IP Library › Assignment 074392/0454
Patent Assignment
Reel/Frame 074392/0454

Security Interest

Recorded: 2026-04-16 Pages: 7
Assignor
YOUNGQUIST BROTHERS, LLC
Executed: 2026-04-15
Assignee
UMB BANK, N.A.
2 SOUTH BROADWAY, ST. LOUIS, MISSOURI, 63102
Covered Properties (5)
Drillable Centering Guides Used to Drill a Large Diameter Water Well
Application: 17/146,908 →
Publication: US 2021/0215002
Large Diameter Water Well Control
Application: 17/146,781 →
Publication: US 2021/0214924
Cementing Casing in a Large Diameter Mud Drilled Well
Application: 15/987,409 →
Publication: US 2019/0368307
Air Developed Packer Testing System
Application: 18/338,187 →
Publication: US 2023/0407745
Cement Detecting Device
Application: 18/806,097 →
Publication: US 2025/0059878
Related Assignments (4)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest May 23, 2018
From: YOUNGQUIST, HARVEY BRUCE, JR; YOUNGQUIST, BRETT ALAN
To: YOUNGQUIST BROTHERS, INC.
Reel/Frame 045884/0849 →
Assignment of Assignor's Interest Jan 12, 2021
From: YOUNGQUIST, HARVEY BRUCE, JR; YOUNGQUIST, BRETT ALAN
To: YOUNGQUIST BROTHERS, LLC
Reel/Frame 054894/0880 →
Assignment of Assignor's Interest Jan 12, 2021
From: YOUNGQUIST, HARVEY BRUCE, JR; YOUNGQUIST, BRETT ALAN
To: YOUNGQUIST BROTHERS, LLC
Reel/Frame 054895/0170 →
Assignment of Assignor's Interest Feb 2, 2026
From: YOUNGQUIST BROTHERS, INC.
To: YOUNGQUIST BROTHERS, LLC
Reel/Frame 073662/0503 →