There is a law in the United States under which an idea — privately conceived, privately funded, entirely your own — can be ordered secret. You cannot patent it. You cannot publish it. You cannot speak of it. This is that law, in its own words.
The Invention Secrecy Act of 1951 sits in the United States Code at Title 35, Sections 181 through 188, and it remains in effect to this day. It works like this: every patent application filed with the U.S. Patent Office is screened, and made available for inspection to the defense agencies. If the head of any interested agency decides that disclosure of your invention would be "detrimental to the national security", the Commissioner of Patents "shall order that the invention be kept secret". Your patent is withheld. The order stands for one year — and the statute allows it to be renewed, one year at a time, with no limit on the number of renewals.
The teeth are in the neighboring sections. Under Section 182, publish or disclose your invention in defiance of the order and your patent claim is deemed abandoned — the invention forfeit. Under Section 186, willful disclosure carries a fine of up to $10,000, imprisonment of up to two years, or both. Section 183 does offer the silenced inventor a right to apply for compensation — to the very agency that ordered the silence.
Read that first section again, because the detail most people refuse to believe is right there in the statute: the order can fall on an invention in which the government holds no property interest whatsoever. No defense contract, no federal funding, no classified source material. These are known as "John Doe" secrecy orders - imposed on wholly private inventors - and they mean an idea can arrive in the world already sealed. Not classified after falling into government hands: born secret, in the hands of its own creator.
Nor does the silence stop at the border. Under a 1960 NATO agreement on the mutual safeguarding of the secrecy of inventions relating to defence, an invention placed under a secrecy order in one member state is to be kept secret by the governments of the others as well — an arrangement reinforced by bilateral patent-secrecy agreements between the United States and more than a dozen individual nations. An inventor silenced here cannot simply file in London or Berlin instead; the order crosses the ocean with the application.
For decades, the criteria used to flag applications were themselves kept from the public — and the current list still is. But a Freedom of Information Act request, reported by the Federation of American Scientists, pried loose the 1971 edition, titled the "Patent Security Category Review List". Among the categories it marked for review and possible restriction: solar photovoltaic generators more than 20% efficient, and energy conversion systems offering efficiencies in excess of 70–80%. That is the source of the 70% figure we cite across this site. Sit with what it implies: at the very moment this country claimed to be searching for clean energy, its patent screening machinery listed too-efficient solar panels as a potential threat to national security.
None of this is history. When the Federation of American Scientists reported on the program in 2010, there were 5,135 secrecy orders in effect — the highest count in over a decade at the time. The figures they continue to compile from the Patent Office show the count has only climbed since:
| Fiscal Year | Secrecy Orders in Effect | New Orders Imposed | Orders Rescinded |
| 2021 | 5,976 | 61 | 0 |
| 2022 | 6,057 | 87 | 6 |
| 2023 | 6,155 | 125 | 27 |
| 2024 | 6,471 | 356 | 40 |
| 2025 | 6,543 | 102 | 30 |
By the end of fiscal year 2025: 6,543 inventions under active secrecy order. In 2021, sixty-one new orders were imposed and not a single one was lifted. Each of those numbers is an inventor, somewhere, holding a letter that tells them their own idea no longer belongs to them.
We used to link directly to the Federation of American Scientists' mirror of this statute; when that page went offline, we decided the law deserved more from us than a link — it deserves a permanent place on our site, because it is the documented foundation of everything we mean by the word suppression. The inventors we work with do not ask us to take their accounts on faith. They point to this statute — and to what happened to men like Stanley Meyer and Paul Pantone, who brought their inventions public anyway.
And a law this broad, renewed year after year for three-quarters of a century, is not defending a nation. It is defending a marketplace. Who that marketplace answers to — and why the trail always ends at the same private, monetary door — is the story we tell, episode by episode, on The Finergy Matrix. The statute was the door; come see where the hallway leads.
FULL TEXT: 35 U.S.C. CHAPTER 17 | FAS: "INVENTION SECRECY STILL GOING STRONG" | FAS: SECRECY ORDER STATISTICS | FAS: INVENTION SECRECY DOCUMENT LIBRARY