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Patent Assignment Assignor Details
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Assignor Name : GUPTA, AMITABH
Total Assignments: 20
Assignment: 1
Reel/Frame:010058/0679   Pages: 5
Recorded: 06/30/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAKRAVARTI, SHRIKAR
Exec Dt:
06/04/1999
2
GUPTA, AMITABH
Exec Dt:
06/04/1999
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6165433
NONE
09329259
Correspondence name and address
PRAXAIR, INC.
MISS JOANN M. JELSA
LAW DEPARTMENT - M1 557
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810-5113
Assignment: 2
Reel/Frame:010058/0690   Pages: 5
Recorded: 06/30/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAKRAVARTI, SHRIKAR
Exec Dt:
06/04/1999
2
GUPTA, AMITABH
Exec Dt:
06/04/1999
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6146603
NONE
09329278
Correspondence name and address
PRAXAIR, INC.
MISS JOANN M. JELSA
LAW DEPARTMENT - M1 557
39 OLD RIDGEBURY ROAD
DANBURY, CT 06810-5113
Assignment: 3
Reel/Frame:010059/0189   Pages: 5
Recorded: 06/30/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAKRAVARTI, SHRIKAR
Exec Dt:
06/04/1999
2
GUPTA, AMITABH
Exec Dt:
06/04/1999
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6174506
NONE
09329279
Correspondence name and address
PRAXAIR, INC.
JOANN M. JELSA
LAW DEPARTMENT - M1 557
39 OLD RIDGEBURY ROAD
DANBURY, CT 06810-5113
Assignment: 4
Reel/Frame:011698/0816   Pages: 5
Recorded: 03/30/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAKRAVARTI, SHRIKAR
Exec Dt:
12/13/2000
2
GUPTA, AMITABH
Exec Dt:
12/15/2000
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6497852
US20020081256
09742451
Correspondence name and address
PRAXAIR, INC.
JOANN M. JELSA
LAW DEPARTMENT - M1 557
39 OLD RIDGEBURY ROAD
DANBURY, CT. 06810-5113
Assignment: 5
Reel/Frame:011557/0768   Pages: 5
Recorded: 02/21/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAKRAVARTI, SHRIKAR
Exec Dt:
01/21/2001
2
GUPTA, AMITABH
Exec Dt:
01/21/2001
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6592829
US20010026779
09774031
Correspondence name and address
PRAXAIR, INC.
JOANN M. JELSA
39 OLD RIDGEBURY ROAD
LAW DEPARTMENT - M1 557
DANBURY, CT 06810-5113
Assignment: 6
Reel/Frame:011698/0843   Pages: 5
Recorded: 03/29/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HEIM, CARL JOSEPH
Exec Dt:
01/31/2001
2
GUPTA, AMITABH
Exec Dt:
01/31/2001
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6669916
US20020150522
09780539
Correspondence name and address
PRAXAIR, INC.
JOANN M. JELSA
LAW DEPARTMENT - M1 557
39 OLD RIDGEBURY ROAD
DANBURY, CT. 06810-5113
Assignment: 7
Reel/Frame:017472/0024   Pages: 5
Recorded: 04/12/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAKRAVARTI, SHRIKAR
Exec Dt:
03/28/2006
2
GUPTA, AMITABH
Exec Dt:
04/06/2006
3
BURGERS, KENNETH LEROY
Exec Dt:
04/03/2006
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20070148070
11315065
Correspondence name and address
JOANN M. JELSA
PRAXAIR, INC.
LAW DEPARTMENT - MI 557
39 OLD RIDGEBURY ROAD
DANBURY, CT 06810
Assignment: 8
Reel/Frame:017552/0719   Pages: 6
Recorded: 04/28/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAKRAVARTI, SHRIKAR
Exec Dt:
03/28/2006
2
BURGERS, KENNETH LEROY
Exec Dt:
04/03/2006
3
GUPTA, AMITABH
Exec Dt:
04/06/2006
4
WILIAMS, WILLIAM ROBERT
Exec Dt:
04/24/2006
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20070148069
11315019
Correspondence name and address
JOANN M. JELSA
PRAXAIR, INC
LAW DEPARTMENT - MI 557
39 OLD RIDGEBURY ROAD
DANBURY, CT 06810
Assignment: 9
Reel/Frame:018705/0195   Pages: 6
Recorded: 01/03/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHAKRAVARTHY, VIJAYARAGHAVAN SRINIVASAN
Exec Dt:
12/12/2006
2
GUPTA, AMITABH
Exec Dt:
12/14/2006
3
CHENG, ALAN T.Y.
Exec Dt:
12/14/2006
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY RD.
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20080141715
11639569
Correspondence name and address
JOANN M. JELSA
LAW DEPARTMENT - M1-557
39 OLD RIDGEBURY RD.
DANBURY, CT 06810
Assignment: 10
Reel/Frame:018944/0492   Pages: 8
Recorded: 02/28/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CONNERY, KAREN ANNE
Exec Dt:
01/18/2007
2
NOVAK, RICHARD A.
Exec Dt:
01/17/2007
3
HO, SIMON
Exec Dt:
01/17/2007
4
GUPTA, AMITABH
Exec Dt:
01/17/2007
5
DE WILDE, ROBERT MARCEL
Exec Dt:
02/12/2007
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY RD.
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20080149226
11645443
Correspondence name and address
JOANN M. JELSA
LAW DEPARTMENT - M1-557
39 OLD RIDGEBURY RD.
DANBURY, CT 06810
Assignment: 11
Reel/Frame:018944/0558   Pages: 8
Recorded: 02/28/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CONNERY, KAREN ANNE
Exec Dt:
02/13/2007
2
NOVAK, RICHARD A.
Exec Dt:
02/13/2007
3
HO, SIMON
Exec Dt:
02/13/2007
4
GUPTA, AMITABH
Exec Dt:
02/20/2007
5
DE WILDE, ROBERT MARCEL
Exec Dt:
02/12/2007
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY RD.
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20080149227
11645447
Correspondence name and address
JOANN M. JELSA
LAW DEPARTMENT - MI-557
39 OLD RIDGEBURY RD.
DANBURY, CT 06810
Assignment: 12
Reel/Frame:020508/0794   Pages: 8
Recorded: 02/14/2008
Attorney Dkt #:21634-1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CONNERY, KAREN ANNE
Exec Dt:
12/13/2007
2
NOVAK, RICHARD A
Exec Dt:
12/13/2007
3
HO, SIMON
Exec Dt:
12/13/2007
4
GUPTA, AMITABH
Exec Dt:
12/13/2007
5
DEWILDE, ROBERT M
Exec Dt:
02/04/2008
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, FLORIDA 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20080149225
11959825
Correspondence name and address
PRAXAIR, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CT 06810
Assignment: 13
Reel/Frame:020925/0081   Pages: 6
Recorded: 05/09/2008
Attorney Dkt #:21679-R1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
NOVAK, RICHARD A.
Exec Dt:
04/29/2008
2
FABIYI, MALCOLM
Exec Dt:
04/29/2008
3
GUPTA, AMITABH
Exec Dt:
04/29/2008
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7699980
US20090050552
12117785
Correspondence name and address
PRAXAIR, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CT 06810
Assignment: 14
Reel/Frame:020925/0149   Pages: 6
Recorded: 05/09/2008
Attorney Dkt #:21679-R2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
NOVAK, RICHARD A.
Exec Dt:
04/29/2008
2
FABIYI, MALCOLM
Exec Dt:
04/29/2008
3
GUPTA, AMITABH
Exec Dt:
04/29/2008
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7699986
US20090050562
12117791
Correspondence name and address
PRAXAIR, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CT 06810
Assignment: 15
Reel/Frame:023186/0917   Pages: 8
Recorded: 09/03/2009
Attorney Dkt #:08-3031
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, ALAN T.Y.
Exec Dt:
08/17/2009
2
ZHOU, YING
Exec Dt:
08/17/2009
3
GUPTA, AMITABH
Exec Dt:
08/28/2009
4
HUNEK, BALAZS
Exec Dt:
08/17/2009
5
GRINTER, NIGEL
Exec Dt:
08/17/2009
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20100035342
12536577
Correspondence name and address
PRAXAIR, INC. LAW DEPARTMENT - M1 557
39 OLD RIDGEBURY ROAD
DANBURY, CT 06810-5113
Assignment: 16
Reel/Frame:023276/0830   Pages: 8
Recorded: 09/24/2009
Attorney Dkt #:08-3030
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, ALAN T.Y.
Exec Dt:
08/17/2009
2
ZHOU, YING
Exec Dt:
08/17/2009
3
GUPTA, AMITABH
Exec Dt:
08/31/2009
4
HUNEK, BALAZS
Exec Dt:
08/17/2009
5
GRINTER, NIGEL
Exec Dt:
08/17/2009
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8241904
US20100035343
12536559
Correspondence name and address
PRAXAIR, INC. LAW DEPARTMENT - M1 557
39 OLD RIDGEBURY ROAD
DANBURY, CT 06810-5113
Assignment: 17
Reel/Frame:024174/0566   Pages: 8
Recorded: 04/01/2010
Attorney Dkt #:08-3031-U-US-CIP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, ALAN T.Y.
Exec Dt:
02/25/2010
2
ZHOU, YING
Exec Dt:
02/25/2010
3
GUPTA, AMITABH
Exec Dt:
02/25/2010
4
HUNEK, BALAZS
Exec Dt:
02/25/2010
5
GRINTER, NIGEL
Exec Dt:
02/25/2010
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8178318
US20100184147
12702428
Correspondence name and address
PRAXAIR, INC. LAW DEPARTMENT - M1 557
39 OLD RIDGEBURY ROAD
DANBURY, CT 06810
Assignment: 18
Reel/Frame:029034/0923   Pages: 8
Recorded: 09/25/2012
Attorney Dkt #:083030-CIP1-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, ALAN T. Y.
Exec Dt:
09/20/2012
2
ZHOU, YING
Exec Dt:
09/20/2012
3
GUPTA, AMITABH
Exec Dt:
09/21/2012
4
HUNEK, BALAZS
Exec Dt:
09/20/2012
5
GRINTER, NIGEL
Exec Dt:
09/11/2012
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9181521
US20130189767
13559957
Correspondence name and address
PRAXAIR, INC. LAW DEPARTMENT
39 OLD RIDGEBURY ROAD
DANBURY, CT 06810
Assignment: 19
Reel/Frame:057608/0367   Pages: 7
Recorded: 09/27/2021
Attorney Dkt #:P21D007-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SEVER, ROBERT R.
Exec Dt:
09/22/2021
2
ZHOU, YING
Exec Dt:
09/22/2021
3
BURSAC, RANKO
Exec Dt:
09/24/2021
4
GUPTA, AMITABH
Exec Dt:
09/22/2021
Assignee
1
PRAXAIR TECHNOLOGY, INC.
10 RIVERVIEW DR.
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11519657
NONE
17485974
Correspondence name and address
LINDE INC. LAW DEPARTMENT
10 RIVERVIEW DRIVE
DANBURY, CT 06810-5113
Assignment: 20
Reel/Frame:057619/0293   Pages: 7
Recorded: 09/28/2021
Attorney Dkt #:P21D007-US-C1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SEVER, ROBERT R.
Exec Dt:
09/22/2021
2
ZHOU, YING
Exec Dt:
09/22/2021
3
BURSAC, RANKO
Exec Dt:
09/24/2021
4
GUPTA, AMITABH
Exec Dt:
09/22/2021
Assignee
1
PRAXAIR TECHNOLOGY, INC.
10 RIVERVIEW DR.
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230108589
17487044
Correspondence name and address
LINDE INC.
10 RIVERVIEW DR.
DANBURY, CT 06810

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