Search

Dong Hui Liang

Examiner (ID: 8577, Phone: (571)272-0487 , Office: P/2693 )

Most Active Art Unit
2693
Art Unit(s)
2629, 2693
Total Applications
591
Issued Applications
457
Pending Applications
47
Abandoned Applications
94

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19127934 [patent_doc_number] => 20240133287 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-25 [patent_title] => DEVICES, SYSTEMS, AND METHODS FOR MITIGATING DOWNHOLE MOTOR DYSFUNCTION [patent_app_type] => utility [patent_app_number] => 18/487304 [patent_app_country] => US [patent_app_date] => 2023-10-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7504 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18487304 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/487304
Devices, systems, and methods for mitigating downhole motor dysfunction Oct 15, 2023 Issued
Array ( [id] => 20467065 [patent_doc_number] => 12523100 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-13 [patent_title] => BHA with electric directional drilling motor [patent_app_type] => utility [patent_app_number] => 18/470145 [patent_app_country] => US [patent_app_date] => 2023-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 985 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18470145 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/470145
BHA with electric directional drilling motor Sep 18, 2023 Issued
Array ( [id] => 20173464 [patent_doc_number] => 12392198 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-19 [patent_title] => Self-contained compact rotary steerable system [patent_app_type] => utility [patent_app_number] => 18/463795 [patent_app_country] => US [patent_app_date] => 2023-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 51 [patent_no_of_words] => 5271 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 211 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18463795 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/463795
Self-contained compact rotary steerable system Sep 7, 2023 Issued
Array ( [id] => 20264591 [patent_doc_number] => 12435570 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-07 [patent_title] => Directional drilling framework [patent_app_type] => utility [patent_app_number] => 18/451288 [patent_app_country] => US [patent_app_date] => 2023-08-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 18 [patent_no_of_words] => 21914 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 369 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18451288 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/451288
Directional drilling framework Aug 16, 2023 Issued
Array ( [id] => 19786200 [patent_doc_number] => 20250059879 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-20 [patent_title] => Duty Cycle Estimation From Bending Moment Magnitude [patent_app_type] => utility [patent_app_number] => 18/233767 [patent_app_country] => US [patent_app_date] => 2023-08-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10010 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18233767 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/233767
Duty Cycle Estimation From Bending Moment Magnitude Aug 13, 2023 Pending
Array ( [id] => 19676497 [patent_doc_number] => 12188349 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-01-07 [patent_title] => System and method for integrated leak detection and isolation [patent_app_type] => utility [patent_app_number] => 18/447096 [patent_app_country] => US [patent_app_date] => 2023-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 5925 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18447096 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/447096
System and method for integrated leak detection and isolation Aug 8, 2023 Issued
Array ( [id] => 19755093 [patent_doc_number] => 20250043658 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-06 [patent_title] => WIRELINE SUBSURFACE SAFETY VALVE SYSTEMS, SUBSURFACE SAFETY VALVE TOOLS, AND METHODS OF LOCKING SUBSURFACE SAFETY VALVES [patent_app_type] => utility [patent_app_number] => 18/365422 [patent_app_country] => US [patent_app_date] => 2023-08-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5257 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18365422 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/365422
WIRELINE SUBSURFACE SAFETY VALVE SYSTEMS, SUBSURFACE SAFETY VALVE TOOLS, AND METHODS OF LOCKING SUBSURFACE SAFETY VALVES Aug 3, 2023 Pending
Array ( [id] => 19940787 [patent_doc_number] => 12312910 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-27 [patent_title] => Full bore electric flow control valve system [patent_app_type] => utility [patent_app_number] => 18/360172 [patent_app_country] => US [patent_app_date] => 2023-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 23 [patent_no_of_words] => 1048 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18360172 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/360172
Full bore electric flow control valve system Jul 26, 2023 Issued
Array ( [id] => 19746395 [patent_doc_number] => 20250034960 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => METHOD AND SYSTEM FOR SUSPENDING A DRILL STRING AND ISOLATING A WELLBORE [patent_app_type] => utility [patent_app_number] => 18/359638 [patent_app_country] => US [patent_app_date] => 2023-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9251 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18359638 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/359638
Method and system for suspending a drill string and isolating a wellbore Jul 25, 2023 Issued
Array ( [id] => 18923744 [patent_doc_number] => 20240026748 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-25 [patent_title] => HYBRID DISSOLVABLE PLUG WITH IMPROVED DRILLABILITY [patent_app_type] => utility [patent_app_number] => 18/224966 [patent_app_country] => US [patent_app_date] => 2023-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6665 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18224966 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/224966
Hybrid dissolvable plug with improved drillability Jul 20, 2023 Issued
Array ( [id] => 18923736 [patent_doc_number] => 20240026740 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-25 [patent_title] => BIT INSERT FOR A DRILL BIT [patent_app_type] => utility [patent_app_number] => 18/356513 [patent_app_country] => US [patent_app_date] => 2023-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8236 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18356513 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/356513
Bit insert for a drill bit Jul 20, 2023 Issued
Array ( [id] => 19083655 [patent_doc_number] => 20240110456 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-04 [patent_title] => NON-SEALING CASING SHEAR RAMS [patent_app_type] => utility [patent_app_number] => 18/351691 [patent_app_country] => US [patent_app_date] => 2023-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3891 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18351691 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/351691
NON-SEALING CASING SHEAR RAMS Jul 12, 2023 Pending
Array ( [id] => 18903371 [patent_doc_number] => 20240018856 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-18 [patent_title] => METHODOLOGY FOR DESIGN AND OPERATIONS OF FIELD-WIDE AND MULTI-WELL ENHANCED OIL RECOVERY OF UNCONVENTIONAL HYDROCARBON ASSETS [patent_app_type] => utility [patent_app_number] => 18/348798 [patent_app_country] => US [patent_app_date] => 2023-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 33721 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18348798 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/348798
METHODOLOGY FOR DESIGN AND OPERATIONS OF FIELD-WIDE AND MULTI-WELL ENHANCED OIL RECOVERY OF UNCONVENTIONAL HYDROCARBON ASSETS Jul 6, 2023 Pending
Array ( [id] => 18895881 [patent_doc_number] => 20240011366 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-11 [patent_title] => COIL SHIFTABLE PACKER [patent_app_type] => utility [patent_app_number] => 18/347873 [patent_app_country] => US [patent_app_date] => 2023-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3611 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18347873 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/347873
Coil shiftable packer Jul 5, 2023 Issued
Array ( [id] => 18726588 [patent_doc_number] => 20230340869 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-26 [patent_title] => DRILL PLANNING TOOL FOR TOPOGRAPHY CHARACTERIZATION, SYSTEM AND ASSOCIATED METHODS [patent_app_type] => utility [patent_app_number] => 18/215127 [patent_app_country] => US [patent_app_date] => 2023-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 24797 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18215127 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/215127
Drill planning tool for topography characterization, system and associated methods Jun 26, 2023 Issued
Array ( [id] => 20144498 [patent_doc_number] => 12378830 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-05 [patent_title] => Mudline suspension system running tool with tilted circulation ports [patent_app_type] => utility [patent_app_number] => 18/329488 [patent_app_country] => US [patent_app_date] => 2023-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 16 [patent_no_of_words] => 0 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18329488 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/329488
Mudline suspension system running tool with tilted circulation ports Jun 4, 2023 Issued
Array ( [id] => 19615777 [patent_doc_number] => 20240401457 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-05 [patent_title] => SYSTEM AND METHOD FOR PROACTIVE GEOSTEERING TO IMPROVE WELL PLACEMENT [patent_app_type] => utility [patent_app_number] => 18/327992 [patent_app_country] => US [patent_app_date] => 2023-06-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7715 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18327992 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/327992
SYSTEM AND METHOD FOR PROACTIVE GEOSTEERING TO IMPROVE WELL PLACEMENT Jun 1, 2023 Abandoned
Array ( [id] => 19601767 [patent_doc_number] => 20240392647 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-28 [patent_title] => SEAL, METHOD AND SYSTEM [patent_app_type] => utility [patent_app_number] => 18/321944 [patent_app_country] => US [patent_app_date] => 2023-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2125 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 31 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18321944 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/321944
SEAL, METHOD AND SYSTEM May 22, 2023 Pending
Array ( [id] => 20144536 [patent_doc_number] => 12378868 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-05 [patent_title] => Closed-loop automation of well operations [patent_app_type] => utility [patent_app_number] => 18/321638 [patent_app_country] => US [patent_app_date] => 2023-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 9056 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 613 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18321638 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/321638
Closed-loop automation of well operations May 21, 2023 Issued
Array ( [id] => 18771485 [patent_doc_number] => 20230366306 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-16 [patent_title] => DOWNHOLE SEPARATOR [patent_app_type] => utility [patent_app_number] => 18/318257 [patent_app_country] => US [patent_app_date] => 2023-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7314 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18318257 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/318257
DOWNHOLE SEPARATOR May 15, 2023 Pending
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