Patent Assignment
Reel/Frame 010637/0622
Merger/Change of Name
Recorded: 2000-02-28
Pages: 5
Assignee
SONTRA MEDICAL, INC
58 CHARLES STREET, CAMBRIDGE, MASSACHUSETTS, 02141
Covered Properties
(2)
Ultrasound Enhancement of Transdermal Transport
Patent:
6,234,990 →
Application:
08/885,931 →
Sonophoretic Enhanced Transdermal Transport
Patent:
6,190,315 →
Application:
09/227,623 →
Related Assignments
(6)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 28, 1997
From: ROWE, STEPHEN; KOST, JOSEPH; MITRAGOTRI, SAMIR S.; PISHKO, MICHAEL
To: SONTRA MEDICAL, L.P.
Reel/Frame 008916/0090 →
Assignment of Assignor's Interest
Apr 13, 1999
From: LANGER, ROBERT S.
To: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Reel/Frame 009872/0345 →
Assignment of Assignor's Interest
Apr 13, 1999
From: MITRAGOTRI, SAMIR. S.; KOST, JOSEPH
To: SONTRA MEDICAL, L.P.
Reel/Frame 009900/0387 →
Assignment of Assignor's Interest
Jul 19, 1999
From: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
To: SONTRA MEDICAL, L.P.
Reel/Frame 010099/0439 →
Assignment of Assignor's Interest
Jul 19, 1999
From: LANGER, ROBERT S.
To: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Reel/Frame 010099/0670 →
Change of Name
Sep 6, 2012
From: SONTRA MEDICAL, INC.
To: ECHO THERAPEUTICS, INC.
Reel/Frame 028905/0611 →