IP Library › Assignment 063235/0176
Patent Assignment
Reel/Frame 063235/0176

Security Interest

Recorded: 2023-04-05 Pages: 4
Assignor
BIOCHEM SYSTEMS, INC.
Executed: 2023-03-25
Assignee
BANCFIRST
7625 EAST 51ST STREET, TULSA, OKLAHOMA, 74145
Covered Property (1)
Method and Apparatus for Cleaning Railroad Tank Cars
Patent: 9,737,918 →
Application: 14/885,438 →
Publication: US 2016/0107205
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest Oct 21, 2019
From: BIOCHEM SYSTEMS, INC.
To: BANCFIRST
Reel/Frame 050777/0544 →
Security Interest Nov 10, 2020
From: BIOCHEM SYSTEMS, INC.
To: BANCFIRST
Reel/Frame 054325/0480 →