subsectionUpdated April 16, 2026

    FAR 27.203-1General.

    Plain-English Summary

    FAR 27.203-1 explains how the government handles patent applications that may contain classified subject matter and how it protects both national security and patent rights. It covers the risk of unauthorized disclosure of classified information in patent filings or issued patents, the contracting officer’s duty to determine the proper security classification of a patent application received under FAR 52.227-10, the requirement to tell the contractor how to transmit a classified application to the U.S. Patent Office through approved procedures, the special 30-day notification effort for applications classified Secret or higher, the duty to send contractor-provided information to legal counsel when the contractor reports filing-related information, and the need to act promptly on requests for approval to file patents in foreign countries. In practice, this section is about coordination: the contracting officer, legal counsel, and the contractor must move quickly and carefully so classified information is protected while valuable patent rights are not lost through delay. It is a security-and-timing rule set, not a substantive patentability rule, and it exists to prevent accidental disclosure, espionage-related violations, and avoidable loss of rights for either the Government or the contractor.

    Key Rules

    Classified disclosure is prohibited

    Unauthorized disclosure of classified subject matter in a patent application or in an issued patent may violate criminal espionage statutes and can harm national security. The rule applies whether the disclosure happens during filing or after the patent is issued.

    CO must determine classification

    When a patent application is received under FAR 52.227-10, the contracting officer must determine the proper security classification of the application. This is the first step in deciding how the application may be handled and transmitted.

    Provide filing instructions

    If the application contains classified subject matter, the contracting officer must tell the contractor how to transmit the application to the U.S. Patent Office using procedures supplied by legal counsel. The contractor does not decide the transmission method on its own.

    Secret and above get rapid notice

    If the material is classified Secret or higher, the contracting officer must make every effort to notify the contractor within 30 days of the Government’s determination under paragraph (a) of the clause. The timing requirement is intended to reduce delay and protect rights.

    Send contractor information to counsel

    When the contractor provides information under paragraph (d) of FAR 52.227-10, the contracting officer must promptly forward it to legal counsel. Counsel then takes the steps needed to protect the security of the application.

    Act quickly on foreign filing

    The contracting officer must promptly act on requests for approval of foreign filing under paragraph (c) of FAR 52.227-10. Delay can cause the Government or contractor to lose valuable patent rights in foreign jurisdictions.

    Responsibilities

    Contracting Officer

    Determine the proper security classification of any patent application received under FAR 52.227-10; inform the contractor how to transmit a classified application to the U.S. Patent Office using legal-counsel procedures; make every effort to notify the contractor within 30 days when the material is Secret or higher; promptly forward contractor-submitted information to legal counsel; and act promptly on foreign filing approval requests.

    Contractor

    Submit patent applications and related information in accordance with FAR 52.227-10 and follow the transmission procedures provided by the contracting officer and legal counsel when the application contains classified subject matter. The contractor must also seek approval before foreign filing when required by the clause.

    Legal Counsel

    Provide the procedures for secure transmission of classified patent applications and take the necessary steps to ensure the security of the application once the contracting officer forwards contractor-provided information.

    Agency/Government

    Protect classified subject matter, coordinate security determinations and patent-processing actions, and avoid delays that could compromise national security or patent rights.

    Practical Implications

    1

    Contracting officers need a fast internal workflow between security personnel and legal counsel; waiting for a routine administrative review can jeopardize both classification control and filing deadlines.

    2

    Contractors should not assume a normal patent filing process applies when classified subject matter is involved; they must follow the government-directed secure transmission path exactly.

    3

    Foreign filing requests are time-sensitive. Even short delays can affect novelty, priority, or foreign filing deadlines, so COs should treat these requests as urgent.

    4

    A common pitfall is failing to recognize that a patent application can itself contain classified information even if the underlying invention is otherwise contract-related and technically ready for filing.

    5

    This section is about coordination and timing, not just secrecy: poor communication can lead to unauthorized disclosure, criminal exposure, or loss of patent rights for either party.

    Official Regulatory Text

    (a) Unauthorized disclosure of classified subject matter, whether in patent applications or resulting from the issuance of a patent, may be a violation of 18 U.S.C. 792 , et seq . (Chapter 37-Espionage and Censorship), and related statutes, and may be contrary to the interests of national security. (b) Upon receipt of a patent application under paragraph (a) or (b) of the clause at 52.227-10 , Filing of Patent Applications-Classified Subject Matter, the contracting officer shall ascertain the proper security classification of the patent application. If the application contains classified subject matter, the contracting officer shall inform the contractor how to transmit the application to the United States Patent Office in accordance with procedures provided by legal counsel. If the material is classified "Secret" or higher, the contracting officer shall make every effort to notify the contractor within 30 days of the Government’s determination, pursuant to paragraph (a) of the clause. (c) Upon receipt of information furnished by the contractor under paragraph (d) of the clause at 52.227-10 , the contracting officer shall promptly submit that information to legal counsel in order that the steps necessary to ensure the security of the application will be taken. (d) The contracting officer shall act promptly on requests for approval of foreign filing under paragraph (c) of the clause at 52.227-10 in order to avoid the loss of valuable patent rights of the Government or the contractor.