skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
Patent Assignment Abstract of Title
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Total Assignments: 6
Patent #:
5258149
Issue Dt:
11/02/1993
Application #:
07878580
Filing Dt:
05/05/1992
Inventors:
MARC E. PARHAM, RICHARD L. DUFFY, DONALD T. NICHOLSON
Title:
PROCESS OF MAKING A MEMBRANE FOR HIGH EFFECIENCY REMOVAL OF LOW DENSITY LIPOPROTEIN-CHOLESTEROL FROM WHOLE BLOOD
Assignment: 1
Reel/Frame:
006515/0872Recorded: 05/03/1993Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
PARHAM, MARC E.
Exec Dt:
09/10/1992
DUFFY, RICHARD L.
Exec Dt:
09/10/1992
NICHOLSON, DONALD T.
Exec Dt:
09/10/1992
Assignee:
W. R. GRACE & CO.-CONN.
1114 AVENUE OF THE AMERICAS
NEW YORK, NEW YORK 10036
Correspondent:
MARGIT MAUS
PATENT DEPARTMENT
W.R. GRACE & CO.-CONN.
55 HAYDEN AVENUE
LEXINGTON, MA 02173
Assignment: 2
Reel/Frame:
008568/0515Recorded: 06/19/1997Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
W.R. GRACE & CO.-CONN.
Exec Dt:
06/19/1997
Assignee:
CIRCE BIOMEDICAL, INC.
128 SPRING STREET
LEXINGTON, MASSACHUSETTS 02173
Correspondent:
W.R. GRACE & CO.-CONN.
ROBERT A. MAGGIO
7500 GRACE DRIVE
COLUMBIA, MD 21044
Assignment: 3
Reel/Frame:
013056/0483Recorded: 03/18/2002Pages: 9
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
CIRCE BIOMEDICAL, INC.
Exec Dt:
03/17/1999
Assignee:
CIRCE ACQUISITION CORP.
99 HAYDEN AVENUE
LEXINGTON, MASSACHUSETTS 02173
Correspondent:
FISH & RICHARDSON P.C.
JEFFREY D. HSI
225 FRANKLIN STREET
BOSTON, MA 02110-2804
Assignment: 4
Reel/Frame:
013000/0729Recorded: 03/15/2002Pages: 6
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
CIRCE ACQUISITION CORP.
Exec Dt:
04/27/1999
Assignee:
CIRCE BIOMEDICAL, INC.
99 HAYDEN AVENUE
LEXINGTON, MASSACHUSETTS 02173
Correspondent:
JEFFREY D. HSI
FISH & RICHARDSON
225 FRANKLIN ST.
BOSTON MA 02110-2804
Assignment: 5
Reel/Frame:
014615/0969Recorded: 05/12/2004Pages: 11
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
CIRCE BIOMEDICAL, INC.
Exec Dt:
04/07/2004
Assignee:
ARBIOS TECHONOLOGIES, INC.
110 N. GEORGE BURNS RD.
LOS ANGELES, CALIFORNIA 90048
Correspondent:
SCOTT HAYASHI
8797 BEVERLY BLVD.
SUITE 206
LOS ANGELES, CA 90048
Assignment: 6
Reel/Frame:
017006/0106Recorded: 01/12/2006Pages: 5
Conveyance:
MERGER (SEE DOCUMENT FOR DETAILS).
Assignor:
ARBIOS TECHNOLOGIES, INC.
Exec Dt:
07/26/2005
Assignee:
ARBIOS SYSTEMS, INC.
8797 BEVERLY BLVD.
SUITE 206
LOS ANGELES, CALIFORNIA 90048
Correspondent:
JEFFREY D. HSI
P.O. BOX 55874
BOSTON, MA 02205

Search Results as of: 05/25/2024 10:07 PM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT