Patent Assignment
Reel/Frame 019611/0451
Assignment of Assignor's Interest
Recorded: 2007-07-26
Pages: 4
Assignors
JOHN, HENDRIK
Executed: 2007-07-16
VOLKER SCHILLEN, JOHN
Executed: 2007-07-06
EL-SIBLANI, ALI
Executed: 2007-07-09
Assignee
ENVISIONTEC GMBH
BRUSSELER STRASSE 51, GLADBACK, GERMANY
Covered Property
(1)
Device and Method for Producing a Three-Dimensional Object by Means of Mask Exposure
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Corrective Assignment to Correct the to Correct the Second Inventor's Name. Previously Recorded on Reel 019611 Frame 0451. Assignor(S) Hereby Confirms the Volker Schillen.
Aug 9, 2007
From: JOHN, HENDRIK; SCHILLEN, VOLKER; EL-SIBLANI, ALI
To: ENVISIONTEC GMBH
Reel/Frame 019672/0255 →
Assignment of Assignor's Interest
Nov 17, 2025
From: ENVISIONTEC GMBH
To: SPRINTRAY, INC.
Reel/Frame 072924/0874 →