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 Abstract of Title
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Total Assignments: 3
Patent #:
Issue Dt:
08/07/2012
Application #:
12597370
Filing Dt:
06/23/2010
Publication #:
Pub Dt:
10/21/2010
Inventor:
Kewei Zhang
Title:
CONTROL OF PARTICULATE ENTRAINMENT BY FLUIDS
Assignment: 1
Reel/Frame:
025543/0636Recorded: 12/21/2010Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
11/26/2010
Assignee:
645-7TH AVENUE SW
SUITE 2900
CALGARY, CANADA T2P 4G8
Correspondent:
NICHOLAS J. LANDAU
1819 5TH AVENUE NORTH
BRADLEY ARANT BOULT CUMMINGS, LLP
BRIMINGHAM, AL 35203-2119
Assignment: 2
Reel/Frame:
037482/0702Recorded: 01/13/2016Pages: 20
Conveyance:
SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
11/15/2015
Assignee:
600, 530 - 8TH AVENUE S.W.
CALGARY, ALBERTA, CANADA T2P 3S8
Correspondent:
ANNIE AYMOND-NORTON ROSE FULBRIGHT USLLP
1301 MCKINNEY STREET
HOUSTON, TX 77010
Assignment: 3
Reel/Frame:
060087/0101Recorded: 06/02/2022Pages: 13
Conveyance:
SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
12/03/2021
Assignee:
520 - 3RD AVENUE SW
SUITE 4000
CALGARY, CANADA T2P 0R3
Correspondent:
NORTON ROSE FULBRIGHT CANADA LLP
2500-1 PLACE VILLE-MARIE
MONTRÉAL, PQC H3B 1R1

Search Results as of: 05/23/2024 01:53 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