Patent Maintenance: How to Avoid Losing Your Patent to Nonpayment

USPTO utility patents require three maintenance fee payments: the first due 3.5 years after the grant date, the second at 7.5 years, and the third at 11.5 years, and all three must be paid for the patent to remain in force through its twentieth year. Each window consists of a standard six-month payment period followed by a six-month surcharge period, and a patent not paid within either period lapses automatically without further notice.

Patent counseling and intellectual property counsel can advise on the USPTO maintenance fee schedule, assess whether the patent qualifies for entity discounts, and develop the maintenance payment strategy.

Patent prosecution and portfolio management and intellectual property registration counsel can advise on maintenance obligations across the portfolio and develop the fee scheduling and budget planning strategy.

A patent owner qualifies as a small entity if it is an independent inventor, a small business with no more than 500 employees, or a nonprofit, and small entity status reduces USPTO maintenance fees by fifty percent. Micro entity status, which reduces fees by eighty percent, additionally requires not having been named on more than four prior U.S. .atent applications and having gross income in the prior year at or below three times the median U.S. .ousehold income.

Patent counseling and prosecution and technology patent law counsel can advise on small and micro entity qualifications, assess the documentation requirements, and develop the entity status verification and fee reduction strategy.

If a maintenance fee is not paid within the six-month surcharge window, the patent lapses automatically at the end of that period without further notice, and from that date the patent is no longer in force and cannot be asserted against anyone who makes, uses, or sells the claimed invention. A lapsed patent becomes public domain, and the patent owner loses all rights to royalties or injunctive relief for infringement occurring after the lapse date.

Patent prosecution and portfolio management and patent counseling counsel can advise on the legal status of a patent whose fee has not been paid, assess whether it is within the surcharge window or has lapsed, and develop the payment or revival strategy.

The commercial consequences of patent lapse depend on the patent's role in the owner's business and its existing license agreements, and a lapsed exclusivity patent allows competitors to enter the market without a license while ceasing to generate royalties for post-lapse infringement. Existing license agreements typically address lapse, and a licensee may have a contractual right to a royalty reduction or termination, making patent lapse a potential contract issue in addition to its effect on competitive exclusivity.

Patent infringement litigation and technology licensing and IP transactions counsel can advise on the consequences of a lapsed patent, assess the impact on licensees, and develop the post-lapse IP strategy.

A patent owner whose utility patent has lapsed may file a petition to revive by paying the overdue fee, applicable surcharge, and a petition fee, and submitting a statement that the delay was unintentional. If the USPTO grants the petition, the patent is restored to in-force status as though it had never lapsed, with the caveat that an intervening right may have accrued to any party who began practicing the invention during the lapse period in reasonable reliance on the patent's lapsed status.

Patent counseling and patent prosecution and portfolio management counsel can advise on the petition to revive process, assess whether the delay was unintentional, and develop the revival petition and declaration strategy.

A petition to revive must be filed within three years of the date the maintenance fee was due, and petitions filed after this period are permanently barred. The petition must include a statement signed by someone with firsthand knowledge that the delay was unintentional, meaning the owner did not deliberately decide to allow the patent to lapse, and the USPTO may request additional information if the statement does not sufficiently establish that the delay was genuinely unintentional.

Patent counseling and prosecution and intellectual property counsel can advise on the deadlines and limitations on revival, assess whether the patent is within the revivable window, and develop the revival filing strategy.

International patents are maintained through annual annuity payments starting one or two years after the national phase filing date, and amounts increase each year in most major jurisdictions including the European Patent Office member states, Japan, China, South Korea, and Canada. Most national annuity systems require a locally authorized patent agent, and failure to pay an annuity results in lapse in that jurisdiction only without affecting the patent's status elsewhere.

Intellectual property registration and technology licensing counsel can advise on annuity schedules and local agent requirements, assess the total international maintenance cost, and develop the jurisdiction prioritization and annuity payment strategy.

A company managing a significant patent portfolio should use a professional docketing system that automatically calendars all maintenance fee and annuity deadlines, sends advance alerts at ninety, sixty, and thirty days, and tracks entity status and discounts for each patent. The most effective approach assigns each patent to a named attorney, conducts an annual portfolio review to decide which patents to abandon based on commercial value, and documents the business rationale for each abandonment decision.

Patent prosecution and portfolio management and corporate compliance and risk management counsel can advise on systems for managing maintenance obligations, assess whether current docketing is sufficient, and develop the portfolio management and renewal compliance program.