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] => 89428 [patent_doc_number] => 07730967 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-06-08 [patent_title] => 'Drilling wellbores with optimal physical drill string conditions' [patent_app_type] => utility [patent_app_number] => 10/873091 [patent_app_country] => US [patent_app_date] => 2004-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 9181 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/730/07730967.pdf [firstpage_image] =>[orig_patent_app_number] => 10873091 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/873091
Drilling wellbores with optimal physical drill string conditions Jun 21, 2004 Issued
Array ( [id] => 6928467 [patent_doc_number] => 20050279499 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-12-22 [patent_title] => 'DOWNHOLE SAMPLING TOOL AND METHOD FOR USING SAME' [patent_app_type] => utility [patent_app_number] => 10/710111 [patent_app_country] => US [patent_app_date] => 2004-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 7697 [patent_no_of_claims] => 46 [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/A1/0279/20050279499.pdf [firstpage_image] =>[orig_patent_app_number] => 10710111 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/710111
Downhole sampling tool and method for using same Jun 17, 2004 Issued
Array ( [id] => 699723 [patent_doc_number] => 07063175 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2006-06-20 [patent_title] => 'Method and apparatus for retaining a down-hole fluid motor and bit assembly' [patent_app_type] => utility [patent_app_number] => 10/870661 [patent_app_country] => US [patent_app_date] => 2004-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 1699 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/063/07063175.pdf [firstpage_image] =>[orig_patent_app_number] => 10870661 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/870661
Method and apparatus for retaining a down-hole fluid motor and bit assembly Jun 15, 2004 Issued
Array ( [id] => 510318 [patent_doc_number] => 07188691 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-03-13 [patent_title] => 'Metal seal with impact-absorbing ring' [patent_app_type] => utility [patent_app_number] => 10/868511 [patent_app_country] => US [patent_app_date] => 2004-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 6198 [patent_no_of_claims] => 44 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/188/07188691.pdf [firstpage_image] =>[orig_patent_app_number] => 10868511 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/868511
Metal seal with impact-absorbing ring Jun 14, 2004 Issued
Array ( [id] => 845903 [patent_doc_number] => 07383886 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-06-10 [patent_title] => 'Device and a method for selective control of fluid flow between a well and surrounding rocks' [patent_app_type] => utility [patent_app_number] => 10/561721 [patent_app_country] => US [patent_app_date] => 2004-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3178 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/383/07383886.pdf [firstpage_image] =>[orig_patent_app_number] => 10561721 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/561721
Device and a method for selective control of fluid flow between a well and surrounding rocks Jun 14, 2004 Issued
Array ( [id] => 7322617 [patent_doc_number] => 20040251023 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-16 [patent_title] => 'Downhole surge pressure reduction and filtering apparatus' [patent_app_type] => new [patent_app_number] => 10/863165 [patent_app_country] => US [patent_app_date] => 2004-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 7263 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 11 [patent_words_short_claim] => 10 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0251/20040251023.pdf [firstpage_image] =>[orig_patent_app_number] => 10863165 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/863165
Downhole surge pressure reduction and filtering apparatus Jun 7, 2004 Issued
Array ( [id] => 7360706 [patent_doc_number] => 20040216867 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-11-04 [patent_title] => 'Dump hole dump valve' [patent_app_type] => new [patent_app_number] => 10/862681 [patent_app_country] => US [patent_app_date] => 2004-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1710 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 512 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0216/20040216867.pdf [firstpage_image] =>[orig_patent_app_number] => 10862681 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/862681
Dump hole dump valve Jun 6, 2004 Abandoned
Array ( [id] => 7360758 [patent_doc_number] => 20040216879 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-11-04 [patent_title] => 'Apparatus and method for disconnecting a tail pipe and maintaining fluid inside a workstring' [patent_app_type] => new [patent_app_number] => 10/860828 [patent_app_country] => US [patent_app_date] => 2004-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4436 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0216/20040216879.pdf [firstpage_image] =>[orig_patent_app_number] => 10860828 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/860828
Apparatus and method for disconnecting a tail pipe and maintaining fluid inside a workstring Jun 3, 2004 Issued
Array ( [id] => 7336989 [patent_doc_number] => 20040244981 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-09 [patent_title] => 'Bypass valve for a flow through gas lift plunger' [patent_app_type] => new [patent_app_number] => 10/861861 [patent_app_country] => US [patent_app_date] => 2004-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 1793 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0244/20040244981.pdf [firstpage_image] =>[orig_patent_app_number] => 10861861 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/861861
Bypass valve for a flow through gas lift plunger Jun 3, 2004 Abandoned
Array ( [id] => 5915101 [patent_doc_number] => 20060237194 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2006-10-26 [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] => 10/558593 [patent_app_country] => US [patent_app_date] => 2004-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 48 [patent_figures_cnt] => 48 [patent_no_of_words] => 20882 [patent_no_of_claims] => 75 [patent_no_of_ind_claims] => 32 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0237/20060237194.pdf [firstpage_image] =>[orig_patent_app_number] => 10558593 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/558593
Apparatus and method for recovering fluids from a well and/or injecting fluids into a well May 31, 2004 Issued
Array ( [id] => 7107675 [patent_doc_number] => 20050205249 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-09-22 [patent_title] => 'Apparatus and method for driving submerged pumps' [patent_app_type] => utility [patent_app_number] => 10/856471 [patent_app_country] => US [patent_app_date] => 2004-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 1597 [patent_no_of_claims] => 12 [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/A1/0205/20050205249.pdf [firstpage_image] =>[orig_patent_app_number] => 10856471 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/856471
Apparatus and method for driving submerged pumps May 27, 2004 Issued
Array ( [id] => 7072126 [patent_doc_number] => 20050145392 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-07-07 [patent_title] => 'Wellbore liner system' [patent_app_type] => utility [patent_app_number] => 10/853673 [patent_app_country] => US [patent_app_date] => 2004-05-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 7669 [patent_no_of_claims] => 3 [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/A1/0145/20050145392.pdf [firstpage_image] =>[orig_patent_app_number] => 10853673 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/853673
Wellbore liner system May 24, 2004 Issued
Array ( [id] => 528541 [patent_doc_number] => 07168508 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-01-30 [patent_title] => 'Logging-while-coring method and apparatus' [patent_app_type] => utility [patent_app_number] => 10/850691 [patent_app_country] => US [patent_app_date] => 2004-05-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 5223 [patent_no_of_claims] => 43 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/168/07168508.pdf [firstpage_image] =>[orig_patent_app_number] => 10850691 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/850691
Logging-while-coring method and apparatus May 20, 2004 Issued
Array ( [id] => 770644 [patent_doc_number] => 07000692 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-02-21 [patent_title] => 'Apparatus and methods for placing downhole tools in a wellbore' [patent_app_type] => utility [patent_app_number] => 10/848337 [patent_app_country] => US [patent_app_date] => 2004-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3975 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/000/07000692.pdf [firstpage_image] =>[orig_patent_app_number] => 10848337 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/848337
Apparatus and methods for placing downhole tools in a wellbore May 17, 2004 Issued
Array ( [id] => 7203218 [patent_doc_number] => 20050257928 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-11-24 [patent_title] => 'Hydraulically set concentric packer with multiple umbilical bypass through the piston' [patent_app_type] => utility [patent_app_number] => 10/847931 [patent_app_country] => US [patent_app_date] => 2004-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2950 [patent_no_of_claims] => 49 [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/A1/0257/20050257928.pdf [firstpage_image] =>[orig_patent_app_number] => 10847931 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/847931
Hydraulically set concentric packer with multiple umbilical bypass through the piston May 17, 2004 Issued
Array ( [id] => 7322636 [patent_doc_number] => 20040251036 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-16 [patent_title] => 'Well operations system' [patent_app_type] => new [patent_app_number] => 10/844871 [patent_app_country] => US [patent_app_date] => 2004-05-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 4766 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 3 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0251/20040251036.pdf [firstpage_image] =>[orig_patent_app_number] => 10844871 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/844871
Well operations system May 12, 2004 Issued
Array ( [id] => 7042723 [patent_doc_number] => 20050247450 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-11-10 [patent_title] => 'Flame and Heat Resistant Oilfield Tools' [patent_app_type] => utility [patent_app_number] => 10/709491 [patent_app_country] => US [patent_app_date] => 2004-05-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3517 [patent_no_of_claims] => 31 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0247/20050247450.pdf [firstpage_image] =>[orig_patent_app_number] => 10709491 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/709491
Flame and Heat Resistant Oilfield Tools May 9, 2004 Abandoned
Array ( [id] => 799777 [patent_doc_number] => 07424916 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-09-16 [patent_title] => 'Flameless hot oiler' [patent_app_type] => utility [patent_app_number] => 10/838104 [patent_app_country] => US [patent_app_date] => 2004-05-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4383 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/424/07424916.pdf [firstpage_image] =>[orig_patent_app_number] => 10838104 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/838104
Flameless hot oiler May 2, 2004 Issued
Array ( [id] => 417447 [patent_doc_number] => 07275598 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-10-02 [patent_title] => 'Uncollapsed expandable wellbore junction' [patent_app_type] => utility [patent_app_number] => 10/836431 [patent_app_country] => US [patent_app_date] => 2004-04-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 18 [patent_no_of_words] => 3449 [patent_no_of_claims] => 61 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/275/07275598.pdf [firstpage_image] =>[orig_patent_app_number] => 10836431 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/836431
Uncollapsed expandable wellbore junction Apr 29, 2004 Issued
Array ( [id] => 635954 [patent_doc_number] => 07124829 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-10-24 [patent_title] => 'Tubular expansion fluid production assembly and method' [patent_app_type] => utility [patent_app_number] => 10/831076 [patent_app_country] => US [patent_app_date] => 2004-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 7561 [patent_no_of_claims] => 34 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/124/07124829.pdf [firstpage_image] =>[orig_patent_app_number] => 10831076 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/831076
Tubular expansion fluid production assembly and method Apr 22, 2004 Issued
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