IP Library › Assignment 071531/0955
Patent Assignment
Reel/Frame 071531/0955

Change of Name

Recorded: 2025-06-04 Pages: 6
Assignor
BLACK HAWK ENERGY SERVICES LTD.
Executed: 2023-04-28
Assignee
BLACK HAWK ENERGY SERVICES, LLC
13593 56TH STREET NW, WILLISTON, NORTH DAKOTA, 58801
Covered Properties (3)
Base Beam and Self-Propelled Derrick Rig Assembly
Patent: 9,238,945 →
Application: 13/768,672 →
Publication: US 2014/0231067
Counterweight Assembly for a Self-Propelled Derrick Rig Assembly
Patent: 9,341,028 →
Application: 13/768,697 →
Publication: US 2014/0232094
Methods of Supporting a Self-Propelled Derrick Rig
Patent: 9,212,524 →
Application: 13/768,738 →
Publication: US 2014/0231098
Related Assignments (4)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest Dec 17, 2013
From: BLACK HAWK ENERGY SERVICES, INC.
To: BLACK HAWK ACQUISITION, INC.
Reel/Frame 031797/0084 →
Change of Name Mar 25, 2016
From: BLACK HAWK ACQUISITION, INC.
To: BLACK HAWK ENERGY SERVICES LTD.
Reel/Frame 038262/0043 →
Security Interest Dec 4, 2017
From: BLACK HAWK ENERGY SERVICES LTD.; HANDY & HARMAN; HANDYTUBE CORPORATION; MTE CORPORATION
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 044678/0939 →
Change of Name Dec 28, 2017
From: BLACK HAWK ACQUISITION, INC.
To: BLACK HAWK ENERGY SERVICES LTD.
Reel/Frame 044968/0764 →