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Patent Assignment Assignor Details
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Assignor Name : CHENG, ALAN T.Y.
Total Assignments: 5
Assignment: 1
Reel/Frame:006319/0697   Pages: 5
Recorded: 11/16/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
CHENG, ALAN T.Y.
Exec Dt:
10/23/1992
2
CALVO, JOSE RAMON
Exec Dt:
10/23/1992
3
BARRADO, RAMON RODRIGUEZ
Exec Dt:
11/05/1992
Assignee
1
PRAXAIR TECHNOLOGY, INC.
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810-5113
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5315020
NONE
07921146
Correspondence name and address
MISS JOANN M. JELSA
PRAXAIR, INC.
LAW DEPARTMENT - M1 557
39 OLD RIDGEBURY ROAD
DANBURY, CT 06810-5113
Assignment: 2
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: 3
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: 4
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: 5
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

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