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 : KEEFE, ANTHONY D.
Total Assignments: 15
Assignment: 1
Reel/Frame:015937/0765   Pages: 5
Recorded: 11/01/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SZOSTAK, JACK W.
Exec Dt:
09/21/2004
2
WILSON, DAVID S.
Exec Dt:
09/20/2004
3
KEEFE, ANTHONY D.
Exec Dt:
09/20/2004
Assignee
1
GENERAL HOSPITAL CORPORATION, THE
55 FRUIT STREET
BOSTON, MASSACHUSETTS 02114
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6841359
US20020155578
10004381
Correspondence name and address
CLARK & ELBING LLP
101 FEDERAL STREET
BOSTON, MA 02110
Assignment: 2
Reel/Frame:032304/0314   Pages: 6
Recorded: 02/26/2014
Attorney Dkt #:50719-006WO3, -US2, -US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KEEFE, ANTHONY D.
Exec Dt:
02/26/2014
2
WAGNER, RICHARD W.
Exec Dt:
02/26/2014
3
LITOVCHICK, ALEXANDER
Exec Dt:
02/26/2014
4
CLARK, MATTHEW
Exec Dt:
02/26/2014
5
CUOZZO, JOHN W.
Exec Dt:
02/26/2014
6
ZHANG, YING
Exec Dt:
02/26/2014
7
CENTRELLA, PAOLO A.
Exec Dt:
02/26/2014
8
HUPP, CHRISTOPHER D.
Exec Dt:
02/26/2014
Assignee
1
X-CHEM, INC.
100 BEAVER STREET, SUITE 101
WALTHAM, MASSACHUSETTS 02453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10865409
NONE
14343306
Correspondence name and address
CLARK & ELBING LLP
101 FEDERAL STREET
15TH FLOOR
BOSTON, MA 02110
Assignment: 3
Reel/Frame:032852/0625   Pages: 6
Recorded: 05/08/2014
Attorney Dkt #:50719-006003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KEEFE, ANTHONY D.
Exec Dt:
02/26/2014
2
WAGNER, RICHARD W.
Exec Dt:
02/26/2014
3
LITOVCHICK, ALEXANDER
Exec Dt:
02/26/2014
4
CLARK, MATTHEW
Exec Dt:
02/26/2014
5
CUOZZO, JOHN W.
Exec Dt:
02/26/2014
6
ZHANG, YING
Exec Dt:
02/26/2014
7
CENTRELLA, PAOLO A.
Exec Dt:
02/26/2014
8
HUPP, CHRISTOPHER D.
Exec Dt:
02/26/2014
Assignee
1
X-CHEM, INC.
100 BEAVER STREET, SUITE 101
WALTHAM, MASSACHUSETTS 02453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10865409
US20140315762
14343306
Correspondence name and address
CLARK & ELBING LLP
101 FEDERAL STREET
15TH FLOOR
BOSTON, MA 02110
Assignment: 4
Reel/Frame:055490/0655   Pages: 6
Recorded: 03/04/2021
Attorney Dkt #:50719-006004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KEEFE, ANTHONY D.
Exec Dt:
02/26/2014
2
WAGNER, RICHARD W.
Exec Dt:
02/26/2014
3
LITOVCHICK, ALEXANDER
Exec Dt:
02/26/2014
4
CLARK, MATTHEW
Exec Dt:
02/26/2014
5
CUOZZO, JOHN W.
Exec Dt:
02/26/2014
6
ZHANG, YING
Exec Dt:
02/26/2014
7
CENTRELLA, PAOLO A.
Exec Dt:
02/26/2014
8
HUPP, CHRISTOPHER D.
Exec Dt:
02/26/2014
Assignee
1
X-CHEM, INC.
100 BEAVER STREET, SUITE 101
WALTHAM, MASSACHUSETTS 02453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20210002630
16869271
Correspondence name and address
CLARK & ELBING LLP
101 FEDERAL STREET
15TH FLOOR
BOSTON, MA 02110
Assignment: 5
Reel/Frame:034665/0631   Pages: 3
Recorded: 01/08/2015
Attorney Dkt #:50719-021WO2/US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KEEFE, ANTHONY D.
Exec Dt:
01/07/2015
2
CLARK, MATTHEW A.
Exec Dt:
01/07/2015
3
LITOVCHICK, ALEXANDER
Exec Dt:
01/07/2015
Assignee
1
X-CHEM, INC.
100 BEAVER STREET, SUITE 101
WALTHAM, MASSACHUSETTS 02453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11674135
US20150211002
14414326
Correspondence name and address
CLARK & ELBING LLP
101 FEDERAL STREET
15TH FLOOR
BOSTON, MA 02110
Assignment: 6
Reel/Frame:045054/0312   Pages: 5
Recorded: 02/27/2018
Attorney Dkt #:50920-007002,-007003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CLARK, MATTHEW A.
Exec Dt:
07/31/2015
2
KEEFE, ANTHONY D.
Exec Dt:
07/31/2015
3
ZHANG, YING
Exec Dt:
07/31/2015
Assignee
1
X-CHEM, INC.
100 BEAVER STREET, SUITE 101
WALTHAM, MASSACHUSETTS 02453
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
10011601
US20170166568
15300762
 
10233182
US20180282332
15896905
Correspondence name and address
CLARK & ELBING LLP
101 FEDERAL STREET
15TH FLOOR
BOSTON, MA 02110
Assignment: 7
Reel/Frame:049539/0776   Pages: 4
Recorded: 06/20/2019
Attorney Dkt #:50920-007004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CLARK, MATTHEW A.
Exec Dt:
07/31/2015
2
KEEFE, ANTHONY D.
Exec Dt:
07/31/2015
3
ZHANG, YING
Exec Dt:
07/31/2015
Assignee
1
X-CHEM, INC.
100 BEAVER STREET
SUITE 101
WALTHAM, MASSACHUSETTS 02453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20190225611
16256429
Correspondence name and address
CLARK + ELBING LLP
101 FEDERAL ST, 15TH FLOOR
BOSTON, MA 02110
Assignment: 8
Reel/Frame:051480/0184   Pages: 4
Recorded: 01/10/2020
Attorney Dkt #:50719-033002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KEEFE, ANTHONY D.
Exec Dt:
11/23/2015
2
LITOVCHICK, ALEXANDER
Exec Dt:
11/23/2015
3
CLARK, MATTHEW
Exec Dt:
11/23/2015
4
WAGNER, RICHARD W.
Exec Dt:
11/23/2015
Assignee
1
X-CHEM, INC.
100 BEAVER STREET, SUITE 101
WALTHAM, MASSACHUSETTS 02453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180002688
15540284
Correspondence name and address
CLARK + ELBING LLP
101 FEDERAL STREET, 15TH FLOOR
BOSTON, MA 02110
Assignment: 9
Reel/Frame:051480/0357   Pages: 4
Recorded: 01/10/2020
Attorney Dkt #:50719-033WO2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KEEFE, ANTHONY D.
Exec Dt:
11/23/2015
2
LITOVCHICK, ALEXANDER
Exec Dt:
11/23/2015
3
CLARK, MATTHEW
Exec Dt:
11/23/2015
4
WAGNER, RICHARD W.
Exec Dt:
11/23/2015
Assignee
1
X-CHEM, INC.
100 BEAVER STREET, SUITE 101
WALTHAM, MASSACHUSETTS 02453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180002688
15540284
Correspondence name and address
CLARK + ELBING LLP
101 FEDERAL STREET, 15TH FLOOR
BOSTON, MA 02110
Assignment: 10
Reel/Frame:041157/0843   Pages: 4
Recorded: 02/02/2017
Attorney Dkt #:50719-021002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KEEFE, ANTHONY D.
Exec Dt:
01/07/2016
2
LITOVCHICK, ALEXANDER
Exec Dt:
01/07/2016
3
CLARK, MATTHEW
Exec Dt:
01/07/2016
Assignee
1
X-CHEM, INC.
100 BEAVER STREET, SUITE 101
WALTHAM, MASSACHUSETTS 02453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11674135
US20150211002
14414326
Correspondence name and address
CLARK & ELBING LLP
101 FEDERAL STREET
15TH FLOOR
BOSTON, MA 02110
Assignment: 11
Reel/Frame:038217/0520   Pages: 11
Recorded: 04/07/2016
Attorney Dkt #:50719-034001,2,3 035001,2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KEEFE, ANTHONY D.
Exec Dt:
04/04/2016
2
WAGNER, RICHARD W.
Exec Dt:
04/04/2016
3
CLARK, MATTHEW
Exec Dt:
04/04/2016
4
ZHANG, YING
Exec Dt:
04/04/2016
5
GIKUNJU, DIANA
Exec Dt:
04/04/2016
6
CUOZZO, JOHN
Exec Dt:
04/04/2016
7
THOMSON, HEATHER
Exec Dt:
04/06/2016
Assignee
1
X-CHEM, INC.
100 BEAVER STREET, SUITE 101
WALTHAM, MASSACHUSETTS 02453
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
9394256
US20150005345
14370854
 
9394296
US20150005310
14370879
Correspondence name and address
CLARK & ELBING LLP
101 FEDERAL STREET
15TH FLOOR
BOSTON, MA 02110
Assignment: 12
Reel/Frame:051480/0932   Pages: 11
Recorded: 01/10/2020
Attorney Dkt #:50719-034WO3, -035WO2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KEEFE, ANTHONY D.
Exec Dt:
04/04/2016
2
WAGNER, RICHARD W.
Exec Dt:
04/04/2016
3
CLARK, MATTHEW
Exec Dt:
04/04/2016
4
ZHANG, YING
Exec Dt:
04/04/2016
5
GIKUNJU, DIANA
Exec Dt:
04/04/2016
6
CUOZZO, JOHN
Exec Dt:
04/04/2016
7
THOMSON, HEATHER
Exec Dt:
04/06/2016
Assignee
1
X-CHEM, INC.
100 BEAVER STREET, SUITE 101
WALTHAM, MASSACHUSETTS 02453
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
NONE
US20150005345
14370854
 
NONE
US20150005310
14370879
Correspondence name and address
CLARK + ELBING LLP
101 FEDERAL STREET, 15TH FLOOR
BOSTON, MA 02110
Assignment: 13
Reel/Frame:046964/0523   Pages: 6
Recorded: 09/25/2018
Attorney Dkt #:50719-031002, -031003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, YING
Exec Dt:
08/08/2018
2
KEEFE, ANTHONY D.
Exec Dt:
08/08/2018
3
DUMELIN, CHRISTOPH
Exec Dt:
08/14/2018
Assignee
1
X-CHEM, INC.
100 BEAVER STREET, SUITE 101
WALTHAM, MASSACHUSETTS 02453
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
10081616
US20170240526
15504223
 
NONE
US20180362499
16110698
Correspondence name and address
CLARK & ELBING LLP
101 FEDERAL STREET
15TH FLOOR
BOSTON, MA 02110
Assignment: 14
Reel/Frame:051480/0974   Pages: 5
Recorded: 01/10/2020
Attorney Dkt #:50719-031WO2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, YING
Exec Dt:
08/08/2018
2
KEEFE, ANTHONY D.
Exec Dt:
08/08/2018
3
DUMELIN, CHRISTOPH
Exec Dt:
08/14/2018
Assignee
1
X-CHEM, INC.
100 BEAVER STREET, SUITE 101
WALTHAM, MASSACHUSETTS 02453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20170240526
15504223
Correspondence name and address
CLARK + ELBING LLP
101 FEDERAL STREET, 15TH FLOOR
BOSTON, MA 02110
Assignment: 15
Reel/Frame:051480/0522   Pages: 9
Recorded: 01/10/2020
Attorney Dkt #:50719-037002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CLARK, MATTHEW
Exec Dt:
10/22/2018
2
KEEFE, ANTHONY D.
Exec Dt:
10/15/2018
3
GUILINGER, JOHN
Exec Dt:
10/22/2018
4
ZHANG, YING
Exec Dt:
10/22/2018
5
TIAN, XIA
Exec Dt:
10/22/2018
Assignee
1
X-CHEM, INC.
100 BEAVER STREET, SUITE 101
WALTHAM, MASSACHUSETTS 02453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20200339562
16097093
Correspondence name and address
CLARK + ELBING LLP
101 FEDERAL STREET, 15TH FLOOR
BOSTON, MA 02110

Search Results as of: 05/25/2024 11:47 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