Assignee
PHASE FOUR INC
US·4 granted patents·1 pending application·11 citations·filing 2018–2023
Top patents by PatentIndex Score
5 records- 0183US11231023B2Electrothermal radio frequency thruster and componentsPHASE FOUR INC·Filed 2018·Granted Jan 25, 2022·8 cites·22 claims
- 0269US11067065B2Plasma production and control devicePHASE FOUR INC·Filed 2019·Granted Jul 20, 2021·3 cites·21 claims
- 0355US12196158B2Multimode propulsion systemPHASE FOUR INC·Filed 2023·Granted Jan 14, 2025·0 cites·24 claims
- 0445US2019107103A1Electrothermal radio frequency thruster and componentsPHASE FOUR INC·Filed 2018·Application pending·0 cites
- 0543US12195205B2Propellant injector system for plasma production devices and thrustersPHASE FOUR INC·Filed 2020·Granted Jan 14, 2025·0 cites·18 claims
Join the waitlist — get patent alerts
Get an alert when PHASE FOUR INC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →