
Hoang C Dang
Examiner (ID: 12125)
| Most Active Art Unit | 3506 |
| Art Unit(s) | 3672, 3506, 3625, 2731 |
| Total Applications | 3000 |
| Issued Applications | 2548 |
| Pending Applications | 156 |
| Abandoned Applications | 295 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 4524879
[patent_doc_number] => RE042030
[patent_country] => US
[patent_kind] => E1
[patent_issue_date] => 2011-01-18
[patent_title] => 'Critical velocity reduction in a gas well'
[patent_app_type] => reissue
[patent_app_number] => 12/492526
[patent_app_country] => US
[patent_app_date] => 2009-06-26
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[pdf_file] => patents/RE/042/RE042030.pdf
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[rel_patent_id] =>[rel_patent_doc_number] =>) 12/492526 | Critical velocity reduction in a gas well | Jun 25, 2009 | Issued |
Array
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[id] => 6488090
[patent_doc_number] => 20100200236
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2010-08-12
[patent_title] => 'Method of Circulating While Retrieving Bottom Hole Assembly in Casing'
[patent_app_type] => utility
[patent_app_number] => 12/491966
[patent_app_country] => US
[patent_app_date] => 2009-06-25
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[rel_patent_id] =>[rel_patent_doc_number] =>) 12/491966 | Method of circulating while retrieving bottom hole assembly in casing | Jun 24, 2009 | Issued |
Array
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[id] => 5455581
[patent_doc_number] => 20090255733
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[patent_kind] => A1
[patent_issue_date] => 2009-10-15
[patent_title] => 'Lead the Bit Rotary Steerable System'
[patent_app_type] => utility
[patent_app_number] => 12/491149
[patent_app_country] => US
[patent_app_date] => 2009-06-24
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[rel_patent_id] =>[rel_patent_doc_number] =>) 12/491149 | Lead the bit rotary steerable system | Jun 23, 2009 | Issued |
Array
(
[id] => 5487753
[patent_doc_number] => 20090288824
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[patent_kind] => A1
[patent_issue_date] => 2009-11-26
[patent_title] => 'MULTI-ZONE FORMATION FLUID EVALUATION SYSTEM AND METHOD FOR USE OF SAME'
[patent_app_type] => utility
[patent_app_number] => 12/488539
[patent_app_country] => US
[patent_app_date] => 2009-06-20
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[rel_patent_id] =>[rel_patent_doc_number] =>) 12/488539 | MULTI-ZONE FORMATION FLUID EVALUATION SYSTEM AND METHOD FOR USE OF SAME | Jun 19, 2009 | Abandoned |
Array
(
[id] => 8434116
[patent_doc_number] => 08281882
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2012-10-09
[patent_title] => 'Jack element for a drill bit'
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Array
(
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[patent_doc_number] => 07784550
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[patent_issue_date] => 2010-08-31
[patent_title] => 'Downhole apparatus with a swellable connector'
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[rel_patent_id] =>[rel_patent_doc_number] =>) 12/470401 | Downhole apparatus with a swellable connector | May 20, 2009 | Issued |
Array
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[patent_doc_number] => 07650951
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[patent_title] => 'Resettable actuator for downhole tool'
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[rel_patent_id] =>[rel_patent_doc_number] =>) 12/424901 | Resettable actuator for downhole tool | Apr 15, 2009 | Issued |
Array
(
[id] => 159769
[patent_doc_number] => 07669663
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[patent_issue_date] => 2010-03-02
[patent_title] => 'Resettable actuator for downhole tool'
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Array
(
[id] => 5352575
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[patent_issue_date] => 2009-07-23
[patent_title] => 'Downhole Percussive Tool with Alternating Pressure Differentials'
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Array
(
[id] => 168364
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[patent_issue_date] => 2010-02-16
[patent_title] => 'Downhole percussive tool with alternating pressure differentials'
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Array
(
[id] => 4429329
[patent_doc_number] => 07896091
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[patent_kind] => B2
[patent_issue_date] => 2011-03-01
[patent_title] => 'Convertible seal'
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[firstpage_image] =>[orig_patent_app_number] => 12412650
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/412650 | Convertible seal | Mar 26, 2009 | Issued |
Array
(
[id] => 4453204
[patent_doc_number] => 07891417
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[patent_issue_date] => 2011-02-22
[patent_title] => 'Completion apparatus for measuring streaming potentials and determining earth formation characteristics'
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[rel_patent_id] =>[rel_patent_doc_number] =>) 12/400241 | Completion apparatus for measuring streaming potentials and determining earth formation characteristics | Mar 8, 2009 | Issued |
Array
(
[id] => 4627893
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[patent_title] => 'Expandable casing with enhanced collapse resistance and sealing capability'
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[rel_patent_id] =>[rel_patent_doc_number] =>) 12/371741 | Expandable casing with enhanced collapse resistance and sealing capability | Feb 15, 2009 | Issued |
Array
(
[id] => 4453208
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[patent_title] => 'Downhole well cleaning tool'
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Array
(
[id] => 6450445
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[patent_issue_date] => 2010-04-15
[patent_title] => 'METHOD AND APPARATUS FOR DROPPING A PUMP DOWN PLUG OR BALL'
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Array
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Array
(
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Array
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Array
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[rel_patent_id] =>[rel_patent_doc_number] =>) 12/323152 | Distortion compensation for rod piston bore in subsurface safety valves | Nov 24, 2008 | Issued |
Array
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[rel_patent_id] =>[rel_patent_doc_number] =>) 12/277664 | Downhole sampling tool and method for using same | Nov 24, 2008 | Issued |