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

Assignor Name : CHAO, HEMAN
Total Assignments: 12
Assignment: 1
Reel/Frame:010780/0192   Pages: 5
Recorded: 07/12/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WONG, WAH Y.
Exec Dt:
06/20/2000
2
CHAO, HEMAN
Exec Dt:
06/20/2000
3
SEGAL, DONALD
Exec Dt:
07/06/2000
4
MCELROY, JERRY
Exec Dt:
07/06/2000
Assignee
1
HELIX BIOPHARMA CORPORATION
30-305 INDUSTRIAL PARKWAY SOUTH
AURORA, ONTARIO, CANADA L4G 6
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6787368
NONE
09517597
Correspondence name and address
IOTA PI LAW GROUP
GREGORY L. HEINKEL
P.O. BOX 60850
PALO ALTO, CA 94306
Assignment: 2
Reel/Frame:010780/0197   Pages: 6
Recorded: 07/12/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SEGAL, DONALD
Exec Dt:
07/06/2000
2
CHAO, HEMAN
Exec Dt:
06/20/2000
3
WONG, WAH Y.
Exec Dt:
06/21/2000
4
MCELROY, JERRY
Exec Dt:
07/06/2000
Assignee
1
HELIX BIOPHARMA CORPORATION
3-305 INDUSTRIAL PARKWAY SOUTH
AURORA, ONTARIO, CANADA L4G 6
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6300141
NONE
09518178
Correspondence name and address
IOTA PI LAW GROUP
GREGORY L. HEINKEL
P.O. BOX 60850
PALO ALTO, CA 94306
Assignment: 3
Reel/Frame:013820/0793   Pages: 4
Recorded: 03/10/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAO, HEMAN
Exec Dt:
02/18/2003
2
WONG, WAH Y.
Exec Dt:
02/13/2003
3
TIAN, BAOMIN
Exec Dt:
02/13/2003
4
SEGAL, DONALD
Exec Dt:
02/18/2003
5
MCELROY, JERRY
Exec Dt:
02/18/2003
Assignee
1
HELIX BIOPHARMA CORPORATION
305 INDUSTRIAL PARKWAY SOUTH
UNIT 3
AURORA, ONTARIO, CANADA L4G 6X7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20030143576
10225788
Correspondence name and address
HELIX BIOPHARMA CORPORATION
305 INDUSTRIAL PARKWAY, SOUTH
UNIT 3
ONTARIO, CAX L4G 6X7
Assignment: 4
Reel/Frame:015189/0020   Pages: 7
Recorded: 04/08/2004
Conveyance: CORRECTIVE COVER SHEET TO CORRECT INVENTOR'S NAME, PREVIOUSLY RECORDED AT REEL/FRAME 014418/0730 (ASSIGNMENT OF ASSIGNOR'S INTEREST)
Assignors
1
CHAO, HEMAN
Exec Dt:
07/31/2003
2
WONG, WAH Y.
Exec Dt:
08/06/2003
3
TIAN, BAOMIN
Exec Dt:
08/06/2003
4
SEGAL, DONALD
Exec Dt:
07/31/2003
5
MCELROY, JERRY
Exec Dt:
07/31/2003
Assignee
1
HELIX BIOPHARMA CORPORATION
305 INDUSTRIAL PARKWAY SOUTH
UNIT 3
AURORA, ONTARIO, CANADA L4G 6X7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20040014946
10422561
Correspondence name and address
PERKINS COIE LLP
P.O. BOX 2168
MENLO PARK, CA 94026
Assignment: 5
Reel/Frame:014895/0568   Pages: 6
Recorded: 01/20/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SEGAL, DON
Exec Dt:
12/22/2003
2
MCELROY, JERRY
Exec Dt:
12/18/2003
3
CHAO, HEMAN
Exec Dt:
12/22/2003
4
WONG, WAH
Exec Dt:
12/23/2003
5
DOCHERTY, JOHN
Exec Dt:
12/18/2003
6
DICKSTEIN, JODI
Exec Dt:
12/10/2003
Assignee
1
HELIX BIOPHARMA CORPORATION
3-305 INDUSTRIAL PARKWAY SOUTH
AURORA, ONTARIO, CANADA L46 6X7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7211250
US20040115186
10621833
Correspondence name and address
PERKINS COIE LLP
P.O. BOX 2168
MENLO PARK, CA 94026
Assignment: 6
Reel/Frame:016558/0488   Pages: 6
Recorded: 05/16/2005
Attorney Dkt #:54800-8023.US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SEGAL, DON
Exec Dt:
05/05/2005
2
MCELROY, JERRY
Exec Dt:
05/05/2005
3
CHAO, HEMAN
Exec Dt:
05/05/2005
4
WONG, WAH
Exec Dt:
05/05/2005
5
DOCHERTY, JOHN
Exec Dt:
05/05/2005
6
DICKSTEIN, JODI
Exec Dt:
05/05/2005
Assignee
1
HELIX BIOPHARMA CORPORATION
3-305 INDUSTRIAL PARKWAY SOUTH
AURORA, ONTARIO, CANADA L46 6X7
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7264800
US20050196391
11046271
Correspondence name and address
PERKINS COIE LLP
P.O. BOX 2168
MENLO PARK, CA 94026
Assignment: 7
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: 8
Reel/Frame:043856/0287   Pages: 9
Recorded: 10/13/2017
Attorney Dkt #:10914-26/SIMM0001PA
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAO, HEMAN
Exec Dt:
07/20/2017
2
WONG, WAH YAU
Exec Dt:
07/20/2017
3
TIAN, BAOMIN
Exec Dt:
07/20/2017
4
GASPAR, KIMBERLY JAYNE
Exec Dt:
07/20/2017
5
KUMAR, PRAVEEN
Exec Dt:
07/20/2017
Assignee
1
HELIX BIOPHARMA CORPORATION
21 ST. CLAIR AVENUE EAST
SUITE 1100
TORONTO, CANADA M4T 1L9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11931422
US20180000963
15545549
Correspondence name and address
LINDA J. HOGGARTH
101 SOUTH FIFTH STREET
SUITE 2500
LOUISVILLE, KY 40202
Assignment: 9
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: 10
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: 11
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: 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

Search Results as of: 06/24/2024 01:47 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