Patent Assignment
Reel/Frame 019145/0985
Assignment of Assignor's Interest
Recorded: 2007-04-11
Pages: 3
Assignee
CENTER FOR ABRASIVES AND REFRACTORIES RESEARCH AND DEVELOPMENT - C.A.R.R.D. GMBH
SEEBACHER ALLEE 64, VILLACH - ST. MAGDALEN, 9524, AUSTRIA
Covered Property
(1)
Method of Manufacturing and Using Rod-Shaped Proppants and Anti-Flowback Additives
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 6, 2007
From: CENTRE FOR ABRASIVES AND REFRACTORIES RESEARCH AND DEVELOPMENT - C.A.R.R.D. GMBH
To: IMERYS SERVICES S.A.S.
Reel/Frame 020078/0509 →
Assignment of Assignor's Interest
Nov 6, 2007
From: ALARY, JEAN ANDRE; PARIAS, THOMAS
To: IMERYS SERVICES S.A.S.
Reel/Frame 020078/0907 →
Assignment of Assignor's Interest
Dec 18, 2008
From: IMERYS SERVICES S.A.S.
To: IMERYS
Reel/Frame 022005/0686 →
Assignment of Assignor's Interest
Feb 25, 2019
From: IMERYS
To: IMERTECH SAS
Reel/Frame 048419/0763 →
Assignment of Assignor's Interest
Oct 11, 2019
From: IMERYS OILFIELD MINERALS, INC.
To: US CERAMICS LLC
Reel/Frame 050687/0024 →
Assignment of Assignor's Interest
Oct 11, 2019
From: IMERTECH SAS
To: IMERYS OILFIELD MINERALS, INC.
Reel/Frame 050720/0058 →