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Patent Assignment Assignor Details
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Assignor Name : CHENG, HENG
Total Assignments: 17
Assignment: 1
Reel/Frame:018566/0786   Pages: 6
Recorded: 11/30/2006
Attorney Dkt #:310477-1251
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TURTLE, ERIC D.
Exec Dt:
11/10/2006
2
FLIPPIN, LEE A.
Exec Dt:
10/25/2006
3
AREND, MICHAEL P.
Exec Dt:
10/26/2006
4
CHENG, HENG
Exec Dt:
11/16/2006
Assignee
1
FIBROGEN, INC.
225 GATEWAY BLVD.
SOUTH SAN FRANCISCO, CALIFORNIA 94080
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8703795
US20060199836
11367969
Correspondence name and address
LORNA L. TANNER
1530 PAGE MILL ROAD
PALO ALTO, CA 94304
Assignment: 2
Reel/Frame:033433/0033   Pages: 6
Recorded: 07/31/2014
Attorney Dkt #:19TF-191837-US2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TURTLE, ERIC D.
Exec Dt:
11/10/2006
2
FLIPPIN, LEE A.
Exec Dt:
10/25/2006
3
AREND, MICHAEL P.
Exec Dt:
10/26/2006
4
CHENG, HENG
Exec Dt:
11/16/2006
Assignee
1
FIBROGEN, INC.
225 GATEWAY BLVD.
SOUTH SAN FRANCISCO, CALIFORNIA 94080
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9000006
US20140221422
14249281
Correspondence name and address
SHEPPARD MULLIN RICHTER & HAMPTON LLP
379 LYTTON AVE.
PALO ALTO, CA 94301
Assignment: 3
Reel/Frame:023695/0041   Pages: 8
Recorded: 12/23/2009
Attorney Dkt #:310477-1401
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DENG, SHAOJIANG
Exec Dt:
12/10/2009
2
WU, MIN
Exec Dt:
12/10/2009
3
TURTLE, ERIC D.
Exec Dt:
07/22/2009
4
HO, WEN-BIN
Exec Dt:
12/09/2009
5
AREND, MICHAEL P.
Exec Dt:
12/09/2009
6
FLIPPIN, LEE A.
Exec Dt:
12/09/2009
7
CHENG, HENG
Exec Dt:
01/08/2008
Assignee
1
FIBROGEN, INC.
409 ILLINOIS STREET
SAN FRANCISCO, CALIFORNIA 94158
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7696223
US20080004309
11696549
Correspondence name and address
LORNA L. TANNER
SWISS TANNER, P.C.
P.O. BOX 1749
LOS ALTOS, CA 94023
Assignment: 4
Reel/Frame:025933/0275   Pages: 9
Recorded: 03/10/2011
Attorney Dkt #:310477-1751
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
AREND, MICHAEL P.
Exec Dt:
03/04/2011
2
CHENG, HENG
Exec Dt:
06/12/2010
3
FLIPPIN, LEE A.
Exec Dt:
03/02/2011
4
NG, DANNY
Exec Dt:
03/03/2011
5
TURTLE, ERIC D.
Exec Dt:
06/17/2010
6
WU, MIN
Exec Dt:
03/07/2011
Assignee
1
FIBROGEN, INC.
409 ILLINOIS STREET
SAN FRANCISCO, CALIFORNIA 94518
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8269008
US20100303928
12734895
Correspondence name and address
LORNA L. TANNER
FOLEY & LARDNER LLP
975 PAGE MILL ROAD
PALO ALTO, CA 94304
Assignment: 5
Reel/Frame:025353/0198   Pages: 6
Recorded: 11/11/2010
Attorney Dkt #:M00232-US-NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, HENG
Exec Dt:
10/12/2010
2
CONG, QIANG
Exec Dt:
10/12/2010
3
GANGWAR, SANJEEV
Exec Dt:
11/11/2010
4
ZHANG, QIAN
Exec Dt:
10/12/2010
Assignee
1
MEDAREX, INC.
RT. 206 & PROVINCE LINE ROAD
PRINCETON, NEW JERSEY 08543-4000
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8394922
US20110027274
12846493
Correspondence name and address
MEDAREX, INC.
RT. 206 & PROVINCE LINE ROAD
PRINCETON, NJ 08543-4000
Assignment: 6
Reel/Frame:032787/0884   Pages: 6
Recorded: 04/30/2014
Attorney Dkt #:M00232-US-DIV/DIV2/DIV3
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, HENG
Exec Dt:
10/12/2010
2
CONG, QIANG
Exec Dt:
10/12/2010
3
GANGWAR, SANJEEV
Exec Dt:
11/11/2010
4
ZHANG, QIAN
Exec Dt:
10/12/2010
Assignee
1
MEDAREX, INC.
RT. 206 & PROVINCE LINE ROAD
PRINCETON, NEW JERSEY 08543-4000
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
8802632
US20130189256
13752619
 
8772542
US20130197259
13752664
 
8772543
US20130204033
13752721
Correspondence name and address
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 & PROVINCE LINE ROAD
PRINCETON, NJ 08540
Assignment: 7
Reel/Frame:032576/0100   Pages: 4
Recorded: 04/01/2014
Attorney Dkt #:12026-US-NP[2]
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CONG, QIANG
Exec Dt:
03/31/2014
2
CHENG, HENG
Exec Dt:
04/01/2014
3
GANGWAR, SANJEEV
Exec Dt:
03/31/2014
Assignee
1
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 & PROVINCE LINE ROAD
PRINCETON, NEW JERSEY 08543-4000
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9109008
US20140227298
14177498
Correspondence name and address
BRISTOL-MYERS SQUIBB COMPANY
RT. 206 & PROVINCE LINE ROAD
PRINCETON, NJ 08543-4000
Assignment: 8
Reel/Frame:032576/0169   Pages: 4
Recorded: 04/01/2014
Attorney Dkt #:12026-US-NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CONG, QIANG
Exec Dt:
03/31/2014
2
GANGWAR, SANJEEV
Exec Dt:
03/31/2014
3
CHENG, HENG
Exec Dt:
04/01/2014
Assignee
1
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 & PROVINCE LINE ROAD
PRINCETON, NEW JERSEY 08543-4000
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8980824
US20140227295
14177376
Correspondence name and address
BRISTOL-MYERS SQUIBB COMPANY
RT. 206 & PROVINCE LINE ROAD
PRINCETON, NJ 08543-4000
Assignment: 9
Reel/Frame:035161/0302   Pages: 4
Recorded: 03/13/2015
Attorney Dkt #:12026-US-DIV
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CONG, QIANG
Exec Dt:
03/31/2014
2
CHENG, HENG
Exec Dt:
04/01/2014
3
GANGWAR, SANJEEV
Exec Dt:
04/01/2014
Assignee
1
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 & PROVINCE LINE ROAD
PRINCETON, NEW JERSEY 08543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9382289
US20150132324
14605549
Correspondence name and address
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 & PROVINCE LINE ROAD
PRINCETON, NJ 08543
Assignment: 10
Reel/Frame:039538/0282   Pages: 4
Recorded: 08/25/2016
Attorney Dkt #:12026-US-CNT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CONG, QIANG
Exec Dt:
03/31/2014
2
CHENG, HENG
Exec Dt:
04/01/2014
3
GANGWAR, SANJEEV
Exec Dt:
03/31/2014
Assignee
1
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 AND PROVINCE LINE ROAD
PRINCETON, NEW JERSEY 08543-4000
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9688721
US20160264624
15171592
Correspondence name and address
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 AND PROVINCE LINE ROAD
PRINCETON, NJ 08540
Assignment: 11
Reel/Frame:042920/0098   Pages: 4
Recorded: 07/06/2017
Attorney Dkt #:12026-US-CNT[3]
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CONG, QIANG
Exec Dt:
03/31/2014
2
CHENG, HENG
Exec Dt:
04/01/2014
3
GANGWAR, SANJEEV
Exec Dt:
03/31/2014
Assignee
1
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 AND PROVINCE LINE ROAD
PRINCETON, NEW JERSEY 08543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20170260232
15602156
Correspondence name and address
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 AND PROVINCE LINE ROAD
PRINCETON, NJ 08543
Assignment: 12
Reel/Frame:037222/0889   Pages: 10
Recorded: 12/07/2015
Attorney Dkt #:12387-US-NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PEREZ, HEIDI L.
Exec Dt:
11/19/2015
2
WEI, DONNA
Exec Dt:
12/03/2015
3
BORZILLERI, ROBERT M.
Exec Dt:
11/17/2015
4
GANGWAR, SANJEEV
Exec Dt:
11/17/2015
5
SCHROEDER, GRETCHEN M.
Exec Dt:
12/04/2015
6
CHENG, HENG
Exec Dt:
11/17/2015
7
SCHMIDT, ROBERT J.
Exec Dt:
11/17/2015
Assignee
1
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 & PROVINCE LINE ROAD
PRINCETON, NEW JERSEY 08543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10077287
US20160130299
14833422
Correspondence name and address
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 & PROVINCE LINE ROAD
PRINCETON, CA 08543
Assignment: 13
Reel/Frame:045231/0319   Pages: 10
Recorded: 03/15/2018
Attorney Dkt #:12834-US-NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MCDONALD, IVAR M.
Exec Dt:
02/09/2018
2
SIVAPRAKASAM, PRASANNA
Exec Dt:
02/14/2018
3
IWUAGWU, CHRISTIANA I.
Exec Dt:
02/09/2018
4
PEESE, KEVIN M.
Exec Dt:
02/17/2018
5
CHENG, HENG
Exec Dt:
02/12/2018
6
CHOWDARI, NAIDU S.
Exec Dt:
02/12/2018
7
GANGWAR, SANJEEV
Exec Dt:
02/12/2018
Assignee
1
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 AND PROVINCE LINE ROAD
PRINCETON, NEW JERSEY 08543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10398783
US20180110873
15789027
Correspondence name and address
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 AND PROVINCE LINE ROAD
PRINCETON, NJ 08543
Assignment: 14
Reel/Frame:051739/0865   Pages: 10
Recorded: 02/06/2020
Attorney Dkt #:12834-US-CNT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MCDONALD, IVAR M.
Exec Dt:
02/09/2018
2
SIVAPRAKASAM, PRASANNA
Exec Dt:
02/14/2018
3
IWUAGWU, CHRISTIANA I.
Exec Dt:
02/09/2018
4
PEESE, KEVIN M.
Exec Dt:
02/17/2018
5
CHENG, HENG
Exec Dt:
02/12/2018
6
CHOWDARI, NAIDU S.
Exec Dt:
02/12/2018
7
GANGWAR, SANJEEV
Exec Dt:
02/12/2018
Assignee
1
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 AND PROVINCE LINE ROAD
PRINCETON, NEW JERSEY 08543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10869934
US20190358339
16533226
Correspondence name and address
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 AND PROVINCE LINE ROAD
PRINCETON, NJ 08543
Assignment: 15
Reel/Frame:061418/0001   Pages: 12
Recorded: 10/13/2022
Attorney Dkt #:13310-US-PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, HENG
Exec Dt:
09/03/2021
2
TARBY, CHRISTINE M.
Exec Dt:
09/08/2021
3
GANGWAR, SANJEEV
Exec Dt:
09/01/2021
4
GAVAI, ASHVINIKUMAR V.
Exec Dt:
08/31/2021
5
JOHNSON, WALTER L.
Exec Dt:
08/31/2021
6
POUDEL, YAM B.
Exec Dt:
08/31/2021
7
SIVAPRAKASAM, PRASANNA
Exec Dt:
09/01/2021
8
DONNELL, ANDREW F.
Exec Dt:
09/01/2021
9
GILL, PATRICE
Exec Dt:
08/31/2021
Assignee
1
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 AND PROVINCE LINE ROAD
PRINCETON, NEW JERSEY 08543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230118688
17792869
Correspondence name and address
BRISTOL-MYERS SQUIBB COMPANY
ROUTE 206 AND PROVINCE LINE ROAD
PRINCETON, NJ 08543
Assignment: 16
Reel/Frame:059885/0584   Pages: 18
Recorded: 05/10/2022
Attorney Dkt #:58294-722.201
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEDINA, JULIO CESAR
Exec Dt:
05/09/2022
2
NERURKAR, ALOK
Exec Dt:
04/25/2022
3
SADLOWSKI, CORINNE
Exec Dt:
04/26/2022
4
SEIDL, FREDERICK
Exec Dt:
04/22/2022
5
CHENG, HENG
Exec Dt:
04/21/2022
6
LEE, JOHN
Exec Dt:
04/26/2022
7
HOLAN, MARTIN
Exec Dt:
04/22/2022
8
DING, PINGYU
Exec Dt:
04/21/2022
9
WANG, XIAODONG
Exec Dt:
04/24/2022
10
WIDJAJA, TIEN
Exec Dt:
04/20/2022
11
NGUYEN, THOMAS
Exec Dt:
04/29/2022
12
BHATT, ULHAS
Exec Dt:
04/25/2022
13
LI, YIHONG
Exec Dt:
04/25/2022
14
WEI, ZHI-LIANG
Exec Dt:
04/23/2022
Assignee
1
R2M PHARMA, INC.
600 GATEWAY BOULEVARD
SUITE 100
SOUTH SAN FRANCISCO, CALIFORNIA 94080
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11634396
US20220356157
17714030
Correspondence name and address
WILSON SONSINI GOODRICH & ROSATI
650 PAGE MILL ROAD
PALO ALTO, CA 94304
Assignment: 17
Reel/Frame:062697/0659   Pages: 18
Recorded: 02/14/2023
Attorney Dkt #:58294-722.401
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEDINA, JULIO CESAR
Exec Dt:
05/09/2022
2
NERURKAR, ALOK
Exec Dt:
04/25/2022
3
SADLOWSKI, CORINNE
Exec Dt:
04/26/2022
4
SEIDL, FREDERICK
Exec Dt:
04/22/2022
5
CHENG, HENG
Exec Dt:
04/21/2022
6
LEE, JOHN
Exec Dt:
04/26/2022
7
HOLAN, MARTIN
Exec Dt:
04/22/2022
8
DING, PINGYU
Exec Dt:
04/21/2022
9
WANG, XIAODONG
Exec Dt:
04/24/2022
10
WIDJAJA, TIEN
Exec Dt:
04/20/2022
11
NGUYEN, THOMAS
Exec Dt:
04/29/2022
12
BHATT, ULHAS
Exec Dt:
04/25/2022
13
LI, YIHONG
Exec Dt:
04/25/2022
14
WEI, ZHI-LIANG
Exec Dt:
04/23/2022
Assignee
1
R2M PHARMA, INC.
600 GATEWAY BLVD.
SUITE 100
SOUTH SAN FRANCISCO, CALIFORNIA 94080
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20240092746
18168155
Correspondence name and address
WILSON SONSINI GOODRICH & ROSATI
650 PAGE MILL ROAD
PALO ALTO, CA 94304-1050

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