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:
11/10/2020
Application #:
16404371
Filing Dt:
05/06/2019
Publication #:
Pub Dt:
08/22/2019
Inventors:
Chun Zhou, Fuchen Liu, Zhenzhou Yang
Title:
HIGH DENSITY AND HIGH TEMPERATURE EMULSIFIER FOR USE IN AN OIL BASED DRILLING FLUID SYSTEM
Assignment: 1
Reel/Frame:
049093/0736Recorded: 05/06/2019Pages: 6
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
10/14/2015
Exec Dt:
10/14/2015
Exec Dt:
10/14/2015
Assignee:
2901 WILCREST DRIVE
HOUSTON, TEXAS 77042
Correspondent:
RAMEY & SCHWALLER, LLP
5020 MONTROSE BLVD.
SUITE 750
HOUSTON, TX 77006

Search Results as of: 06/21/2024 03:48 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