Search

Kun Kai Ma

Examiner (ID: 17412, Phone: (571)270-3530 , Office: P/3744 )

Most Active Art Unit
3763
Art Unit(s)
3744, 3763
Total Applications
969
Issued Applications
713
Pending Applications
109
Abandoned Applications
172

Applications

Application numberTitle of the applicationFiling DateStatus
18/442760 GYROSCOPIC SURVEY INSTRUMENT AND METHOD Feb 14, 2024 Pending
Array ( [id] => 20357825 [patent_doc_number] => 12473813 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-18 [patent_title] => Detecting ringout on an expandable tool [patent_app_type] => utility [patent_app_number] => 18/414046 [patent_app_country] => US [patent_app_date] => 2024-01-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 19 [patent_no_of_words] => 13354 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18414046 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/414046
Detecting ringout on an expandable tool Jan 15, 2024 Issued
Array ( [id] => 19142879 [patent_doc_number] => 20240141732 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-02 [patent_title] => ADJUSTABLE REAMER [patent_app_type] => utility [patent_app_number] => 18/405349 [patent_app_country] => US [patent_app_date] => 2024-01-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7749 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18405349 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/405349
Adjustable reamer Jan 4, 2024 Issued
Array ( [id] => 19970112 [patent_doc_number] => 12338710 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-06-24 [patent_title] => Tubing pressure insensitive safety valve with hydrostatic compensation [patent_app_type] => utility [patent_app_number] => 18/392261 [patent_app_country] => US [patent_app_date] => 2023-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 274 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18392261 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/392261
Tubing pressure insensitive safety valve with hydrostatic compensation Dec 20, 2023 Issued
Array ( [id] => 20744460 [patent_doc_number] => 12644359 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-06-02 [patent_title] => Milling and debris collecting with multiphase vacuum pump [patent_app_type] => utility [patent_app_number] => 19/136872 [patent_app_country] => US [patent_app_date] => 2023-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19136872 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/136872
Milling and debris collecting with multiphase vacuum pump Dec 18, 2023 Issued
Array ( [id] => 19083660 [patent_doc_number] => 20240110461 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-04 [patent_title] => APPARATUS AND METHOD FOR A GAS LIFT VALVE [patent_app_type] => utility [patent_app_number] => 18/539040 [patent_app_country] => US [patent_app_date] => 2023-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15191 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 179 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18539040 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/539040
APPARATUS AND METHOD FOR A GAS LIFT VALVE Dec 12, 2023 Pending
Array ( [id] => 19746543 [patent_doc_number] => 20250035108 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => LUBRICATOR ASSEMBLY WITH FLANGE OR FLOW BLOCK MOUNTED CATCHER [patent_app_type] => utility [patent_app_number] => 18/531302 [patent_app_country] => US [patent_app_date] => 2023-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2300 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 17 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18531302 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/531302
Lubricator assembly with flange or flow block mounted catcher Dec 5, 2023 Abandoned
Array ( [id] => 19333129 [patent_doc_number] => 20240247559 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => NON-ROTATING MECHANICALLY ENHANCED AND PASSIVELY PRELOADED CONNECTION FOR OILFIELD EQUIPMENT [patent_app_type] => utility [patent_app_number] => 18/520011 [patent_app_country] => US [patent_app_date] => 2023-11-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5229 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18520011 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/520011
NON-ROTATING MECHANICALLY ENHANCED AND PASSIVELY PRELOADED CONNECTION FOR OILFIELD EQUIPMENT Nov 26, 2023 Pending
Array ( [id] => 20414563 [patent_doc_number] => 12497836 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-16 [patent_title] => Steering device, method and system [patent_app_type] => utility [patent_app_number] => 18/511370 [patent_app_country] => US [patent_app_date] => 2023-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 1180 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18511370 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/511370
Steering device, method and system Nov 15, 2023 Issued
Array ( [id] => 20008176 [patent_doc_number] => 20250146398 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-08 [patent_title] => Increasing Hydrocarbon Recovery in a Multipurpose Well [patent_app_type] => utility [patent_app_number] => 18/502794 [patent_app_country] => US [patent_app_date] => 2023-11-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18502794 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/502794
Increasing hydrocarbon recovery in a multipurpose well Nov 5, 2023 Issued
Array ( [id] => 19098462 [patent_doc_number] => 20240117690 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-11 [patent_title] => DRILLING RETURN FLOWLINE CONTINUOUS AGITATION FLOCCULANT METERING DISPENSER [patent_app_type] => utility [patent_app_number] => 18/485216 [patent_app_country] => US [patent_app_date] => 2023-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4470 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18485216 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/485216
DRILLING RETURN FLOWLINE CONTINUOUS AGITATION FLOCCULANT METERING DISPENSER Oct 10, 2023 Abandoned
Array ( [id] => 20459902 [patent_doc_number] => 20260009325 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-08 [patent_title] => PRESSURE RESPONSE TEST TO DETECT LEAKAGE OF ROTATING CONTROL DEVICE [patent_app_type] => utility [patent_app_number] => 19/117651 [patent_app_country] => US [patent_app_date] => 2023-10-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 19117651 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/117651
Pressure response test to detect leakage of rotating control device Oct 9, 2023 Issued
Array ( [id] => 19098477 [patent_doc_number] => 20240117705 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-11 [patent_title] => CEMENT PLUG AND METHODS OF USE [patent_app_type] => utility [patent_app_number] => 18/377333 [patent_app_country] => US [patent_app_date] => 2023-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8734 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18377333 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/377333
Cement plug and methods of use Oct 5, 2023 Issued
Array ( [id] => 19013532 [patent_doc_number] => 11920452 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-03-05 [patent_title] => Downhole sand separator [patent_app_type] => utility [patent_app_number] => 18/375819 [patent_app_country] => US [patent_app_date] => 2023-10-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 18 [patent_no_of_words] => 2198 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 219 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18375819 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/375819
Downhole sand separator Oct 1, 2023 Issued
Array ( [id] => 19211175 [patent_doc_number] => 12000225 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-04 [patent_title] => Coiled tubing section mill [patent_app_type] => utility [patent_app_number] => 18/477827 [patent_app_country] => US [patent_app_date] => 2023-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 17 [patent_no_of_words] => 4101 [patent_no_of_claims] => 20 [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] => 18477827 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/477827
Coiled tubing section mill Sep 28, 2023 Issued
Array ( [id] => 20144514 [patent_doc_number] => 12378846 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-05 [patent_title] => Autonomous ultraviolet light and brush apparatus for remediation and prevention of biological and chemical fouling in wells [patent_app_type] => utility [patent_app_number] => 18/476241 [patent_app_country] => US [patent_app_date] => 2023-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 14 [patent_no_of_words] => 3586 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18476241 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/476241
Autonomous ultraviolet light and brush apparatus for remediation and prevention of biological and chemical fouling in wells Sep 26, 2023 Issued
Array ( [id] => 19113461 [patent_doc_number] => 20240125211 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-18 [patent_title] => SYSTEM AND METHOD FOR REHABILITATING A WATER WELL WITH COMPRESSED NITROGEN [patent_app_type] => utility [patent_app_number] => 18/475670 [patent_app_country] => US [patent_app_date] => 2023-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2672 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18475670 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/475670
System and method for rehabilitating a water well with compressed nitrogen Sep 26, 2023 Issued
Array ( [id] => 19863061 [patent_doc_number] => 20250101847 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-27 [patent_title] => INFLOW CONTROL DEVICE [patent_app_type] => utility [patent_app_number] => 18/473545 [patent_app_country] => US [patent_app_date] => 2023-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5199 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 37 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18473545 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/473545
Inflow control device Sep 24, 2023 Issued
Array ( [id] => 20467072 [patent_doc_number] => 12523107 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-13 [patent_title] => Explosive downhole tools having improved wellbore conveyance and debris properties, methods of using the explosive downhole tools in a wellbore, and explosive units for explosive column tools [patent_app_type] => utility [patent_app_number] => 18/371908 [patent_app_country] => US [patent_app_date] => 2023-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 38 [patent_figures_cnt] => 79 [patent_no_of_words] => 25708 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18371908 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/371908
Explosive downhole tools having improved wellbore conveyance and debris properties, methods of using the explosive downhole tools in a wellbore, and explosive units for explosive column tools Sep 21, 2023 Issued
Array ( [id] => 19474362 [patent_doc_number] => 12104440 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-01 [patent_title] => Fiber optic wetmate [patent_app_type] => utility [patent_app_number] => 18/468822 [patent_app_country] => US [patent_app_date] => 2023-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 42 [patent_no_of_words] => 10229 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 245 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18468822 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/468822
Fiber optic wetmate Sep 17, 2023 Issued
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