Patent Assignment
Reel/Frame 011054/0816
Assignment of Assignor's Interest
Recorded: 2000-08-18
Pages: 2
Assignors
CHARI, RAVI VANKEEPURAM JAGANNATHA
Executed: 2000-08-18
WIDDISON, WAYNE CHARLES
Executed: 2000-08-18
Assignee
IMMUNOGEN, INC.
128 SIDNEY STREET, CAMBRIDGE, MASSACHUSETTS, 02139
Covered Property
(1)
Process for the preparation and purification of thiol-containing maytansinoids
Patent:
6,333,410 →
Application:
09/641,348 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.