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: 1
Patent #:
Issue Dt:
02/24/2015
Application #:
13521522
Filing Dt:
01/04/2013
Publication #:
Pub Dt:
04/25/2013
Inventors:
Guoan Zhang, Jianlong Cheng, Xianhong Sun
Title:
COMBINED FRACTURING AND PERFORATING METHOD AND DEVICE FOR OIL AND GAS WELL
Assignment: 1
Reel/Frame:
034192/0444Recorded: 11/18/2014Pages: 5
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
09/26/2012
Exec Dt:
09/26/2012
Exec Dt:
09/26/2012
Assignee:
NO. 70 KEJI ROAD, HIGH-TECH DEVELOPMENT ZONE
SUITE D301, TANGYUE BUILDING
XI'AN, SHAANXI, CHINA 710075
Correspondent:
LAW OFFICES OF ALBERT WAI-KIT CHAN, PLLC
141-07 20TH AVENUE
SUITE 604 WORLD PLAZA
WHITESTONE, NY 11357

Search Results as of: 06/14/2024 04:42 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