MPEP 100

Secrecy, Access, National Security, and Foreign Filing

Brief Summary:

This chapter covers the confidentiality of patent applications and patent related documents. The focus is on who may or may not access particular application types.

Any patent application that contains a sensitive issue will be placed under a secrecy order by the PTO. Absolutely no member of the public may view these patents even after they have issued.

Foreign filing licenses must be issued if an applicant wants to apply for a patent on the same subject matter in a foreign country immediately after filing for a U.S. patent.

Quick Statistics:

Number of Pages:  36 pgs
Sections:  101 – 151

101General
102Information as to Status of an Application
103Right of Public To Inspect Patent Files and Some Application Files
104Power to Inspect Application
105Suspended or Excluded Practitioner Cannot Inspect
106Control of Inspection by Assignee
106.01 Rights of Assignee of Part Interest
110Confidential Nature of International Applications
115Review of Applications for National Security and Property Rights Issues
120Secrecy Orders
121Handling of Applications under Secrecy Order and/or Bearing National Security Markings
130Examination of Secrecy Order Cases
140Foreign Filing Licenses
150Statements to DOE and NASA
151Content of the Statements

Key Terms:

Secrecy OrdersNational SecurityForeign Filing Licenses
AccessStatements to DOE and NASA 

37 CFR (Code of Federal Regulations):

37 CFR 1.14Patent applications preserved in confidence.
37 CFR 5.12Petition for license.

35 USC (United States Code):

35 USC 184Filing of application in foreign country.
35 USC 122Confidential status of applications; publication of patent applications.


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