Patent Assignment
Reel/Frame 073110/0970
Assignment of Assignor's Interest
Recorded: 2025-12-04
Pages: 8
Assignor
PHASE FOUR, INC.
Executed: 2025-09-17
Assignee
QUANTUM SPACE, LLC
801 THOMPSON AVENUE, SUITE 201, ROCKVILLE, MARYLAND, 20852
Covered Properties
(4)
Electrothermal Radio Frequency Thruster and Components
Plasma Production and Control Device
Propellant Injector System for Plasma Production Devices and Thrusters
Multimode Propulsion System
Related Assignments
(7)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jan 7, 2019
From: SIDDIQUI, MOHAMMED UMAIR
To: PHASE FOUR, INC.
Reel/Frame 047917/0682 →
Assignment of Assignor's Interest
Jun 14, 2019
From: SIDDIQUI, MOHAMMED UMAIR; SYNOWIEC, JOSHUA ROBERT; WALLACE, JASON JACKSON; HALPERN, SIMON RUBIN
To: PHASE FOUR, INC.
Reel/Frame 049475/0537 →
Security Interest
Sep 20, 2021
From: PHASE FOUR, INC.
To: VENTURE LENDING & LEASING IX, INC.
Reel/Frame 057536/0615 →
Assignment of Assignor's Interest
Mar 28, 2022
From: TSAI, DAVID; THOMPSON, DEREK; SIDDIQUI, MOHAMMED UMAIR
To: PHASE FOUR, INC.
Reel/Frame 059418/0143 →
Assignment of Assignor's Interest
Oct 30, 2023
From: SIDHU, JESSE; SIDDIQUI, MOHAMMED UMAIR; THOMPSON, DEREK; WALLACE, JASON JACKSON
To: PHASE FOUR, INC.
Reel/Frame 065392/0958 →
Release of Security Interest
Mar 8, 2024
From: VENTURE LENDING & LEASING IX, INC.
To: PHASE FOUR, INC.
Reel/Frame 066706/0573 →
Assignment of Assignor's Interest
Dec 24, 2025
From: SIDDIQUI, MOHAMMED UMAIR
To: PHASE FOUR, INC.
Reel/Frame 073312/0277 →