| RE49778 | Persistent vortex generating high regression rate solid fuel grain for a hybrid rocket engine | Jun 03, 21 | Jan 02, 24 | Firehawk Aerospace, Inc. |
| 9989012 | Vapor jetting device and spacecraft | Feb 09, 15 | Jun 05, 18 | IHI Corporation |
| 9988162 | Method and device for control of a sunlight acquisition phase of a spacecraft | Nov 24, 14 | Jun 05, 18 | AIRBUS DEFENCE AND SPACE SAS |
| 9989041 | Thruster grid clear circuits and methods to clear thruster grids | Apr 22, 15 | Jun 05, 18 | The Boeing Company |
| 9989015 | Launcher stage comprising a temporary support structure for temporarily supporting nozzle sections allowing access to the core of the engine | Apr 12, 13 | Jun 05, 18 | SNECMA |
| 9981757 | Propulsion unit for reusable launch vehicle | Jul 04, 14 | May 29, 18 | AIRBUS DEFENCE & SPACE SAS |
| 9980361 | Thermally isolated thermionic hollow cathodes | Jun 16, 17 | May 22, 18 | The Goverment of the United States of America as represented by the Secretary of the Navy |
| 9977125 | Innovative orbit design for earth observation space missions | Dec 20, 13 | May 22, 18 | Thales Alenia Space Italia S.p.A. Con Unico Socio |
| 9976574 | Dual bellows separator for high pressure applications | May 15, 14 | May 22, 18 | TECHNETICS GROUP, LLC |
| 9970740 | Viscous liquid monopropellant | Mar 14, 12 | May 15, 18 | Rocket Lab USA, Inc. |
| 9970389 | Antivortex device and method of assembling thereof | Mar 06, 14 | May 15, 18 | The Boeing Company |
| 9963248 | Spin stabilization of a spacecraft for an orbit maneuver | Feb 04, 16 | May 08, 18 | The Boeing Company |
| 9963250 | Propulsion bay | Sep 20, 12 | May 08, 18 | Centre National d'Etudes Spatiales |
| 9957068 | Multiple space vehicle launch system | Oct 28, 15 | May 01, 18 | The Boeing Company |
| 9957067 | Propulsion system in two modules for satellite orbit control and attitude control | Jun 06, 14 | May 01, 18 | Thales |
| 9944412 | Spacecraft system for debris disposal and other operations and methods pertaining to the same | Oct 03, 14 | Apr 17, 18 | Busek Co. Inc. |
| 9947423 | Nanofuel internal engine | May 27, 16 | Apr 17, 18 | Global Energy Research Associates, LLC |
| 9938025 | Device for retaining a tank in an aircraft | Feb 04, 14 | Apr 10, 18 | AIRBUS DEFENCE & SPACE SAS |
| 9938026 | Energy beam propulsion system | Jul 17, 17 | Apr 10, 18 | Not available |
| 9938027 | Methods of accelerating a target vehicle to a higher orbit via a kinetic energy storage and transfer (KEST) space vehicle | Dec 09, 15 | Apr 10, 18 | The Aerospace Corporation |