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 : DAVIDOFF, ALLEN
Total Assignments: 6
Assignment: 1
Reel/Frame:019251/0239   Pages: 7
Recorded: 05/04/2007
Attorney Dkt #:17162-013001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
04/20/2007
2
Exec Dt:
04/14/2007
3
Exec Dt:
04/11/2007
4
Exec Dt:
04/21/2007
Assignee
1
1520 4TH STREET S.W., SUITE 1000
.
CALGARY, CANADA T2R 1H5
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11687302
Correspondence name and address
MICHAEL R. ASAM
FISH & RICHARDSON P.C.
P.O.BOX 1022
MINNEAPOLIS, MN 55440-1022
Assignment: 2
Reel/Frame:060209/0899   Pages: 4
Recorded: 06/15/2022
Attorney Dkt #:12203-002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
05/07/2021
Assignee
1
4000, 421 7TH AVENUE SW
CALGARY, ALBERTA, CANADA T2P 4K9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
14776905
Correspondence name and address
WOLTER VAN DYKE DAVIS, PLLC
1900 SUMMIT TOWER BLVD, SUITE 140
ORLANDO, FL 32810
Assignment: 3
Reel/Frame:062009/0200   Pages: 4
Recorded: 12/07/2022
Attorney Dkt #:12203-002US2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
05/07/2021
Assignee
1
4000, 421 7TH AVENUE SW
CALGARY, ALBERTA, CANADA T2P 4K9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
17818159
Correspondence name and address
WOLTER VAN DYKE DAVIS, PLLC
1900 SUMMIT TOWER BLVD, SUITE 140
ORLANDO, FL 32810
Assignment: 4
Reel/Frame:062085/0939   Pages: 3
Recorded: 12/14/2022
Attorney Dkt #:12203-004US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
12/13/2022
Assignee
1
4000, 421 7TH AVENUE SW
CALGARY AB, CANADA T2P 4K9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
17911789
Correspondence name and address
WOLTER VAN DYKE DAVIS, PLLC
1900 SUMMIT TOWER BLVD, SUITE 140
ORLANDO, FL 32810
Assignment: 5
Reel/Frame:066827/0535   Pages: 4
Recorded: 03/19/2024
Attorney Dkt #:12203-006US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
03/19/2024
Assignee
1
400, 421 7TH AVENUE SW
CALGARY, CANADA T2P 4K9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
18280319
Correspondence name and address
WOLTER, VAN DYKE, DAVIS, PLLC
1900 SUMMIT TOWER BLVD, SUITE 140
ORLANDO, FL 32810
Assignment: 6
Reel/Frame:070305/0023   Pages: 8
Recorded: 02/24/2025
Attorney Dkt #:12203-009US2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
01/16/2025
Assignee
1
400, 421 7TH AVENUE SW
CALGARY, CANADA T2P 4K9
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
18722330
Correspondence name and address
WOLTER, VAN DYKE, DAVIS, PLLC
1900 SUMMIT TOWER BLVD., SUITE 140
ORLANDO, FL 32810

Search Results as of: 08/09/2025 11:25 AM
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