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] => 4428906 [patent_doc_number] => 07967082 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-06-28 [patent_title] => 'Downhole mechanism' [patent_app_type] => utility [patent_app_number] => 12/039635 [patent_app_country] => US [patent_app_date] => 2008-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 3145 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/967/07967082.pdf [firstpage_image] =>[orig_patent_app_number] => 12039635 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/039635
Downhole mechanism Feb 27, 2008 Issued
Array ( [id] => 4863187 [patent_doc_number] => 20080142263 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-06-19 [patent_title] => 'Downhole Valve Mechanism' [patent_app_type] => utility [patent_app_number] => 12/039608 [patent_app_country] => US [patent_app_date] => 2008-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 2896 [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/A1/0142/20080142263.pdf [firstpage_image] =>[orig_patent_app_number] => 12039608 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/039608
Downhole valve mechanism Feb 27, 2008 Issued
Array ( [id] => 4848854 [patent_doc_number] => 20080314596 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-12-25 [patent_title] => 'APPARATUS AND METHOD FOR WELLBORE ISOLATION' [patent_app_type] => utility [patent_app_number] => 12/039150 [patent_app_country] => US [patent_app_date] => 2008-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2211 [patent_no_of_claims] => 17 [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/A1/0314/20080314596.pdf [firstpage_image] =>[orig_patent_app_number] => 12039150 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/039150
APPARATUS AND METHOD FOR WELLBORE ISOLATION Feb 27, 2008 Abandoned
Array ( [id] => 4863199 [patent_doc_number] => 20080142274 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-06-19 [patent_title] => 'Downhole Hammer Assembly' [patent_app_type] => utility [patent_app_number] => 12/037764 [patent_app_country] => US [patent_app_date] => 2008-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3628 [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/A1/0142/20080142274.pdf [firstpage_image] =>[orig_patent_app_number] => 12037764 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/037764
Downhole hammer assembly Feb 25, 2008 Issued
Array ( [id] => 4863198 [patent_doc_number] => 20080142273 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-06-19 [patent_title] => 'Downhole Hammer Assembly' [patent_app_type] => utility [patent_app_number] => 12/037733 [patent_app_country] => US [patent_app_date] => 2008-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3619 [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/A1/0142/20080142273.pdf [firstpage_image] =>[orig_patent_app_number] => 12037733 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/037733
Downhole hammer assembly Feb 25, 2008 Issued
Array ( [id] => 4748471 [patent_doc_number] => 20080156541 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-07-03 [patent_title] => 'Downhole Hammer Assembly' [patent_app_type] => utility [patent_app_number] => 12/037682 [patent_app_country] => US [patent_app_date] => 2008-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3601 [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/A1/0156/20080156541.pdf [firstpage_image] =>[orig_patent_app_number] => 12037682 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/037682
Downhole hammer assembly Feb 25, 2008 Issued
Array ( [id] => 4429323 [patent_doc_number] => 07896088 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-03-01 [patent_title] => 'Wellsite systems utilizing deployable structure' [patent_app_type] => utility [patent_app_number] => 12/034191 [patent_app_country] => US [patent_app_date] => 2008-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 44 [patent_no_of_words] => 14907 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/896/07896088.pdf [firstpage_image] =>[orig_patent_app_number] => 12034191 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/034191
Wellsite systems utilizing deployable structure Feb 19, 2008 Issued
Array ( [id] => 4593859 [patent_doc_number] => 07980305 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-07-19 [patent_title] => 'Ram BOP position sensor' [patent_app_type] => utility [patent_app_number] => 12/026851 [patent_app_country] => US [patent_app_date] => 2008-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 4682 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/980/07980305.pdf [firstpage_image] =>[orig_patent_app_number] => 12026851 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/026851
Ram BOP position sensor Feb 5, 2008 Issued
Array ( [id] => 4819720 [patent_doc_number] => 20080121394 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-05-29 [patent_title] => 'Downhole Sampling Tool and Method for Using Same' [patent_app_type] => utility [patent_app_number] => 12/023605 [patent_app_country] => US [patent_app_date] => 2008-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 7727 [patent_no_of_claims] => 19 [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/A1/0121/20080121394.pdf [firstpage_image] =>[orig_patent_app_number] => 12023605 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/023605
Downhole sampling tool and method for using same Jan 30, 2008 Issued
Array ( [id] => 214369 [patent_doc_number] => 07617886 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-11-17 [patent_title] => 'Fluid-actuated hammer bit' [patent_app_type] => utility [patent_app_number] => 12/019782 [patent_app_country] => US [patent_app_date] => 2008-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 11 [patent_no_of_words] => 3664 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/617/07617886.pdf [firstpage_image] =>[orig_patent_app_number] => 12019782 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/019782
Fluid-actuated hammer bit Jan 24, 2008 Issued
Array ( [id] => 216059 [patent_doc_number] => 07610964 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-11-03 [patent_title] => 'Positive displacement pump' [patent_app_type] => utility [patent_app_number] => 12/016591 [patent_app_country] => US [patent_app_date] => 2008-01-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2445 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/610/07610964.pdf [firstpage_image] =>[orig_patent_app_number] => 12016591 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/016591
Positive displacement pump Jan 17, 2008 Issued
Array ( [id] => 4440396 [patent_doc_number] => 07861788 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-01-04 [patent_title] => 'Casing valves system for selective well stimulation and control' [patent_app_type] => utility [patent_app_number] => 12/016525 [patent_app_country] => US [patent_app_date] => 2008-01-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 17 [patent_no_of_words] => 11706 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/861/07861788.pdf [firstpage_image] =>[orig_patent_app_number] => 12016525 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/016525
Casing valves system for selective well stimulation and control Jan 17, 2008 Issued
Array ( [id] => 4842697 [patent_doc_number] => 20080179105 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-07-31 [patent_title] => 'Hole coring system with lever arm' [patent_app_type] => utility [patent_app_number] => 12/009169 [patent_app_country] => US [patent_app_date] => 2008-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 22 [patent_no_of_words] => 12511 [patent_no_of_claims] => 18 [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/A1/0179/20080179105.pdf [firstpage_image] =>[orig_patent_app_number] => 12009169 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/009169
Hole coring system with lever arm Jan 16, 2008 Issued
Array ( [id] => 280783 [patent_doc_number] => 07552778 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-06-30 [patent_title] => 'Seal cup for a wellbore tool and method' [patent_app_type] => utility [patent_app_number] => 12/014000 [patent_app_country] => US [patent_app_date] => 2008-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5492 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/552/07552778.pdf [firstpage_image] =>[orig_patent_app_number] => 12014000 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/014000
Seal cup for a wellbore tool and method Jan 13, 2008 Issued
Array ( [id] => 4546608 [patent_doc_number] => 07841410 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-11-30 [patent_title] => 'Method and apparatus for dropping a pump down plug or ball' [patent_app_type] => utility [patent_app_number] => 11/951802 [patent_app_country] => US [patent_app_date] => 2007-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 28 [patent_no_of_words] => 4775 [patent_no_of_claims] => 32 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 236 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/841/07841410.pdf [firstpage_image] =>[orig_patent_app_number] => 11951802 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/951802
Method and apparatus for dropping a pump down plug or ball Dec 5, 2007 Issued
Array ( [id] => 361995 [patent_doc_number] => 07481269 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-01-27 [patent_title] => 'Hybrid wellhead system and method of use' [patent_app_type] => utility [patent_app_number] => 11/998300 [patent_app_country] => US [patent_app_date] => 2007-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 7278 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/481/07481269.pdf [firstpage_image] =>[orig_patent_app_number] => 11998300 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/998300
Hybrid wellhead system and method of use Nov 28, 2007 Issued
Array ( [id] => 4781923 [patent_doc_number] => 20080135252 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-06-12 [patent_title] => 'Adjustable Expansion Cone Assembly' [patent_app_type] => utility [patent_app_number] => 11/942478 [patent_app_country] => US [patent_app_date] => 2007-11-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 88 [patent_figures_cnt] => 88 [patent_no_of_words] => 43756 [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/A1/0135/20080135252.pdf [firstpage_image] =>[orig_patent_app_number] => 11942478 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/942478
Adjustable Expansion Cone Assembly Nov 18, 2007 Abandoned
Array ( [id] => 565600 [patent_doc_number] => 07451835 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2008-11-18 [patent_title] => 'Downhole turbine' [patent_app_type] => utility [patent_app_number] => 11/940091 [patent_app_country] => US [patent_app_date] => 2007-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 14 [patent_no_of_words] => 3070 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 163 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/451/07451835.pdf [firstpage_image] =>[orig_patent_app_number] => 11940091 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/940091
Downhole turbine Nov 13, 2007 Issued
Array ( [id] => 578496 [patent_doc_number] => 07434634 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2008-10-14 [patent_title] => 'Downhole turbine' [patent_app_type] => utility [patent_app_number] => 11/940117 [patent_app_country] => US [patent_app_date] => 2007-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 14 [patent_no_of_words] => 3121 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/434/07434634.pdf [firstpage_image] =>[orig_patent_app_number] => 11940117 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/940117
Downhole turbine Nov 13, 2007 Issued
Array ( [id] => 235562 [patent_doc_number] => 07594540 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-09-29 [patent_title] => 'Methods and apparatus for applying torque and rotation to connections' [patent_app_type] => utility [patent_app_number] => 11/930287 [patent_app_country] => US [patent_app_date] => 2007-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 17 [patent_no_of_words] => 9196 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/594/07594540.pdf [firstpage_image] =>[orig_patent_app_number] => 11930287 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/930287
Methods and apparatus for applying torque and rotation to connections Oct 30, 2007 Issued
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