IP Library Assignment 048259/0108
Patent Assignment
Reel/Frame 048259/0108

Assignment of Assignor's Interest

Recorded: 2019-02-04 Pages: 6
Assignors
MA, KUANGBIAO
Executed: 2018-02-15
DUBBERLEY, STUART
Executed: 2018-02-15
Assignee
SECURE ENERGY (DRILLING SERVICES) INC.
BOW VALLEY SQUARE 2, 3600, 205 5TH AVE SW, CALGARY, ALBERTA, T2P 2V7, CANADA
Covered Property (1)
Aqueous Drilling Fluid for Reducing Bitumen Accretion
Application: 16/210,268 →
Publication: US 2019/0169480
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest Aug 6, 2024
From: SECURE ENERGY SERVICES INC.
To: ATB FINANCIAL
Reel/Frame 068195/0090 →
Change of Name Apr 29, 2025
From: SECURE ENERGY (DRILLING SERVICES) INC.
To: SECURE SPECIALTY CHEMICALS CORP.
Reel/Frame 070976/0515 →