity status when you know you do not qualify (for example, knowing you have assigned rights to a large company and claiming small entity fees anyway) is fraud on the USPTO. Under 35 U.S.C. § 123 (micro entity fraud) and inequitable conduct doctrine, intentional misrepresentation of entity size can: (1) result in the patent being held unenforceable for inequitable conduct in infringement litigation; (2) subject the practitioner to USPTO disciplinary proceedings (suspension or exclusion from practicing before the USPTO); (3) expose the applicant to civil penalties. The inequitable conduct standard: Therasense v. Becton Dickinson (Fed. Cir. 2011, en banc) requires 'but-for' materiality (the USPTO would not have granted the patent but for the misrepresentation) AND specific deceptive intent. A paperwork error in entity size alone rarely meets the Therasense standard, but a pattern of false entity status claims with evidence of intent is high-risk. Best practice: when in doubt about entity status, pay large entity fees. The cost savings from small entity status are not worth the risk of inequitable conduct if status is questionable.

Yes — entity size applies to maintenance fees as well as to all prosecution fees. Maintenance fees for issued utility patents are due at 3.5, 7.5, and 11.5 years from the grant date. The entity size that applies to each maintenance fee payment is the entity size AT THE TIME THE MAINTENANCE FEE IS PAID — not the entity size at the time the patent was filed or issued. This means: (1) if you were a small entity when you filed and obtained the patent, but your company has grown to more than 500 employees by the time the 3.5-year maintenance fee is due, you must pay the large entity maintenance fee rate; (2) conversely, if a large company acquires a startup's patents but that company itself qualifies as a small entity at the time of the maintenance fee, the small entity rate applies (assuming the assignment and all other criteria are met). How maintenance fees are paid: maintenance fees can be paid by the patent owner directly (pro se) or through a registered patent attorney/agent. Many patent owners use USPTO's patent maintenance fee system (available via USPTO.gov). Surcharges: USPTO allows a 6-month grace period after each maintenance fee deadline — the fee can be paid within 6 months of the deadline with a surcharge (small entity surcharge: $75; large entity surcharge: $160; micro entity surcharge: $37.50 approximately). After the 6-month grace period, the patent expires for failure to pay maintenance. USPTO has a separate process for petitioning to revive an unintentionally lapsed patent — fee applies and revival is not guaranteed.

Yes — institutions of higher education can qualify for micro entity status under the institution basis (37 C.F.R. § 1.29(d)), REGARDLESS of the income of the university or its researchers. This path to micro entity status does not require meeting the gross income test (3 × median household income) and does not require the inventors to have filed 4 or fewer prior applications. Requirements for the institution basis: (1) The applicant (the entity paying the fees) must be an institution of higher education as defined by 20 U.S.C. § 1001(a) — accredited US colleges and universities that are degree-granting; (2) The inventor must have ASSIGNED or be OBLIGATED TO ASSIGN all rights in the invention to that institution of higher education. If either element is missing (the institution is not accredited, or the inventor has retained any rights or has licensed to another entity), the institution basis for micro entity fails. Note: a university that has licensed the patent to a large company LOSES micro entity status for that patent — because the obligation to license to a large entity conflicts with small entity eligibility. Large research universities with extensive industry licensing programs may not qualify for small entity (or micro entity) status if their licensing arrangements include obligations to large entities. Practical example: a professor invents and assigns all rights to State University. State University files the patent. State University qualifies for micro entity under the institution basis, saving 80% of USPTO fees on filing, examination, issue, maintenance, and appeals. However, if State University has a standing technology transfer agreement with a large pharmaceutical company granting that company an option to license, State University's eligibility should be evaluated carefully — the option may constitute an 'obligation to license' that disqualifies small and micro entity status.