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Patent Assignment Assignee Details
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Assignee Name : HELIX BIOPHARMA CORP.
Total Assignments: 21
Assignment: 1
Reel/Frame:023998/0363   Pages: 5
Recorded: 02/26/2010
Attorney Dkt #:54800-8000
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
6965954 CANADA LTD.
Exec Dt:
04/28/2008
Assignee
1
HELIX BIOPHARMA CORP.
3-305 INDUSTRIAL PARKWAY SOUTH
AURORA, ONTARIO, CANADA L4G 6X7
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
5718914
NONE
08342962
 
5853755
NONE
08872068
 
5993851
NONE
09042097
 
5993852
NONE
09141875
 
6165458
NONE
09216500
 
6656499
NONE
09709691
 
6444200
US20010019712
09730464
Correspondence name and address
KING & SPALDING LLP
P. O. BOX 889
BELMONT, CA 94002
Assignment: 2
Reel/Frame:045073/0532   Pages: 4
Recorded: 01/16/2018
Attorney Dkt #:16082-1 LAB
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
6965954 CANADA LTD.
Exec Dt:
04/28/2008
Assignee
1
HELIX BIOPHARMA CORP.
1188 WEST GEORGIA STREET
SUITE 1260
VANCOUVER, CANADA V6E 4A2
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
6165458
NONE
09216500
 
6656499
NONE
09709691
 
6444200
US20010019712
09730464
Correspondence name and address
LOLA BARTOSZEWICZ
AIRD & MCBURNEY, BROOKFIELD PLACE
181 BAY STREET, SUITE 1800
TORONTO', M5J 2T9 CANADA
Assignment: 3
Reel/Frame:030981/0012   Pages: 6
Recorded: 08/09/2013
Attorney Dkt #:105013-0201
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
PHARMADERM LABORATORIES LTD.
Exec Dt:
12/07/2009
Assignee
1
HELIX BIOPHARMA CORP.
305 INDUSTRIAL PARKWAY SOUTH
UNIT 3, AURORA
ONTARIO, CANADA L4G 6X7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8945529
US20100196453
12532752
Correspondence name and address
BRIAN S. SUN
FOLEY & LARDNER LLP
P. O. BOX 80278
SAN DIEGO, CA 92138-0278
Assignment: 4
Reel/Frame:034656/0119   Pages: 6
Recorded: 01/07/2015
Attorney Dkt #:15289-P44183US00
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TIAN, BAOMIN
Exec Dt:
06/11/2013
2
WONG, WAH YAU
Exec Dt:
06/11/2013
3
CHAO, HEMAN LAP-MAN
Exec Dt:
06/11/2013
Assignee
1
HELIX BIOPHARMA CORP.
305 INDUSTRIAL PARKWAY SOUTH
UNIT 3
AURORA, CANADA L4G 6X7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9296819
US20150166668
14407724
Correspondence name and address
BERESKIN & PARR LLPP
40 KING STREET WEST
40TH FLOOR
TORONTO, M5H 3Y2 CANADA
Assignment: 5
Reel/Frame:036760/0339   Pages: 3
Recorded: 10/08/2015
Attorney Dkt #:105013-0316
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
CHAO, HEMAN
Exec Dt:
02/05/2014
Assignee
1
HELIX BIOPHARMA CORP.
305 INDUSTRIAL PARKWAY SOUTH
UNIT 3
AURORA, CANADA L4G 6X7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10316311
US20160138002
14783153
Correspondence name and address
FOLEY & LARDNER LLP
3000 K STREET N.W.
SUITE 600
WASHINGTON, DC 20007-5109
Assignment: 6
Reel/Frame:045768/0566   Pages: 6
Recorded: 05/10/2018
Attorney Dkt #:16010-174 LAB
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAO, HEMAN LAP MAN
Exec Dt:
05/04/2017
2
WONG, WAH YAU
Exec Dt:
04/19/2017
3
TIAN, BAOMIN
Exec Dt:
04/19/2017
4
UGER, MARNI DIANE
Exec Dt:
05/02/2017
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET
SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11466088
US20180230219
15862015
Correspondence name and address
LOLA BARTOSZEWICZ
BROOKFIELD PLACE,
181 BAY STREET, SUITE 1800
TORONTO, M5J 2T9 CANADA
Assignment: 7
Reel/Frame:047174/0503   Pages: 6
Recorded: 10/16/2018
Attorney Dkt #:16010-176 LAB
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAO, HEMAN LAP MAN
Exec Dt:
05/04/2017
2
WONG, WAH YAU
Exec Dt:
04/19/2017
3
TIAN, BAOMIN
Exec Dt:
04/19/2017
4
UGER, MARNI DIANE
Exec Dt:
05/02/2017
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET
SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180243437
15861951
Correspondence name and address
LOLA BARTOSZEWICZ
AIRD & MCBURNEY LP, BROOKFIELD PLACE
181 BAY STREET, SUITE 1800
TORONTO, M5J 2T9 CANADA
Assignment: 8
Reel/Frame:048842/0247   Pages: 6
Recorded: 04/10/2019
Attorney Dkt #:16010-172 LAB
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAO, HEMAN LAP MAN
Exec Dt:
05/04/2017
2
WONG, WAH YAU
Exec Dt:
04/19/2017
3
TIAN, BAOMIN
Exec Dt:
04/19/2017
4
UGER, MARNI DIANE
Exec Dt:
05/02/2017
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET
SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180244784
15862006
Correspondence name and address
LOLA A BARTOSZEWICZ
BROOKFIELD PLACE, 181 BAY STREET
SUITE 1800
TORONTO, M5J 2T9 CANADA
Assignment: 9
Reel/Frame:045768/0673   Pages: 6
Recorded: 05/10/2018
Attorney Dkt #:16010-174 LAB
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAO, HEMAN LAP MAN
Exec Dt:
05/31/2017
2
WONG, WAH YAU
Exec Dt:
05/23/2017
3
TIAN, BAOMIN
Exec Dt:
05/23/2017
4
UGER, MARNI DIANE
Exec Dt:
05/31/2017
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET
SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11466088
US20180230219
15862015
Correspondence name and address
LOLA BARTOSZEWICZ
BROOKFIELD PLACE,
181 BAY STREET, SUITE 1800
TORONTO, M5J 2T9 CANADA
Assignment: 10
Reel/Frame:047174/0665   Pages: 6
Recorded: 10/16/2018
Attorney Dkt #:16010-176 LAB
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAO, HEMAN LAP MAN
Exec Dt:
05/31/2017
2
WONG, WAH YAU
Exec Dt:
05/23/2017
3
TIAN, BAOMIN
Exec Dt:
05/23/2017
4
UGER, MARNI DIANE
Exec Dt:
05/31/2017
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET
SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180243437
15861951
Correspondence name and address
LOLA BARTOSZEWICZ
AIRD & MCBURNEY LP, BROOKFIELD PLACE
181 BAY STREET, SUITE 1800
TORONTO, M5J 2T9 CANADA
Assignment: 11
Reel/Frame:045716/0606   Pages: 7
Recorded: 05/04/2018
Attorney Dkt #:16010-169 LAB
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WONG, WAH YAU
Exec Dt:
09/14/2017
2
TIAN, BAOMIN
Exec Dt:
09/14/2017
3
GASPAR, KIM
Exec Dt:
09/14/2017
4
UGER, MARNI
Exec Dt:
09/21/2017
5
ROHMANN, SVEN
Exec Dt:
10/01/2017
6
CHAO, HEMAN
Exec Dt:
10/02/2017
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET
SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10640806
US20180087088
15712802
Correspondence name and address
LOLA BARTOSZEWICZ
BROOKFIELD PLACE,
181 BAY STREET, SUITE 1800
TORONTO, M5J 2T9 CANADA
Assignment: 12
Reel/Frame:066881/0646   Pages: 7
Recorded: 03/25/2024
Attorney Dkt #:4329.003US2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WONG, WAH YAU
Exec Dt:
09/14/2017
2
TIAN, BAOMIN
Exec Dt:
09/14/2017
3
GASPAR, KIM
Exec Dt:
09/14/2017
4
UGER, MARNI
Exec Dt:
09/21/2017
5
ROHMANN, SVEN
Exec Dt:
10/01/2017
6
CHAO, HEMAN
Exec Dt:
10/02/2017
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET, SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20200362387
16847490
Correspondence name and address
SCHWEGMAN LUNDBERG & WOESSNER P.A.
P.O. BOX 2938
MINNEAPOLIS, MN 55402
Assignment: 13
Reel/Frame:045716/0430   Pages: 8
Recorded: 05/04/2018
Attorney Dkt #:16010-169 LAB
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WONG, WAH YAU
Exec Dt:
11/08/2017
2
TIAN, BAOMIN
Exec Dt:
11/08/2017
3
GASPAR, KIM
Exec Dt:
09/29/2017
4
UGER, MARNI
Exec Dt:
09/29/2017
5
ROHMANN, SVEN
Exec Dt:
10/01/2017
6
CHAO, HEMAN
Exec Dt:
10/02/2017
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET
SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10640806
US20180087088
15712802
Correspondence name and address
LOLA BARTOSZEWICZ
BROOKFIELD PLACE,
181 BAY STREET, SUITE 1800
TORONTO, M5J 2T9 CANADA
Assignment: 14
Reel/Frame:066881/0590   Pages: 8
Recorded: 03/25/2024
Attorney Dkt #:4539.003US2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WONG, WAH YAU
Exec Dt:
11/08/2017
2
TIAN, BAOMIN
Exec Dt:
11/08/2017
3
GASPAR, KIM
Exec Dt:
09/29/2017
4
UGER, MARNI
Exec Dt:
09/29/2017
5
ROHMANN, SVEN
Exec Dt:
10/01/2017
6
CHAO, HEMAN
Exec Dt:
10/02/2017
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET, SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20200362387
16847490
Correspondence name and address
SCHWEGMAN LUNDBERG & WOESSNER P.A.
P.O. BOX 2938
MINNEAPOLIS, MN 55402
Assignment: 15
Reel/Frame:045768/0495   Pages: 6
Recorded: 05/10/2018
Attorney Dkt #:16010-174 LAB
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAO, HEMAN LAP MAN
Exec Dt:
02/08/2018
2
WONG, WAH YAU
Exec Dt:
02/02/2018
3
TIAN, BAOMIN
Exec Dt:
02/02/2018
4
UGER, MARNI DIANE
Exec Dt:
02/08/2018
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET
SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11466088
US20180230219
15862015
Correspondence name and address
LOLA BARTOSZEWICZ
BROOKFIELD PLACE,
181 BAY STREET, SUITE 1800
TORONTO, M5J 2T9 CANADA
Assignment: 16
Reel/Frame:045768/0764   Pages: 6
Recorded: 05/10/2018
Attorney Dkt #:16010-174 LAB
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAO, HEMAN LAP MAN
Exec Dt:
02/08/2018
2
WONG, WAH YAU
Exec Dt:
02/02/2018
3
TIAN, BAOMIN
Exec Dt:
02/02/2018
4
UGER, MARNI DIANE
Exec Dt:
02/08/2018
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET
SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11466088
US20180230219
15862015
Correspondence name and address
LOLA BARTOSZEWICZ
BROOKFIELD PLACE,
181 BAY STREET, SUITE 1800
TORONTO, M5J 2T9 CANADA
Assignment: 17
Reel/Frame:047174/0373   Pages: 6
Recorded: 10/16/2018
Attorney Dkt #:16010-176 LAB
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAO, HEMAN LAP MAN
Exec Dt:
02/08/2018
2
WONG, WAH YAU
Exec Dt:
02/02/2018
3
TIAN, BAOMIN
Exec Dt:
02/02/2018
4
UGER, MARNI DIANE
Exec Dt:
02/08/2018
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET
SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180243437
15861951
Correspondence name and address
LOLA BARTOSZEWICZ
BROOKFIELD PLACE
181 BAY STREET, SUITE 1800
TORONTO, M5J 2T9 CANADA
Assignment: 18
Reel/Frame:047175/0387   Pages: 6
Recorded: 10/16/2018
Attorney Dkt #:16010-176 LAB
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAO, HEMAN LAP MAN
Exec Dt:
02/08/2018
2
WONG, WAH YAU
Exec Dt:
02/02/2018
3
TIAN, BAOMIN
Exec Dt:
02/02/2018
4
UGER, MARNI DIANE
Exec Dt:
02/08/2018
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET
SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180243437
15861951
Correspondence name and address
LOLA BARTOSZEWICZ
AIRD & MCBURNEY LP, BROOKFIELD PLACE
181 BAY STREET, SUITE 1800
TORONTO, M5J 2T9 CANADA
Assignment: 19
Reel/Frame:048842/0195   Pages: 6
Recorded: 04/10/2019
Attorney Dkt #:16010-172 LAB
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAO, HEMAN LAP MAN
Exec Dt:
02/08/2018
2
WONG, WAH YAU
Exec Dt:
02/02/2018
3
TIAN, BAOMIN
Exec Dt:
02/02/2018
4
UGER, MARNI DIANE
Exec Dt:
02/08/2018
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET
SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180244784
15862006
Correspondence name and address
LOLA A BARTOSZEWICZ
BROOKFIELD PLACE, 181 BAY STREET
SUITE 1800
TORONTO, M5J 2T9 CANADA
Assignment: 20
Reel/Frame:048842/0384   Pages: 6
Recorded: 04/10/2019
Attorney Dkt #:16010-172 LAB
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAO, HEMAN LAP MAN
Exec Dt:
02/08/2018
2
WONG, WAH YAU
Exec Dt:
02/02/2018
3
TIAN, BAOMIN
Exec Dt:
02/02/2018
4
UGER, MARNI DIANE
Exec Dt:
02/08/2018
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET
SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180244784
15862006
Correspondence name and address
LOLA A BARTOSZEWICZ
BROOKFIELD PLACE, 181 BAY STREET
SUITE 1800
TORONTO, M5J 2T9 CANADA
Assignment: 21
Reel/Frame:048842/0504   Pages: 6
Recorded: 04/10/2019
Attorney Dkt #:16010-172 LAB
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAO, HEMAN LAP MAN
Exec Dt:
02/08/2018
2
WONG, WAH YAU
Exec Dt:
02/02/2018
3
TIAN, BAOMIN
Exec Dt:
02/02/2018
4
UGER, MARNI DIANE
Exec Dt:
02/08/2018
Assignee
1
HELIX BIOPHARMA CORP.
9120 LESLIE STREET
SUITE 205
RICHMOND HILL, CANADA L4B 3J9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180244784
15862006
Correspondence name and address
LOLA A BARTOSZEWICZ
BROOKFIELD PLACE, 181 BAY STREET
SUITE 1800
TORONTO, M5J 2T9 CANADA

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