Search

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 numberTitle of the applicationFiling DateStatus
Array ( [id] => 7726784 [patent_doc_number] => 08100185 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-01-24 [patent_title] => 'Multi-lock adapters for independent screwed wellheads and methods of using same' [patent_app_type] => utility [patent_app_number] => 13/171169 [patent_app_country] => US [patent_app_date] => 2011-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 6140 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/100/08100185.pdf [firstpage_image] =>[orig_patent_app_number] => 13171169 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/171169
Multi-lock adapters for independent screwed wellheads and methods of using same Jun 27, 2011 Issued
Array ( [id] => 7700107 [patent_doc_number] => 20110226483 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-09-22 [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] => 13/116889 [patent_app_country] => US [patent_app_date] => 2011-05-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 48 [patent_figures_cnt] => 48 [patent_no_of_words] => 20889 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 14 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0226/20110226483.pdf [firstpage_image] =>[orig_patent_app_number] => 13116889 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/116889
Apparatus and method for recovering fluids from a well and/or injecting fluids into a well May 25, 2011 Issued
Array ( [id] => 6159819 [patent_doc_number] => 20110192589 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-08-11 [patent_title] => 'OPTIMIZED MACHINING PROCESS FOR CUTTING TUBULARS DOWNHOLE' [patent_app_type] => utility [patent_app_number] => 13/091485 [patent_app_country] => US [patent_app_date] => 2011-04-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3531 [patent_no_of_claims] => 15 [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/A1/0192/20110192589.pdf [firstpage_image] =>[orig_patent_app_number] => 13091485 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/091485
Cutting tool for cutting a downhole tubular Apr 20, 2011 Issued
Array ( [id] => 8316161 [patent_doc_number] => 08230933 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-07-31 [patent_title] => 'Top drive casing system' [patent_app_type] => utility [patent_app_number] => 13/078743 [patent_app_country] => US [patent_app_date] => 2011-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 19 [patent_no_of_words] => 8057 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13078743 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/078743
Top drive casing system Mar 31, 2011 Issued
Array ( [id] => 5954732 [patent_doc_number] => 20110180324 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-07-28 [patent_title] => 'Sensor on a Formation Engaging Member of a Drill Bit' [patent_app_type] => utility [patent_app_number] => 13/077964 [patent_app_country] => US [patent_app_date] => 2011-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 18 [patent_no_of_words] => 4781 [patent_no_of_claims] => 20 [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/A1/0180/20110180324.pdf [firstpage_image] =>[orig_patent_app_number] => 13077964 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/077964
Sensor on a formation engaging member of a drill bit Mar 30, 2011 Issued
Array ( [id] => 7770393 [patent_doc_number] => 08118090 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-02-21 [patent_title] => 'Hybrid wellhead system and method of use' [patent_app_type] => utility [patent_app_number] => 13/046044 [patent_app_country] => US [patent_app_date] => 2011-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 7382 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 42 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/118/08118090.pdf [firstpage_image] =>[orig_patent_app_number] => 13046044 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/046044
Hybrid wellhead system and method of use Mar 10, 2011 Issued
Array ( [id] => 6097610 [patent_doc_number] => 20110162834 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-07-07 [patent_title] => 'SURFACE INSTRUMENTATION CONFIGURATION FOR DRILLING RIG OPERATION' [patent_app_type] => utility [patent_app_number] => 13/026450 [patent_app_country] => US [patent_app_date] => 2011-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4378 [patent_no_of_claims] => 12 [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/A1/0162/20110162834.pdf [firstpage_image] =>[orig_patent_app_number] => 13026450 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/026450
Surface instrumentation configuration for drilling rig operation Feb 13, 2011 Issued
Array ( [id] => 8025097 [patent_doc_number] => 08141626 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-03-27 [patent_title] => 'Packer-anchoring device' [patent_app_type] => utility [patent_app_number] => 12/978113 [patent_app_country] => US [patent_app_date] => 2010-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 961 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/141/08141626.pdf [firstpage_image] =>[orig_patent_app_number] => 12978113 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/978113
Packer-anchoring device Dec 22, 2010 Issued
Array ( [id] => 5962111 [patent_doc_number] => 20110147000 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-06-23 [patent_title] => 'Downhole Safety Valve Apparatus and Method' [patent_app_type] => utility [patent_app_number] => 12/976850 [patent_app_country] => US [patent_app_date] => 2010-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3540 [patent_no_of_claims] => 21 [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/A1/0147/20110147000.pdf [firstpage_image] =>[orig_patent_app_number] => 12976850 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/976850
Downhole safety valve apparatus and method Dec 21, 2010 Issued
Array ( [id] => 8281298 [patent_doc_number] => 08215396 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-07-10 [patent_title] => 'Method and apparatus for dropping a pump down plug or ball' [patent_app_type] => utility [patent_app_number] => 12/956331 [patent_app_country] => US [patent_app_date] => 2010-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 28 [patent_no_of_words] => 4818 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 247 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12956331 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/956331
Method and apparatus for dropping a pump down plug or ball Nov 29, 2010 Issued
Array ( [id] => 4603783 [patent_doc_number] => 07984761 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-07-26 [patent_title] => 'Openhole perforating' [patent_app_type] => utility [patent_app_number] => 12/938093 [patent_app_country] => US [patent_app_date] => 2010-11-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 20 [patent_no_of_words] => 7118 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/984/07984761.pdf [firstpage_image] =>[orig_patent_app_number] => 12938093 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/938093
Openhole perforating Nov 1, 2010 Issued
Array ( [id] => 6128992 [patent_doc_number] => 20110005775 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-01-13 [patent_title] => 'APPARATUS AND METHODS TO PROTECT CONNECTIONS' [patent_app_type] => utility [patent_app_number] => 12/886307 [patent_app_country] => US [patent_app_date] => 2010-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4273 [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/A1/0005/20110005775.pdf [firstpage_image] =>[orig_patent_app_number] => 12886307 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/886307
Apparatus and methods to protect connections Sep 19, 2010 Issued
Array ( [id] => 7533209 [patent_doc_number] => RE042877 [patent_country] => US [patent_kind] => E1 [patent_issue_date] => 2011-11-01 [patent_title] => 'Methods and apparatus for wellbore construction and completion' [patent_app_type] => reissue [patent_app_number] => 12/833679 [patent_app_country] => US [patent_app_date] => 2010-07-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 74 [patent_figures_cnt] => 79 [patent_no_of_words] => 41118 [patent_no_of_claims] => 48 [patent_no_of_ind_claims] => 11 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/RE/042/RE042877.pdf [firstpage_image] =>[orig_patent_app_number] => 12833679 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/833679
Methods and apparatus for wellbore construction and completion Jul 8, 2010 Issued
Array ( [id] => 4435342 [patent_doc_number] => 07926569 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2011-04-19 [patent_title] => 'Bypass device for wellbores' [patent_app_type] => utility [patent_app_number] => 12/821601 [patent_app_country] => US [patent_app_date] => 2010-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2876 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/926/07926569.pdf [firstpage_image] =>[orig_patent_app_number] => 12821601 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/821601
Bypass device for wellbores Jun 22, 2010 Issued
Array ( [id] => 6372329 [patent_doc_number] => 20100300701 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-12-02 [patent_title] => 'ARTIFICIAL LIFT SYSTEM' [patent_app_type] => utility [patent_app_number] => 12/781131 [patent_app_country] => US [patent_app_date] => 2010-05-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 10667 [patent_no_of_claims] => 5 [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/A1/0300/20100300701.pdf [firstpage_image] =>[orig_patent_app_number] => 12781131 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/781131
Artificial lift system May 16, 2010 Issued
Array ( [id] => 4472567 [patent_doc_number] => 07905293 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-03-15 [patent_title] => 'Hybrid wellhead system and method of use' [patent_app_type] => utility [patent_app_number] => 12/780078 [patent_app_country] => US [patent_app_date] => 2010-05-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 7437 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/905/07905293.pdf [firstpage_image] =>[orig_patent_app_number] => 12780078 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/780078
Hybrid wellhead system and method of use May 13, 2010 Issued
Array ( [id] => 6465140 [patent_doc_number] => 20100206576 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-08-19 [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] => 12/768337 [patent_app_country] => US [patent_app_date] => 2010-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 48 [patent_figures_cnt] => 48 [patent_no_of_words] => 20884 [patent_no_of_claims] => 52 [patent_no_of_ind_claims] => 9 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0206/20100206576.pdf [firstpage_image] =>[orig_patent_app_number] => 12768337 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/768337
Apparatus and method for recovering fluids from a well and/or injecting fluids into a well Apr 26, 2010 Issued
Array ( [id] => 6464837 [patent_doc_number] => 20100206546 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-08-19 [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] => 12/768324 [patent_app_country] => US [patent_app_date] => 2010-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 48 [patent_figures_cnt] => 48 [patent_no_of_words] => 20884 [patent_no_of_claims] => 5 [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/A1/0206/20100206546.pdf [firstpage_image] =>[orig_patent_app_number] => 12768324 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/768324
Apparatus and method for recovering fluids from a well and/or injecting fluids into a well Apr 26, 2010 Issued
Array ( [id] => 7708693 [patent_doc_number] => 08091630 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-01-10 [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] => 12/768332 [patent_app_country] => US [patent_app_date] => 2010-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 47 [patent_figures_cnt] => 51 [patent_no_of_words] => 21287 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/091/08091630.pdf [firstpage_image] =>[orig_patent_app_number] => 12768332 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/768332
Apparatus and method for recovering fluids from a well and/or injecting fluids into a well Apr 26, 2010 Issued
Array ( [id] => 4535079 [patent_doc_number] => 07958950 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-06-14 [patent_title] => 'Reamer and methods for directional drilling' [patent_app_type] => utility [patent_app_number] => 12/767085 [patent_app_country] => US [patent_app_date] => 2010-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 6893 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/958/07958950.pdf [firstpage_image] =>[orig_patent_app_number] => 12767085 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/767085
Reamer and methods for directional drilling Apr 25, 2010 Issued
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