IP Library › Assignment 004909/0062
Patent Assignment
Reel/Frame 004909/0062

Assignment of Assignors Interest.

Recorded: 1988-07-05 Pages: 3
Assignors
WOLFE, RICHARD A.
Executed: 1988-06-09
HEIFETZ, AARON H.
Executed: 1988-06-02
BRAATZ, JAMES A.
Executed: 1988-06-02
DONOFRIO, DAVID M.
Executed: 1988-04-16
Assignee
W. R. GRACE & CO. -CONN.
55 HAYDEN AVE., A CORP. OF CT, LEXINGTON, MASSACHUSETTS, 02173
Covered Property (1)
Hollow Fiber Bioreactor Culture System and Method
Patent: 4,999,298 →
Application: 07/186,609 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger Aug 24, 1989
From: GRACE MERGER CORP. A CT CORP. (MERGED INTO); W. R. GRACE & CO. A CT. CORP.
To: W. R. GRACE & CO.-CONN.
Reel/Frame 005206/0001 →
Assignment of Assignors Interest. Jan 8, 1993
From: W.R. GRACE & CO. -CONN.
To: AMICON, INC.
Reel/Frame 006376/0566 →