FAS

Invention Secrecy Still Going Strong

10.21.10 | 2 min read | Text by Steven Aftergood

There were 5,135 inventions that were under secrecy orders at the end of Fiscal Year 2010, the U.S. Patent and Trademark Office told Secrecy News last week.  It’s a 1% rise over the year before, and the highest total in more than a decade.

Under the Invention Secrecy Act of 1951, patent applications on new inventions can be subject to secrecy orders restricting their publication if government agencies believe that disclosure would be “detrimental to the national security.”

The current list of technology areas that is used to screen patent applications for possible restriction under the Invention Secrecy Act is not publicly available and has been denied under the Freedom of Information Act.  (An appeal is pending.)  But a previous list dated 1971 and obtained by researcher Michael Ravnitzky is available here (pdf).

Most of the listed technology areas are closely related to military applications.  But some of them range more widely.

Thus, the 1971 list indicates that patents for solar photovoltaic generators were subject to review and possible restriction if the photovoltaics were more than 20% efficient.  Energy conversion systems were likewise subject to review and possible restriction if they offered conversion efficiencies “in excess of 70-80%.”

One may fairly ask if disclosure of such technologies could really have been “detrimental to the national security,” or whether the opposite would be closer to the truth.  One may further ask what comparable advances in technology may be subject to restriction and non-disclosure today.  But no answers are forthcoming, and the invention secrecy system persists with no discernible external review.

publications
See all publications
Government Capacity
Blog
Direct File Is the Floor, Not the Ceiling

“The first rule of government transformation is: there are a lot of rules. And there should be-ish. But we don’t need to wait for permission to rewrite them. Let’s go fix and build some things and show how it’s done.”

08.06.25 | 5 min read
read more
Emerging Technology
Blog
Creating A Vision and Setting Course for the Science and Technology Ecosystem of 2050

To better understand what might drive the way we live, learn, and work in 2050, we’re asking the community to share their expertise and thoughts about how key factors like research and development infrastructure and automation will shape the trajectory of the ecosystem.

08.06.25 | 4 min read
read more
Emerging Technology
Blog
Why Listening Matters for Moonshot Programs: ARPA-I’s National Tour

Recognizing the power of the national transportation infrastructure expert community and its distributed expertise, ARPA-I took a different route that would instead bring the full collective brainpower to bear around appropriately ambitious ideas.

08.05.25 | 7 min read
read more
Emerging Technology
day one project
Policy Memo
Establish a Network of Centers of Excellence in Human Nutrition (CEHN) to Overcome the Data Drought in Nutrition Science Research

NIH needs to seriously invest in both the infrastructure and funding to undertake rigorous nutrition clinical trials, so that we can rapidly improve food and make progress on obesity.

08.04.25 | 12 min read
read more