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] => 298871 [patent_doc_number] => 07537066 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2009-05-26 [patent_title] => 'Automatic driller' [patent_app_type] => utility [patent_app_number] => 11/748271 [patent_app_country] => US [patent_app_date] => 2007-05-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2732 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/537/07537066.pdf [firstpage_image] =>[orig_patent_app_number] => 11748271 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/748271
Automatic driller May 13, 2007 Issued
Array ( [id] => 5227676 [patent_doc_number] => 20070289782 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-12-20 [patent_title] => 'REAMING TOOL SUITABLE FOR RUNNING ON CASING OR LINER AND METHOD OF REAMING' [patent_app_type] => utility [patent_app_number] => 11/747651 [patent_app_country] => US [patent_app_date] => 2007-05-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2833 [patent_no_of_claims] => 25 [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/A1/0289/20070289782.pdf [firstpage_image] =>[orig_patent_app_number] => 11747651 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/747651
Reaming tool suitable for running on casing or liner May 10, 2007 Issued
Array ( [id] => 183135 [patent_doc_number] => 07647968 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-01-19 [patent_title] => 'Screen saver sub' [patent_app_type] => utility [patent_app_number] => 11/746991 [patent_app_country] => US [patent_app_date] => 2007-05-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1357 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/647/07647968.pdf [firstpage_image] =>[orig_patent_app_number] => 11746991 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/746991
Screen saver sub May 9, 2007 Issued
Array ( [id] => 4875944 [patent_doc_number] => 20080149326 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-06-26 [patent_title] => 'Method and Apparatus for Positioning the Proximal End of a Tubular String Above a Spider' [patent_app_type] => utility [patent_app_number] => 11/740481 [patent_app_country] => US [patent_app_date] => 2007-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 8067 [patent_no_of_claims] => 24 [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/A1/0149/20080149326.pdf [firstpage_image] =>[orig_patent_app_number] => 11740481 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/740481
Method and apparatus for positioning the proximal end of a tubular string above a spider Apr 25, 2007 Issued
Array ( [id] => 4962610 [patent_doc_number] => 20080105430 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-05-08 [patent_title] => 'Method and Apparatus for Perforating a Casing and Producing Hydrocarbons' [patent_app_type] => utility [patent_app_number] => 11/740171 [patent_app_country] => US [patent_app_date] => 2007-04-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 24 [patent_no_of_words] => 8569 [patent_no_of_claims] => 28 [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/A1/0105/20080105430.pdf [firstpage_image] =>[orig_patent_app_number] => 11740171 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/740171
Method and apparatus for perforating a casing and producing hydrocarbons Apr 24, 2007 Issued
Array ( [id] => 5059773 [patent_doc_number] => 20070221409 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-09-27 [patent_title] => 'Rotary Valve for Steering a Drill String' [patent_app_type] => utility [patent_app_number] => 11/737034 [patent_app_country] => US [patent_app_date] => 2007-04-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 4040 [patent_no_of_claims] => 20 [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/A1/0221/20070221409.pdf [firstpage_image] =>[orig_patent_app_number] => 11737034 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/737034
Rotary valve for steering a drill string Apr 17, 2007 Issued
Array ( [id] => 5098081 [patent_doc_number] => 20070181341 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-08-09 [patent_title] => 'MWD FORMATION TESTER' [patent_app_type] => utility [patent_app_number] => 11/735901 [patent_app_country] => US [patent_app_date] => 2007-04-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 23 [patent_no_of_words] => 14611 [patent_no_of_claims] => 16 [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/A1/0181/20070181341.pdf [firstpage_image] =>[orig_patent_app_number] => 11735901 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/735901
MWD formation tester Apr 15, 2007 Issued
Array ( [id] => 168367 [patent_doc_number] => 07661490 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-02-16 [patent_title] => 'Stabilizing system and methods for a drill bit' [patent_app_type] => utility [patent_app_number] => 11/733498 [patent_app_country] => US [patent_app_date] => 2007-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 16 [patent_no_of_words] => 6111 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/661/07661490.pdf [firstpage_image] =>[orig_patent_app_number] => 11733498 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/733498
Stabilizing system and methods for a drill bit Apr 9, 2007 Issued
Array ( [id] => 5371100 [patent_doc_number] => 20090308660 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-12-17 [patent_title] => 'AUXILIARY EQUIPMENT FOR USE WITH DRILLING APPARATUS' [patent_app_type] => utility [patent_app_number] => 12/297921 [patent_app_country] => US [patent_app_date] => 2007-04-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2816 [patent_no_of_claims] => 11 [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/A1/0308/20090308660.pdf [firstpage_image] =>[orig_patent_app_number] => 12297921 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/297921
Auxiliary equipment for use with drilling apparatus Apr 3, 2007 Issued
Array ( [id] => 1831 [patent_doc_number] => 07810583 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-10-12 [patent_title] => 'Drilling systems and methods' [patent_app_type] => utility [patent_app_number] => 12/296141 [patent_app_country] => US [patent_app_date] => 2007-04-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3434 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/810/07810583.pdf [firstpage_image] =>[orig_patent_app_number] => 12296141 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/296141
Drilling systems and methods Apr 3, 2007 Issued
Array ( [id] => 5059772 [patent_doc_number] => 20070221408 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-09-27 [patent_title] => 'Drilling at a Resonant Frequency' [patent_app_type] => utility [patent_app_number] => 11/693838 [patent_app_country] => US [patent_app_date] => 2007-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 4151 [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/A1/0221/20070221408.pdf [firstpage_image] =>[orig_patent_app_number] => 11693838 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/693838
Drilling at a resonant frequency Mar 29, 2007 Issued
Array ( [id] => 4714308 [patent_doc_number] => 20080236830 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-10-02 [patent_title] => 'Optimized machining process for cutting tubulars downhole' [patent_app_type] => utility [patent_app_number] => 11/728461 [patent_app_country] => US [patent_app_date] => 2007-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2640 [patent_no_of_claims] => 32 [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/A1/0236/20080236830.pdf [firstpage_image] =>[orig_patent_app_number] => 11728461 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/728461
Optimized machining process for cutting tubulars downhole Mar 25, 2007 Issued
Array ( [id] => 4974160 [patent_doc_number] => 20070215389 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-09-20 [patent_title] => 'Matrix Drill Bits With Back Raked Cutting Elements' [patent_app_type] => utility [patent_app_number] => 11/687472 [patent_app_country] => US [patent_app_date] => 2007-03-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2697 [patent_no_of_claims] => 25 [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/A1/0215/20070215389.pdf [firstpage_image] =>[orig_patent_app_number] => 11687472 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/687472
Matrix drill bits with back raked cutting elements Mar 15, 2007 Issued
Array ( [id] => 799782 [patent_doc_number] => 07424922 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-09-16 [patent_title] => 'Rotary valve for a jack hammer' [patent_app_type] => utility [patent_app_number] => 11/686638 [patent_app_country] => US [patent_app_date] => 2007-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 3964 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/424/07424922.pdf [firstpage_image] =>[orig_patent_app_number] => 11686638 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/686638
Rotary valve for a jack hammer Mar 14, 2007 Issued
Array ( [id] => 5098045 [patent_doc_number] => 20070181305 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-08-09 [patent_title] => 'DOWNHOLE MILLING MACHINE AND METHOD OF USE' [patent_app_type] => utility [patent_app_number] => 11/685595 [patent_app_country] => US [patent_app_date] => 2007-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 25 [patent_figures_cnt] => 25 [patent_no_of_words] => 16282 [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/A1/0181/20070181305.pdf [firstpage_image] =>[orig_patent_app_number] => 11685595 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/685595
Downhole milling machine and method of use Mar 12, 2007 Issued
Array ( [id] => 805158 [patent_doc_number] => 07419016 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-09-02 [patent_title] => 'Bi-center drill bit' [patent_app_type] => utility [patent_app_number] => 11/680997 [patent_app_country] => US [patent_app_date] => 2007-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 3996 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/419/07419016.pdf [firstpage_image] =>[orig_patent_app_number] => 11680997 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/680997
Bi-center drill bit Feb 28, 2007 Issued
Array ( [id] => 4722907 [patent_doc_number] => 20080202754 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-08-28 [patent_title] => 'Casing window milling assembly' [patent_app_type] => utility [patent_app_number] => 11/710161 [patent_app_country] => US [patent_app_date] => 2007-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5524 [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/A1/0202/20080202754.pdf [firstpage_image] =>[orig_patent_app_number] => 11710161 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/710161
Casing window milling assembly Feb 22, 2007 Issued
Array ( [id] => 5109866 [patent_doc_number] => 20070193781 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-08-23 [patent_title] => 'Roller Cone Drill Bit With Debris Flow Paths Through Associated Support Arms' [patent_app_type] => utility [patent_app_number] => 11/677151 [patent_app_country] => US [patent_app_date] => 2007-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 8216 [patent_no_of_claims] => 26 [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/A1/0193/20070193781.pdf [firstpage_image] =>[orig_patent_app_number] => 11677151 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/677151
Roller cone drill bit with debris flow paths through associated support arms Feb 20, 2007 Issued
Array ( [id] => 5109834 [patent_doc_number] => 20070193749 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-08-23 [patent_title] => 'MOBILE SNUBBING SYSTEM' [patent_app_type] => utility [patent_app_number] => 11/677561 [patent_app_country] => US [patent_app_date] => 2007-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 38 [patent_figures_cnt] => 38 [patent_no_of_words] => 6739 [patent_no_of_claims] => 36 [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/A1/0193/20070193749.pdf [firstpage_image] =>[orig_patent_app_number] => 11677561 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/677561
Mobile snubbing system Feb 20, 2007 Issued
Array ( [id] => 372455 [patent_doc_number] => 07472756 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-01-06 [patent_title] => 'Valve apparatus with seal assembly' [patent_app_type] => utility [patent_app_number] => 11/706694 [patent_app_country] => US [patent_app_date] => 2007-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 21 [patent_no_of_words] => 7175 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/472/07472756.pdf [firstpage_image] =>[orig_patent_app_number] => 11706694 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/706694
Valve apparatus with seal assembly Feb 12, 2007 Issued
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