Patenting Aerospace and Defence Inventions

Aerospace and defence inventions operate under a layer of regulatory constraints that does not exist in other sectors — export controls, security classification, government contract IP ownership provisions, and dual-use technology rules. These constraints do not prevent patenting, but they fundamentally shape what can be filed, when, and how the patent is commercialised.

What Is Patentable

Aerospace

Novel aerodynamic structures, propulsion components, composite materials for aircraft structures, avionics systems, satellite components, launch vehicle technology, thermal protection systems, and space habitat systems.

Defence

Armour materials, detection and sensing systems, communication encryption hardware, unmanned systems, protective equipment, and survivability systems. Note that the actual patenting of defence innovations may be subject to government restrictions — see export controls below.

Dual-Use Technology

Technology with both civilian and military applications — advanced materials, sensor systems, encryption hardware, drone technology, radar systems. Dual-use inventions face the most complex regulatory landscape.

Export Control and Classification

The Critical Constraint

Before filing a patent application for an aerospace or defence invention, assess whether the technology is subject to export controls:

US-specific: The USPTO has a secrecy order process — if a patent application discloses information that could be detrimental to national security, the application may be placed under a secrecy order (35 U.S.C. §§ 181–188), preventing publication and potentially restricting the applicant's ability to file abroad. Approximately 5,000–6,000 active secrecy orders exist at any time.

Practical implication: For ITAR-controlled technology, consult an export control attorney before filing any patent application — including a US application. For dual-use technology, assess CCL classification before filing internationally. Filing a patent application that discloses controlled technology to a foreign patent office without authorisation can result in severe criminal and civil penalties.

Government Contract IP Ownership

Inventions developed under government contracts are subject to specific IP ownership rules:

US (Federal Acquisition Regulation / DFARS): Under the Bayh-Dole Act, small businesses and universities retain title to inventions made under federal funding — but the government retains a royalty-free licence for government purposes. For large contractors, IP rights are negotiated contract-by-contract. DFARS clauses (specifically DFARS 252.227-7013 and -7014) govern technical data rights — which are distinct from patent rights.

UK (MoD contracts): IP ownership in MoD contracts varies — some contracts assign IP to the Crown, others leave it with the contractor. Review the specific IP clause in each contract.

GCC (defence procurement): Saudi, UAE, and Qatar defence procurement contracts increasingly include IP provisions. ICV/Tawteen requirements in Saudi Arabia and the UAE create incentives for locally developed and locally patented defence technology.

Sources

1. USPTO - Patents — US patent resources including secrecy orders and government use provisions for defence inventions
2. 35 U.S.C. §181 (Secrecy Orders) — US statutory provisions on secrecy orders restricting publication of defence-related patent applications
3. EPO - Patent Information — European patent prosecution for aerospace technology
4. WIPO PATENTSCOPE — International patent search for aerospace and defence technology prior art