Patent Assignment
Reel/Frame 014038/0172
Assignment of Assignor's Interest
Recorded: 2002-12-16
Pages: 4
Assignors
BRADY, BILL L., JR.
Executed: 2002-12-02
WEYMANS, GUENTHER
Executed: 2002-11-18
KEGGENHOFF, BERTHOLD
Executed: 2002-12-03
STEFFENS, FRIEDHELM
Executed: 2002-12-03
Assignees
BAYER CORPORATION
100 BAYER ROAD, PATENT DEPARTMENT, PITTSBURGH, PENNSYLVANIA, 15205-9741
BAYER AKTIENGESELLSCHAFT
PATENTE UND LIZENZEN, D 51368, LEVERKUSEN, GERMANY
Covered Property
(1)
Process for Purification of Anhydrous Hydrogen Chloride Gas
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 22, 2002
From: BRADY, JR, BILL L.; WEYMANS, GUNTHER; KEGGENHOFF, BERTHOLD; STEFFENS, FRIEDHEIM
To: BAYER CORPORATION
Reel/Frame 013113/0808 →
Assignment of Assignor's Interest
Mar 2, 2015
From: BAYER CORPORATION
To: BAYER MATERIALSCIENCE LLC
Reel/Frame 035064/0270 →
Change of Name
Oct 16, 2015
From: BAYER MATERIALSCIENCE LLC
To: COVESTRO LLC
Reel/Frame 036876/0585 →