Patent Application
Provisional
App. No. 62/894,236
· Confirmation No. 6975
SYSTEM AND METHOD FOR ELECTRIC FLOW CONTROL
Applicant:
WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Provisional Application Expired
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⬇ PDF
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2019-09-27 | APP.FILE.REC |
Filing Receipt | 3 | View | |
| 2019-08-30 | DRW |
Drawings-only black and white line drawings | 30 | View | |
| 2019-08-30 | ADS |
Application Data Sheet | 8 | View | |
| 2019-08-30 | TR.PROV |
Provisional Cover Sheet (SB16) | 3 | View | |
| 2019-08-30 | WFEE |
Fee Worksheet (SB06) | 2 | View | |
| 2019-08-30 | N417 |
Electronic Filing System Acknowledgment Receipt | 3 | View | |
| 2019-08-30 | SPEC |
Specification | 21 | View | |
| 2019-08-30 | CLM |
Claims | 7 | View | |
| 2019-08-30 | APPENDIX |
Appendix to the specification | 8 | View |
Inventors
Don A. HOPMANN
Alvin, TX
Sebastiaan J. WOLTERS
Kingwood, TX
Attorneys & Agents of Record
Prosecution
- Customer No.
- 150256
- Docket No.
- WFT-6599-PROV-US
- Confirmation No.
- 6975
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Claims priority from a provisional application
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App. 16/996,492
· US 11,371,318
Filed 2020-08-18
· Patented Case
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Claims priority from a provisional application
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App. 19/349,214
Filed 2025-10-03
· Docketed New Case - Ready for Examination
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PCT
Claims priority from a provisional application
→
PCT/US2020/046790
Filed 2020-08-18
· RO PROCESSING COMPLETED-PLACED IN STORAGE
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Claims priority from a provisional application
→
App. 17/741,839
· US 12,509,961
Filed 2022-05-11
· Patented Case
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 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
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2019-10-01
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Quick Facts
- App. No.
- 62/894,236
- Filed
- 2019-08-30
External Links