Search

Hoang C. Dang

Examiner (ID: 17143)

Most Active Art Unit
3506
Art Unit(s)
3625, 3506, 3672, 2731
Total Applications
3000
Issued Applications
2548
Pending Applications
156
Abandoned Applications
295

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 6223355 [patent_doc_number] => 20100181063 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-07-22 [patent_title] => 'MULTI-LOCK ADAPTERS FOR INDEPENDENT SCREWED WELLHEADS AND METHODS OF USING SAME' [patent_app_type] => utility [patent_app_number] => 12/751589 [patent_app_country] => US [patent_app_date] => 2010-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 6049 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0181/20100181063.pdf [firstpage_image] =>[orig_patent_app_number] => 12751589 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/751589
Multi-lock adapters for independent screwed wellheads and methods of using same Mar 30, 2010 Issued
Array ( [id] => 6549110 [patent_doc_number] => 20100288512 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-11-18 [patent_title] => 'ROLLING BRIDGE THROUGH TUBING BRIDGE PLUG' [patent_app_type] => utility [patent_app_number] => 12/724981 [patent_app_country] => US [patent_app_date] => 2010-03-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 4235 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0288/20100288512.pdf [firstpage_image] =>[orig_patent_app_number] => 12724981 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/724981
ROLLING BRIDGE THROUGH TUBING BRIDGE PLUG Mar 15, 2010 Abandoned
Array ( [id] => 4435351 [patent_doc_number] => 07926574 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-04-19 [patent_title] => 'Fluid actuated circulating sub' [patent_app_type] => utility [patent_app_number] => 12/716990 [patent_app_country] => US [patent_app_date] => 2010-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5900 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/926/07926574.pdf [firstpage_image] =>[orig_patent_app_number] => 12716990 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/716990
Fluid actuated circulating sub Mar 2, 2010 Issued
Array ( [id] => 8327036 [patent_doc_number] => 08235126 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-08-07 [patent_title] => 'Transportable well service platform' [patent_app_type] => utility [patent_app_number] => 12/707541 [patent_app_country] => US [patent_app_date] => 2010-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 3362 [patent_no_of_claims] => 76 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12707541 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/707541
Transportable well service platform Feb 16, 2010 Issued
Array ( [id] => 6151686 [patent_doc_number] => 20110155473 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-06-30 [patent_title] => 'STABILIZING SYSTEM AND METHODS FOR A DRILL BIT' [patent_app_type] => utility [patent_app_number] => 12/698693 [patent_app_country] => US [patent_app_date] => 2010-02-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6118 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0155/20110155473.pdf [firstpage_image] =>[orig_patent_app_number] => 12698693 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/698693
STABILIZING SYSTEM AND METHODS FOR A DRILL BIT Feb 1, 2010 Abandoned
Array ( [id] => 8292765 [patent_doc_number] => 08220545 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-07-17 [patent_title] => 'Heating and cooling electrical components in a downhole operation' [patent_app_type] => utility [patent_app_number] => 12/693983 [patent_app_country] => US [patent_app_date] => 2010-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 22 [patent_no_of_words] => 10478 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12693983 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/693983
Heating and cooling electrical components in a downhole operation Jan 25, 2010 Issued
Array ( [id] => 6419173 [patent_doc_number] => 20100101869 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-04-29 [patent_title] => 'DIAMOND BIT STEEL BODY CUTTER POCKET PROTECTION' [patent_app_type] => utility [patent_app_number] => 12/650162 [patent_app_country] => US [patent_app_date] => 2009-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4754 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0101/20100101869.pdf [firstpage_image] =>[orig_patent_app_number] => 12650162 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/650162
Diamond bit steel body cutter pocket protection Dec 29, 2009 Issued
Array ( [id] => 4477003 [patent_doc_number] => 07900703 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-03-08 [patent_title] => 'Method of drilling out a reaming tool' [patent_app_type] => utility [patent_app_number] => 12/624311 [patent_app_country] => US [patent_app_date] => 2009-11-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 2877 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/900/07900703.pdf [firstpage_image] =>[orig_patent_app_number] => 12624311 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/624311
Method of drilling out a reaming tool Nov 22, 2009 Issued
Array ( [id] => 8468202 [patent_doc_number] => 08297378 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-10-30 [patent_title] => 'Turbine driven hammer that oscillates at a constant frequency' [patent_app_type] => utility [patent_app_number] => 12/624207 [patent_app_country] => US [patent_app_date] => 2009-11-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 15 [patent_no_of_words] => 3772 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 199 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12624207 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/624207
Turbine driven hammer that oscillates at a constant frequency Nov 22, 2009 Issued
Array ( [id] => 7974345 [patent_doc_number] => 08069917 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-12-06 [patent_title] => 'Gripper assembly for downhole tools' [patent_app_type] => utility [patent_app_number] => 12/572916 [patent_app_country] => US [patent_app_date] => 2009-10-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 21 [patent_no_of_words] => 14637 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 249 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/069/08069917.pdf [firstpage_image] =>[orig_patent_app_number] => 12572916 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/572916
Gripper assembly for downhole tools Oct 1, 2009 Issued
Array ( [id] => 7974345 [patent_doc_number] => 08069917 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-12-06 [patent_title] => 'Gripper assembly for downhole tools' [patent_app_type] => utility [patent_app_number] => 12/572916 [patent_app_country] => US [patent_app_date] => 2009-10-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 21 [patent_no_of_words] => 14637 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 249 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/069/08069917.pdf [firstpage_image] =>[orig_patent_app_number] => 12572916 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/572916
Gripper assembly for downhole tools Oct 1, 2009 Issued
Array ( [id] => 6584491 [patent_doc_number] => 20100000799 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-01-07 [patent_title] => 'Indenting Member for a Drill Bit' [patent_app_type] => utility [patent_app_number] => 12/559731 [patent_app_country] => US [patent_app_date] => 2009-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 6038 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0000/20100000799.pdf [firstpage_image] =>[orig_patent_app_number] => 12559731 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/559731
Indenting Member for a Drill Bit Sep 14, 2009 Abandoned
Array ( [id] => 6019590 [patent_doc_number] => 20110048712 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-03-03 [patent_title] => 'METHOD AND APPARATUS FOR DROPPING A PUMP DOWN PLUG OR BALL' [patent_app_type] => utility [patent_app_number] => 12/548577 [patent_app_country] => US [patent_app_date] => 2009-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 30 [patent_figures_cnt] => 30 [patent_no_of_words] => 7148 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0048/20110048712.pdf [firstpage_image] =>[orig_patent_app_number] => 12548577 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/548577
Method and apparatus for dropping a pump down plug or ball Aug 26, 2009 Issued
Array ( [id] => 7554172 [patent_doc_number] => 08066067 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-11-29 [patent_title] => 'Apparatus and method for recovering fluids from a well and/or injecting fluids into a well' [patent_app_type] => utility [patent_app_number] => 12/541938 [patent_app_country] => US [patent_app_date] => 2009-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 47 [patent_figures_cnt] => 51 [patent_no_of_words] => 21267 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/066/08066067.pdf [firstpage_image] =>[orig_patent_app_number] => 12541938 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/541938
Apparatus and method for recovering fluids from a well and/or injecting fluids into a well Aug 14, 2009 Issued
Array ( [id] => 4607380 [patent_doc_number] => 07992633 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-08-09 [patent_title] => 'Apparatus and method for recovering fluids from a well and/or injecting fluids into a well' [patent_app_type] => utility [patent_app_number] => 12/541936 [patent_app_country] => US [patent_app_date] => 2009-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 47 [patent_figures_cnt] => 51 [patent_no_of_words] => 21305 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 10 [patent_words_short_claim] => 42 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/992/07992633.pdf [firstpage_image] =>[orig_patent_app_number] => 12541936 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/541936
Apparatus and method for recovering fluids from a well and/or injecting fluids into a well Aug 14, 2009 Issued
Array ( [id] => 8384439 [patent_doc_number] => 08261828 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-09-11 [patent_title] => 'Optimized machining process for cutting tubulars downhole' [patent_app_type] => utility [patent_app_number] => 12/541035 [patent_app_country] => US [patent_app_date] => 2009-08-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 23 [patent_no_of_words] => 6583 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12541035 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/541035
Optimized machining process for cutting tubulars downhole Aug 12, 2009 Issued
Array ( [id] => 8150564 [patent_doc_number] => 08167038 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-05-01 [patent_title] => 'System and method for deflection compensation in power drive system for connection of tubulars' [patent_app_type] => utility [patent_app_number] => 12/534499 [patent_app_country] => US [patent_app_date] => 2009-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 17 [patent_no_of_words] => 11492 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/167/08167038.pdf [firstpage_image] =>[orig_patent_app_number] => 12534499 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/534499
System and method for deflection compensation in power drive system for connection of tubulars Aug 2, 2009 Issued
Array ( [id] => 6494995 [patent_doc_number] => 20100012313 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-01-21 [patent_title] => 'DOWNHOLE PIEZOELECTRIC DEVICES' [patent_app_type] => utility [patent_app_number] => 12/505340 [patent_app_country] => US [patent_app_date] => 2009-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3211 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0012/20100012313.pdf [firstpage_image] =>[orig_patent_app_number] => 12505340 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/505340
Downhole piezoelectric devices Jul 16, 2009 Issued
Array ( [id] => 5482762 [patent_doc_number] => 20090272527 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-11-05 [patent_title] => 'Method and Apparatus for Perforating a Casing and Producing Hydrocarbons' [patent_app_type] => utility [patent_app_number] => 12/503724 [patent_app_country] => US [patent_app_date] => 2009-07-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 24 [patent_no_of_words] => 8671 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0272/20090272527.pdf [firstpage_image] =>[orig_patent_app_number] => 12503724 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/503724
Method and apparatus for perforating a casing and producing hydrocarbons Jul 14, 2009 Issued
Array ( [id] => 8197398 [patent_doc_number] => 08186454 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-05-29 [patent_title] => 'Apparatus and method for electrocrushing rock' [patent_app_type] => utility [patent_app_number] => 12/502977 [patent_app_country] => US [patent_app_date] => 2009-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 51 [patent_figures_cnt] => 58 [patent_no_of_words] => 22808 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 48 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/186/08186454.pdf [firstpage_image] =>[orig_patent_app_number] => 12502977 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/502977
Apparatus and method for electrocrushing rock Jul 13, 2009 Issued
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