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Patent Assignment Assignor Details
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Assignor Name : WALKER, DAVID A.
Total Assignments: 12
Assignment: 1
Reel/Frame:004734/0914   Pages: 1
Recorded: 07/02/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
Exec Dt:
02/28/1986
2
Exec Dt:
02/28/1986
3
Exec Dt:
02/28/1986
4
Exec Dt:
02/28/1986
Assignee
1
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
06836709
Correspondence name and address
DAVID D. KAUFMAN
1800 PRUDENTIAL PLAZA
CHICAGO, IL 60601
Assignment: 2
Reel/Frame:006963/0250   Pages: 2
Recorded: 04/11/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
04/08/1994
Assignee
1
A DELAWARE CORPORATION
BARTLESVILLE, OKLAHOMA 74004
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
08226164
Correspondence name and address
GEORGE E. BOGATIE
RICHMOND, PHILLIPS, HITCHCOCK & FISH
P.O. BOX 2443
BARTLESVILLE, OK 74005
Assignment: 3
Reel/Frame:010007/0232   Pages: 13
Recorded: 06/09/1999
Conveyance: BROKERAGE AGREEMENT
Assignors
1
Exec Dt:
08/18/1995
2
Exec Dt:
08/18/1995
3
Exec Dt:
08/18/1995
Assignee
1
525 UNIVERSITY AVENUE, SUITE 925
TORONTO, ONTARIO, CANADA M5G 2
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
08757475
Correspondence name and address
RICHES, MCKENZIE & HERBERT
GARY M. TRAVIS
2 BLOOR STREET EAST
SUITE 2900
TORONTO, ONTARIO, M4W 3J5
Assignment: 4
Reel/Frame:012649/0650   Pages: 5
Recorded: 03/05/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
09/19/2001
2
Exec Dt:
10/28/2001
3
Exec Dt:
09/19/2001
Assignee
1
39 OLD RIDGEBURY ROAD
DANBURY, CONNECTICUT 06810
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
09985733
Correspondence name and address
PRAXAIR, INC
MISS JOANN M. JELSA
39 OLD RIDGEBURY ROAD
DANBURY, CT 06810-5113
Assignment: 5
Reel/Frame:013870/0485   Pages: 4
Recorded: 03/11/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
02/14/2003
2
Exec Dt:
02/13/2003
3
Exec Dt:
02/13/2003
4
Exec Dt:
02/14/2003
5
Exec Dt:
02/13/2003
Assignee
1
12500 EAST BELFORD AVENUE
M21 A2
ENGLEWOOD, COLORADO 80112-5939
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
10387012
Correspondence name and address
KNOBBE, MARTENS, OLSON & BEAR, LLP
NIRA M. BRAND
2040 MAIN ST.
IRVINE, CA 92614
Assignment: 6
Reel/Frame:013870/0792   Pages: 4
Recorded: 03/11/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
02/14/2003
2
Exec Dt:
02/13/2003
3
Exec Dt:
02/13/2003
4
Exec Dt:
02/14/2003
5
Exec Dt:
02/13/2003
Assignee
1
12500 EAST BELFORD AVENUE
SUITE M21A2
ENGLEWOOD, COLORADO 80112-5939
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
10387042
Correspondence name and address
KNOBBE, MARTENS, OLSON & BEAR, LLP
NIRA M. BRAND
2040 MAIN STREET, FOURTEENTH FLOOR
IRVINE, CA 92614
Assignment: 7
Reel/Frame:013872/0693   Pages: 4
Recorded: 03/11/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
02/14/2003
2
Exec Dt:
02/13/2003
3
Exec Dt:
02/13/2003
4
Exec Dt:
02/14/2003
5
Exec Dt:
02/13/2003
Assignee
1
12500 EAST BELFORD AVENUE
M21A2
ENGLEWOOD, COLORADO 80112-5939
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
10387044
Correspondence name and address
KNOBBE MARTENS OLSON & BEAR LLP
NIRA M. BRAND
FOURTEENTH FLOOR, 2040 MAIN STREET
IRVINE, CA 92614
Assignment: 8
Reel/Frame:013873/0021   Pages: 7
Recorded: 03/11/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
02/14/2003
2
Exec Dt:
02/13/2003
3
Exec Dt:
02/13/2003
4
Exec Dt:
02/14/2003
5
Exec Dt:
02/13/2003
Assignee
1
12500 EAST BELFORD AVENUE
M21A2
ENGLEWOOD, COLORADO 80112-5939
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
10387045
Correspondence name and address
KNOBBE MARTENS OLSON & BEAR LLP
NIRA M. BRAND
FOURTEENTH FLOOR, 2040 MAIN STREET
IRVINE, CA 92614
Assignment: 9
Reel/Frame:034066/0828   Pages: 15
Recorded: 10/30/2014
Attorney Dkt #:013797.10944 JMF/LLS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
10/01/2014
2
Exec Dt:
10/02/2014
3
Exec Dt:
10/07/2014
4
Exec Dt:
10/02/2014
5
Exec Dt:
10/08/2014
6
Exec Dt:
10/01/2014
7
Exec Dt:
10/08/2014
8
Exec Dt:
10/05/2014
9
Exec Dt:
10/20/2014
10
Exec Dt:
10/19/2014
11
Exec Dt:
10/01/2014
12
Exec Dt:
10/09/2014
13
Exec Dt:
10/09/2014
14
Exec Dt:
10/27/2014
Assignee
1
ONE MICROSOFT WAY
REDMOND, WASHINGTON 98052
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
29495942
Correspondence name and address
BANNER & WITCOFF, LTD.
1100 13TH STREET, N.W.
SUITE 1200
WASHINGTON, DC 20005-4051
Assignment: 10
Reel/Frame:061061/0636   Pages: 7
Recorded: 09/12/2022
Attorney Dkt #:30938/2016-081C1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/09/2016
2
Exec Dt:
06/09/2016
3
Exec Dt:
06/09/2016
Assignee
1
633 CLARK STREET
EVANSTON, ILLINOIS 60208
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
17903260
Correspondence name and address
MARSHALL, GERSTEIN & BORUN LLP
233 S. WACKER DRIVE
6300 WILLIS TOWER
CHICAGO, IL 60606
Assignment: 11
Reel/Frame:050250/0900   Pages: 7
Recorded: 09/03/2019
Attorney Dkt #:30938/2016-177
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
12/09/2016
2
Exec Dt:
12/09/2016
3
Exec Dt:
12/09/2016
Assignee
1
633 CLARK STREET
EVANSTON, ILLINOIS 60208
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
16465605
Correspondence name and address
MARSHALL, GERSTEIN & BORUN LLP
233 SOUTH WACKER DRIVE
SUITE 6300
CHICAGO, IL 60606
Assignment: 12
Reel/Frame:047688/0470   Pages: 7
Recorded: 12/06/2018
Attorney Dkt #:30938/2016-081
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
11/21/2018
2
Exec Dt:
12/03/2018
3
Exec Dt:
11/28/2018
Assignee
1
633 CLARK STREET
EVANSTON, ILLINOIS 60208
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
16098040
Correspondence name and address
MARSHALL, GERSTEIN & BORUN LLP
233 SOUTH WACKER DRIVE
SUITE 6300
CHICAGO, IL 60606-6357

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