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Patent Assignment Assignee Details

NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignee Name : OPK BIOTECH LLC

Total Assignments: 4

Assignment: 1

Reel/Frame:	024125/0221			Pages:	36
		Recorded:	03/23/2010
Attorney Dkt #:	1161.1036-003
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

BIOPURE CORPORATION

Exec Dt:

08/31/2009

Assignee

OPK BIOTECH LLC

11 HURLEY STREET

CAMBRIDGE, MASSACHUSETTS 02141

Property

Pat #

Pub #

Intl #

App #

NONE

US20090137762

12326076

Correspondence name and address
	N. SCOTT PIERCE, ESQ.
	530 VIRGINIA ROAD, P.O. BOX 9133
	HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
	CONCORD, MA 01742-9133

Assignment: 2

Reel/Frame:	027684/0862			Pages:	3
		Recorded:	02/10/2012
Attorney Dkt #:	1161.2006-002
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

BIOPURE CORPORATION

Exec Dt:

08/31/2009

Assignee

OPK BIOTECH LLC

11 HURLEY STREET

CAMBRIDGE, MASSACHUSETTS 02141

Property

Pat #

Pub #

Intl #

App #

NONE

US20100209532

12451997

Correspondence name and address
	N. SCOTT PIERCE
	530 VIRGINIA ROAD, P.O. BOX 9133
	HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
	CONCORD, MA 01742

Assignment: 3

Reel/Frame:	024850/0648			Pages:	5
		Recorded:	08/19/2010
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

BIOPURE CORPORATION

Exec Dt:

09/09/2009

Assignee

OPK BIOTECH LLC

11 HURLEY STREET

CAMBRIDGE, MASSACHUSETTS 02141

Properties

Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #
5084558	NONE		07119121	5095765	NONE		07539970	5296465	NONE		07820153
5679638	NONE		08094501	5618919	NONE		08209949	5854209	NONE		08409337
5840852	NONE		08458916	5691452	NONE		08471583	5691453	NONE		08475899
5952470	NONE		08477916	5753616	NONE		08478004	5955581	NONE		08484775
5895810	NONE		08487288	5808011	NONE		08673147	5905141	NONE		08838514
6150507	NONE		09113953	6271351	NONE		09173189	6506725	NONE		09309069
6288027	NONE		09348881	6610832	NONE		09349290	6541449	NONE		09749504
6518010	US20020161197		09795821	NONE	US20020128182		09912254	NONE	US20020065211		09938262
6811778	US20030049232		09950270	7041799	NONE		10018529	7041800	NONE		10018599
7001715	US20030165573		10090428	6986984	US20030113707		10306819	NONE	US20030158091		10351977
NONE	US20030203350		10420630	7267817	US20050079162		10967475	7135554	NONE		10998861
NONE	US20050143565		11071672	7553613	US20060084137		11289048	NONE	US20060160724		11386956
7459535	US20070219335		11583363	NONE	US20080069771		11901462	NONE	US20090137762		12326076
NONE	US20100209532		12451997

Correspondence name and address
	N. SCOTT PIERCE
	530 VIRGINIA ROAD. P.O. BOX 9133
	HAMILTON BROOK SMITH REYNOLDS P.C.
	CONCORD, MA 01742-9133

Assignment: 4

Reel/Frame:	025832/0679			Pages:	17
		Recorded:	02/18/2011
Attorney Dkt #:	4569.0004-000
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

NORTHFIELD LIQUIDATION TRUST

Exec Dt:

12/02/2010

Assignee

OPK BIOTECH LLC

11 HURLEY STREET

CAMBRIDGE, MASSACHUSETTS 02141

Properties

Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #
4826811	NONE		06876689	5194590	NONE		07616727	6133425	NONE		08031563
5464814	NONE		08203505	5747649	NONE		08484942	NONE	US20020025343		09155419
6498141	US20020025343		09155419	6323320	NONE		09638471	6552173	US20020062007		09995203
NONE	US20030065149		10124941	NONE	US20030191050		10274099	6914127	US20030130487		10348579
7291592	US20040067876		10678927	7135553	US20040186047		10767516	NONE	US20050065067		10993228
7202341	US20060014671		11231921	7411044	US20060287222		11509454	NONE	US20070196810		11626727
7435795	US20070173435		11709976	7521417	US20080108555		11972322	NONE	US20100197566		12426566

Correspondence name and address
	N. SCOTT PIERCE
	530 VIRGINIA ROAD, P.O. BOX 9133
	HAMILTON BROOK SMITH REYNOLDS P.C.
	CONCORD, MA 01742-9133

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