IP Library › Assignment 044449/0587
Patent Assignment
Reel/Frame 044449/0587

Assignment of Assignor's Interest

Recorded: 2017-12-20 Pages: 5
Assignor
SPEX ENGINEERING (UK) LIMITED
Executed: 2017-12-12
Assignee
SPEX CORPORATE HOLDINGS LIMITED
COMPANY NO. SC553125, BLACKWOOD HOUSE, UNION GROVE LANE, ABERDEEN, AB10 6XU, UNITED KINGDOM
Covered Properties (6)
Improved Closure Apparatus
Application: 15/037,136 →
Publication: US 2016/0273296
Improved Plug
Application: 15/513,243 →
Publication: US 2018/0230770
Cutting Tool
Application: 15/522,166 →
Publication: US 2018/0291697
Downhole Tool with a Propellant Charge
Application: 15/527,970 →
Publication: US 2018/0163496
Downhole Tool with a Propellant Charge
Application: 15/565,497 →
Publication: US 2018/0163497
Detecting Apparatus
Patent: 9,945,226 →
Application: 15/714,098 →
Publication: US 2018/0023386
Related Assignments (7)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest Aug 30, 2016
From: OAG, JAMES GEORGE; YOUNGER, RAE ANDREW
To: SPEX ENGINEERING (UK) LIMITED
Reel/Frame 039574/0826 →
Assignment of Assignor's Interest Aug 4, 2017
From: OAG, JAMIE; YOUNGER, RAE; JOHNSTON, SIDNEY DANTUMA
To: SPEX ENGINEERING (UK) LIMITED
Reel/Frame 043200/0267 →
Assignment of Assignor's Interest Aug 4, 2017
From: OAG, JAMIE; YOUNGER, RAE
To: SPEX ENGINEERING (UK) LIMITED
Reel/Frame 043205/0309 →
Assignment of Assignor's Interest Aug 4, 2017
From: OAG, JAMIE; YOUNGER, RAE; PETTITT, ANDREW; CHAPMAN, BARRY
To: SPEX ENGINEERING (UK) LIMITED
Reel/Frame 043206/0979 →
Assignment of Assignor's Interest Nov 28, 2017
From: TAYLOR, MATTHEW
To: GEOPROBER DRILLING LIMITED
Reel/Frame 044236/0062 →
Assignment of Assignor's Interest Dec 19, 2017
From: GEOPROBER DRILLING LIMITED
To: SPEX ENGINEERING (UK) LIMITED
Reel/Frame 044431/0643 →
Assignment of Assignor's Interest Dec 20, 2017
From: YOUNGER, RAE
To: SPEX ENGINEERING (UK) LIMITED
Reel/Frame 044448/0129 →