Granted Patent
Utility
US 6,502,637
· Confirmation No. 2436
TREATING SHALE AND CLAY IN HYDROCARBON PRODUCING FORMATIONS
Inventor:
Kevin W. Smith
|
⬇ PDF
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2017-08-11 | OATH |
Oath or Declaration filed | 14 | View | |
| 2008-12-02 | LET. |
Miscellaneous Incoming Letter | 1 | View | |
| 2008-12-02 | R3.73 |
Assignee showing of ownership per 37 CFR 3.73 | 1 | View | |
| 2001-03-20 | TRNA |
Transmittal of New Application | 1 | View | |
| 2001-03-20 | SPEC |
Specification | 8 | View | |
| 2001-03-20 | CLM |
Claims | 2 | View | |
| 2001-03-20 | ABST |
Abstract | 1 | View | |
| 2001-03-20 | OATH |
Oath or Declaration filed | 1 | View | |
| 2001-03-20 | TRNA |
Transmittal of New Application | 1 | View | |
| 2001-03-20 | SPEC |
Specification | 8 | View | |
| 2001-03-20 | CLM |
Claims | 2 | View | |
| 2001-03-20 | ABST |
Abstract | 1 | View | |
| 2001-03-20 | OATH |
Oath or Declaration filed | 1 | View |
Inventors
Kevin W. Smith
McMurray, PA
Attorneys & Agents of Record
Classification
USPC
166/294
Prosecution
- Examiner
- SUCHFIELD, GEORGE A
- Art Unit
- 3672
- Confirmation No.
- 2436
Publication
- Pub. No.
- US20020008225A1
- Pub. Date
- 2002-01-24
Patent Term Adjustment
0days
Parent
Claims priority from a provisional application
→
App. 60/192,304
Filed 2000-03-27
· Provisional Application Expired
Child
is a Division of
→
App. 10/223,259
· US 6,921,742
Filed 2002-08-19
· Patented Case
Child
is a Division of
→
App. 11/186,184
· US 7,576,038
Filed 2005-07-21
· Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
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 2017-08-11
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2015-10-09
from
CLEARWATER, INC.
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2002-11-06
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Quick Facts
- Patent No.
- US 6,502,637
- App. No.
- 09/812,422
- Filed
- 2001-03-20
- Granted
- 2003-01-07
- Pub. No.
- US20020008225A1
- Examiner
- SUCHFIELD, GEORGE A
- Art Unit
- 3672
- PTA
- 0 days
External Links