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] => 7285676 [patent_doc_number] => 20040108116 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-06-10 [patent_title] => 'Valves for use in wells' [patent_app_type] => new [patent_app_number] => 10/693405 [patent_app_country] => US [patent_app_date] => 2003-10-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 6298 [patent_no_of_claims] => 53 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 39 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0108/20040108116.pdf [firstpage_image] =>[orig_patent_app_number] => 10693405 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/693405
Valves for use in wells Oct 23, 2003 Issued
Array ( [id] => 7153092 [patent_doc_number] => 20050082055 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-04-21 [patent_title] => 'Gripper assembly for downhole tools' [patent_app_type] => utility [patent_app_number] => 10/690054 [patent_app_country] => US [patent_app_date] => 2003-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 19 [patent_no_of_words] => 14583 [patent_no_of_claims] => 20 [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/A1/0082/20050082055.pdf [firstpage_image] =>[orig_patent_app_number] => 10690054 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/690054
Gripper assembly for downhole tools Oct 20, 2003 Issued
Array ( [id] => 503046 [patent_doc_number] => 07195082 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-03-27 [patent_title] => 'Drill head steering' [patent_app_type] => utility [patent_app_number] => 10/531711 [patent_app_country] => US [patent_app_date] => 2003-10-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 2526 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 62 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/195/07195082.pdf [firstpage_image] =>[orig_patent_app_number] => 10531711 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/531711
Drill head steering Oct 19, 2003 Issued
Array ( [id] => 611665 [patent_doc_number] => 07147057 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-12-12 [patent_title] => 'Loop systems and methods of using the same for conveying and distributing thermal energy into a wellbore' [patent_app_type] => utility [patent_app_number] => 10/680901 [patent_app_country] => US [patent_app_date] => 2003-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 9027 [patent_no_of_claims] => 72 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/147/07147057.pdf [firstpage_image] =>[orig_patent_app_number] => 10680901 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/680901
Loop systems and methods of using the same for conveying and distributing thermal energy into a wellbore Oct 5, 2003 Issued
Array ( [id] => 7417598 [patent_doc_number] => 20040182606 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-09-23 [patent_title] => 'Method and system for predicting performance of a drilling system for a given formation' [patent_app_type] => new [patent_app_number] => 10/669105 [patent_app_country] => US [patent_app_date] => 2003-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 20297 [patent_no_of_claims] => 39 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0182/20040182606.pdf [firstpage_image] =>[orig_patent_app_number] => 10669105 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/669105
Method and system for predicting performance of a drilling system for a given formation Sep 22, 2003 Issued
Array ( [id] => 7072115 [patent_doc_number] => 20050145381 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-07-07 [patent_title] => 'ORIENTABLE WHIPSTOCK TOOL AND METHOD' [patent_app_type] => utility [patent_app_number] => 10/668731 [patent_app_country] => US [patent_app_date] => 2003-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2096 [patent_no_of_claims] => 20 [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/A1/0145/20050145381.pdf [firstpage_image] =>[orig_patent_app_number] => 10668731 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/668731
Orientable whipstock tool and method Sep 22, 2003 Issued
Array ( [id] => 7447312 [patent_doc_number] => 20040099418 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-05-27 [patent_title] => 'Reservoir communication by creating a local underbalance and using treatment fluid' [patent_app_type] => new [patent_app_number] => 10/667011 [patent_app_country] => US [patent_app_date] => 2003-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 6125 [patent_no_of_claims] => 37 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 48 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0099/20040099418.pdf [firstpage_image] =>[orig_patent_app_number] => 10667011 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/667011
Reservoir communication by creating a local underbalance and using treatment fluid Sep 18, 2003 Issued
Array ( [id] => 7278328 [patent_doc_number] => 20040060705 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-04-01 [patent_title] => 'Method and apparatus for increasing fluid recovery from a subterranean formation' [patent_app_type] => new [patent_app_number] => 10/664784 [patent_app_country] => US [patent_app_date] => 2003-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 14474 [patent_no_of_claims] => 71 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 228 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0060/20040060705.pdf [firstpage_image] =>[orig_patent_app_number] => 10664784 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/664784
Method and apparatus for increasing fluid recovery from a subterranean formation Sep 16, 2003 Abandoned
Array ( [id] => 7124674 [patent_doc_number] => 20050056417 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-03-17 [patent_title] => 'Hydraulic setting tool for packers' [patent_app_type] => utility [patent_app_number] => 10/661171 [patent_app_country] => US [patent_app_date] => 2003-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3988 [patent_no_of_claims] => 24 [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/A1/0056/20050056417.pdf [firstpage_image] =>[orig_patent_app_number] => 10661171 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/661171
Hydraulic setting tool for packers Sep 10, 2003 Issued
Array ( [id] => 611662 [patent_doc_number] => 07147054 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-12-12 [patent_title] => 'Gravel packing a well' [patent_app_type] => utility [patent_app_number] => 10/654101 [patent_app_country] => US [patent_app_date] => 2003-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 12 [patent_no_of_words] => 4644 [patent_no_of_claims] => 40 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/147/07147054.pdf [firstpage_image] =>[orig_patent_app_number] => 10654101 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/654101
Gravel packing a well Sep 2, 2003 Issued
Array ( [id] => 650112 [patent_doc_number] => 07111687 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-09-26 [patent_title] => 'Recovery of production fluids from an oil or gas well' [patent_app_type] => utility [patent_app_number] => 10/651703 [patent_app_country] => US [patent_app_date] => 2003-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 36 [patent_figures_cnt] => 38 [patent_no_of_words] => 10258 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 40 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/111/07111687.pdf [firstpage_image] =>[orig_patent_app_number] => 10651703 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/651703
Recovery of production fluids from an oil or gas well Aug 28, 2003 Issued
Array ( [id] => 688221 [patent_doc_number] => 07073577 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-07-11 [patent_title] => 'Array of wells with connected permeable zones for hydrocarbon recovery' [patent_app_type] => utility [patent_app_number] => 10/652351 [patent_app_country] => US [patent_app_date] => 2003-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 6191 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/073/07073577.pdf [firstpage_image] =>[orig_patent_app_number] => 10652351 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/652351
Array of wells with connected permeable zones for hydrocarbon recovery Aug 28, 2003 Issued
Array ( [id] => 7079763 [patent_doc_number] => 20050045383 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-03-03 [patent_title] => 'Method, apparatus and system for substantially reducing or eliminating the plugging of downhole sand control screens' [patent_app_type] => utility [patent_app_number] => 10/649241 [patent_app_country] => US [patent_app_date] => 2003-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3801 [patent_no_of_claims] => 24 [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/A1/0045/20050045383.pdf [firstpage_image] =>[orig_patent_app_number] => 10649241 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/649241
Method, apparatus and system for substantially reducing or eliminating the plugging of downhole sand control screens Aug 26, 2003 Abandoned
Array ( [id] => 7377581 [patent_doc_number] => 20040035577 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-02-26 [patent_title] => 'Downhole flow meter' [patent_app_type] => new [patent_app_number] => 10/644497 [patent_app_country] => US [patent_app_date] => 2003-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3840 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 38 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0035/20040035577.pdf [firstpage_image] =>[orig_patent_app_number] => 10644497 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/644497
Downhole flow meter Aug 19, 2003 Issued
Array ( [id] => 7327548 [patent_doc_number] => 20040129422 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-07-08 [patent_title] => 'Apparatus and method for wellbore isolation' [patent_app_type] => new [patent_app_number] => 10/604811 [patent_app_country] => US [patent_app_date] => 2003-08-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2239 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0129/20040129422.pdf [firstpage_image] =>[orig_patent_app_number] => 10604811 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/604811
Apparatus and method for wellbore isolation Aug 18, 2003 Issued
Array ( [id] => 7188977 [patent_doc_number] => 20050039922 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-02-24 [patent_title] => 'Safety valve having extension spring closure mechanism' [patent_app_type] => utility [patent_app_number] => 10/642801 [patent_app_country] => US [patent_app_date] => 2003-08-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 3788 [patent_no_of_claims] => 69 [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/A1/0039/20050039922.pdf [firstpage_image] =>[orig_patent_app_number] => 10642801 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/642801
Safety valve having extension spring closure mechanism Aug 17, 2003 Issued
Array ( [id] => 7029859 [patent_doc_number] => 20050028986 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-02-10 [patent_title] => 'Latch-type tubing protector having C-shaped clamping members, a minimized running profile and a large holding force' [patent_app_type] => utility [patent_app_number] => 10/638281 [patent_app_country] => US [patent_app_date] => 2003-08-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 8466 [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/A1/0028/20050028986.pdf [firstpage_image] =>[orig_patent_app_number] => 10638281 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/638281
Latch-type tubing protector having C-shaped clamping members, a minimized running profile and a large holding force Aug 7, 2003 Issued
Array ( [id] => 7187121 [patent_doc_number] => 20040084223 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-05-06 [patent_title] => 'Cutting element having enhanced cutting geometry' [patent_app_type] => new [patent_app_number] => 10/636301 [patent_app_country] => US [patent_app_date] => 2003-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2910 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0084/20040084223.pdf [firstpage_image] =>[orig_patent_app_number] => 10636301 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/636301
Cutting element having enhanced cutting geometry Aug 5, 2003 Issued
Array ( [id] => 7435402 [patent_doc_number] => 20040194952 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-10-07 [patent_title] => 'Oil extraction equipment' [patent_app_type] => new [patent_app_number] => 10/635001 [patent_app_country] => US [patent_app_date] => 2003-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4111 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 280 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0194/20040194952.pdf [firstpage_image] =>[orig_patent_app_number] => 10635001 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/635001
Oil extraction equipment Aug 5, 2003 Abandoned
Array ( [id] => 7148431 [patent_doc_number] => 20050023866 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-02-03 [patent_title] => 'Non-rotational casing hanger and seal assembly running tool' [patent_app_type] => utility [patent_app_number] => 10/629973 [patent_app_country] => US [patent_app_date] => 2003-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 3495 [patent_no_of_claims] => 18 [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/A1/0023/20050023866.pdf [firstpage_image] =>[orig_patent_app_number] => 10629973 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/629973
Non-rotational casing hanger and seal assembly running tool Jul 29, 2003 Issued
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