Patent Application
Provisional
App. No. 62/811,986
· Confirmation No. 1758
Sonic Processing of Dispersive Waves in Acoustic Logging
Inventor:
Yibing Zheng
Applicant:
Weatherford Technology Holdings, LLC
Provisional Application Expired
|
⬇ PDF
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2019-03-12 | APP.FILE.REC |
Filing Receipt | 3 | View | |
| 2019-02-28 | ADS |
Application Data Sheet | 8 | View | |
| 2019-02-28 | SPEC |
Specification | 8 | View | |
| 2019-02-28 | DRW |
Drawings-only black and white line drawings | 7 | View | |
| 2019-02-28 | WFEE |
Fee Worksheet (SB06) | 2 | View | |
| 2019-02-28 | N417 |
Electronic Filing System Acknowledgment Receipt | 3 | View |
Inventors
Yibing Zheng
Houston, TX
Attorneys & Agents of Record
Prosecution
- Customer No.
- 136004
- Docket No.
- 114-0015PUS
- Confirmation No.
- 1758
PATENT SECURITY INTEREST ASSIGNMENT AGREEMENT
Recorded 2023-04-26
WEATHERFORD TECHNOLOGY HOLDINGS, LLC,
WEATHERFORD NETHERLANDS B.V.,
WEATHERFORD NORGE AS,
HIGH PRESSURE INTEGRITY, INC.,
PRECISION ENERGY SERVICES, INC.,
WEATHERFORD CANADA LTD.,
WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH,
PRECISION ENERGY SERVICES ULC,
WEATHERFORD U.K. LIMITED
RELEASE OF SECURITY INTEREST
Recorded 2020-08-28
from
HIGH PRESSURE INTEGRITY, INC.,
PRECISION ENERGY SERVICES ULC,
PRECISION ENERGY SERVICES, INC.,
WEATHERFORD CANADA LTD.,
WEATHERFORD NETHERLANDS B.V.,
WEATHERFORD NORGE AS,
WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH,
WEATHERFORD TECHNOLOGY HOLDINGS, LLC,
WEATHERFORD U.K. LIMITED
SECURITY INTEREST
Recorded 2019-12-26
from
HIGH PRESSURE INTEGRITY INC.,
PRECISION ENERGY SERVICES INC.,
PRECISION ENERGY SERVICES ULC,
WEATHERFORD CANADA LTD.,
WEATHERFORD NETHERLANDS B.V.,
WEATHERFORD NORGE AS,
WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH,
WEATHERFORD TECHNOLOGY HOLDINGS LLC,
WEATHERFORD U.K. LIMITED
SECURITY INTEREST
Recorded 2019-12-18
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Quick Facts
- App. No.
- 62/811,986
- Filed
- 2019-02-28
External Links