IP Library Assignment 022140/0729
Patent Assignment
Reel/Frame 022140/0729

Assignment of Assignor's Interest

Recorded: 2009-01-22 Pages: 2
Assignors
YURCHENKO, VITALIY G.
Executed: 2008-12-15
ZHANG, LIZHONG
Executed: 2008-12-15
Assignee
IBASIS, INC.
20 SECOND AVENUE, BURLINGTON, MASSACHUSETTS, 01803
Covered Property (1)
System and Method for Using Exception Routing Tables in an Internet Based Telephone Call Routing System
Patent: 8,290,137 →
Application: 12/357,709 →
Publication: US 2009/0129374
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest May 21, 2026
From: IBASIS INC.
To: SESSION LINK RESEARCH LLC
Reel/Frame 074721/0001 →