IP Library › Assignment 032267/0036
Patent Assignment
Reel/Frame 032267/0036

Assignment of Assignor's Interest

Recorded: 2014-02-21 Pages: 9
Assignor
TECH-STAR FLUID SYSTEMS INC.
Executed: 2013-11-19
Assignee
CANADIAN ENERGY SERVICES L.P.
1400, 700 - 4TH AVENUE SW, CALGARY, T2P 2X6, CANADA
Covered Properties (6)
Drilling Fluid and Methods
Patent: 7,989,399 →
Application: 12/025,164 →
Publication: US 2008/0217064
Drilling Fluid and Method for Drilling in Coal-Containing Formations
Patent: 8,387,723 →
Application: 12/529,583 →
Publication: US 2010/0089650
Drilling Fluid and Methods
Patent: 8,703,658 →
Application: 13/171,273 →
Publication: US 2011/0306524
Drilling Fluid and Methods
Patent: 8,338,340 →
Application: 13/193,170 →
Publication: US 2011/0281777
Drilling Fluid and Method for Drilling in Coal-Containing Formations
Application: 13/776,914 →
Publication: US 2013/0225457
Drilling Fluid and Method for Drilling in Coal-Containing Formations
Patent: 9,850,416 →
Application: 13/817,635 →
Publication: US 2013/0206479
Related Assignments (11)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest Apr 18, 2008
From: STOIAN, STEFAN ALEXANDRU; SMITH, CARL KEITH
To: TECHSTAR ENERGY SERVICES INC.
Reel/Frame 020827/0222 →
Assignment of Assignor's Interest Nov 17, 2009
From: STOIAN, STEFAN ALEXANDRU; SMITH, CARL KEITH
To: TECHSTAR ENERGY SERVICES INC.
Reel/Frame 023528/0322 →
Assignment of Assignor's Interest Jul 29, 2011
From: STOIAN, STEFAN ALEXANDRU; SMITH, CARL KEITH
To: TECHSTAR ENERGY SERVICES INC.
Reel/Frame 026671/0964 →
Assignment of Assignor's Interest Aug 23, 2011
From: SMITH, CARL KEITH
To: TECHSTAR ENERGY SERVICES INC.
Reel/Frame 026791/0808 →
Change of Name Oct 28, 2011
From: TECH-STAR ENERGY SERVICES INC.
To: TECH-STAR FLUID SYSTEMS INC.
Reel/Frame 027139/0820 →
Change of Name Oct 31, 2011
From: TECH-STAR ENERGY SERVICES INC.
To: TECH-STAR FLUID SYSTEMS INC.
Reel/Frame 027151/0676 →
Corrective Assignment to Correct the Assignment Previously Recorded on Reel 026791 Frame 0808. Assignor(S) Hereby Confirms the Correction of the Name of the Assignee from Techstar Energy Services Inc. to Tech-Star Fluid Systems Inc.. Nov 4, 2011
From: SMITH, CARL KEITH
To: TECH-STAR FLUID SYSTEMS INC.
Reel/Frame 027181/0593 →
Assignment of Assignor's Interest Apr 22, 2013
From: SMITH, CARL KEITH
To: TECH-STAR FLUID SYSTEMS INC.
Reel/Frame 030261/0354 →
Change of Name Nov 14, 2013
From: TECHSTAR ENERGY SERVICES INC.
To: TECH-STAR FLUID SYSTEMS INC.
Reel/Frame 031637/0118 →
Assignment of Assignor's Interest Nov 14, 2013
From: STOIAN, STEFAN ALEXANDRU; SMITH, CARL KEITH
To: TECHSTAR ENERGY SERVICES INC.
Reel/Frame 031601/0716 →
Security Interest Jan 30, 2015
From: CANADIAN ENERGY SERVICES L.P.
To: THE BANK OF NOVA SCOTIA
Reel/Frame 034857/0635 →