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
Array ( [id] => 20295551 [patent_doc_number] => 20250320794 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-16 [patent_title] => Electro-Hydraulic Tubing Punch [patent_app_type] => utility [patent_app_number] => 19/094520 [patent_app_country] => US [patent_app_date] => 2025-03-28 [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] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19094520 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/094520
Electro-Hydraulic Tubing Punch Mar 27, 2025 Abandoned
Array ( [id] => 20715847 [patent_doc_number] => 12631088 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-19 [patent_title] => Back pressure valve for carbon capture systems [patent_app_type] => utility [patent_app_number] => 19/081112 [patent_app_country] => US [patent_app_date] => 2025-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 2007 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19081112 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/081112
Back pressure valve for carbon capture systems Mar 16, 2025 Issued
Array ( [id] => 20248661 [patent_doc_number] => 20250297530 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-25 [patent_title] => Deep-Set Insert Valve Using Magnetic Coupling [patent_app_type] => utility [patent_app_number] => 19/079242 [patent_app_country] => US [patent_app_date] => 2025-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4774 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19079242 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/079242
Deep-Set Insert Valve Using Magnetic Coupling Mar 12, 2025 Pending
Array ( [id] => 20050588 [patent_doc_number] => 20250188810 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-12 [patent_title] => DOWNHOLE SYSTEM FOR CONVEYING AN EXPLOSIVE TOOL WITHIN A WELLBORE AND REDUCING DAMAGE TO OTHER TOOLS OF THE DOWNHOLE SYSTEM [patent_app_type] => utility [patent_app_number] => 19/053174 [patent_app_country] => US [patent_app_date] => 2025-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 38116 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19053174 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/053174
DOWNHOLE SYSTEM FOR CONVEYING AN EXPLOSIVE TOOL WITHIN A WELLBORE AND REDUCING DAMAGE TO OTHER TOOLS OF THE DOWNHOLE SYSTEM Feb 12, 2025 Pending
Array ( [id] => 20555885 [patent_doc_number] => 20260055665 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-26 [patent_title] => PILOTING PULSED POWER DRILLING USING A MULTI-ACTUATOR BASED FLOATING ELECTRODE [patent_app_type] => utility [patent_app_number] => 19/046255 [patent_app_country] => US [patent_app_date] => 2025-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8288 [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] => 19046255 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/046255
Piloting pulsed power drilling using a multi-actuator based floating electrode Feb 4, 2025 Issued
Array ( [id] => 20136681 [patent_doc_number] => 20250243725 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-31 [patent_title] => Wellhead Attachment Device [patent_app_type] => utility [patent_app_number] => 19/018586 [patent_app_country] => US [patent_app_date] => 2025-01-13 [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] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19018586 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/018586
Wellhead Attachment Device Jan 12, 2025 Pending
Array ( [id] => 19969487 [patent_doc_number] => 12338077 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-06-24 [patent_title] => Multipurpose conveyor system [patent_app_type] => utility [patent_app_number] => 18/961299 [patent_app_country] => US [patent_app_date] => 2024-11-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 0 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18961299 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/961299
Multipurpose conveyor system Nov 25, 2024 Issued
Array ( [id] => 20025545 [patent_doc_number] => 20250163767 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-22 [patent_title] => PISTON-DIAPHRAGM PUMP FOR DRILLING OPERATIONS [patent_app_type] => utility [patent_app_number] => 18/949812 [patent_app_country] => US [patent_app_date] => 2024-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16589 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 21 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18949812 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/949812
PISTON-DIAPHRAGM PUMP FOR DRILLING OPERATIONS Nov 14, 2024 Pending
Array ( [id] => 20772036 [patent_doc_number] => 12655699 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-06-16 [patent_title] => Dissolvable lock [patent_app_type] => utility [patent_app_number] => 18/922148 [patent_app_country] => US [patent_app_date] => 2024-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 0 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18922148 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/922148
Dissolvable lock Oct 20, 2024 Issued
Array ( [id] => 19817386 [patent_doc_number] => 20250075593 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-06 [patent_title] => Method of Controlling Tensile-Splitting and Hydro-Shearing Parameters During Completion of Enhanced Geothermal System Wells [patent_app_type] => utility [patent_app_number] => 18/818873 [patent_app_country] => US [patent_app_date] => 2024-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 30529 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18818873 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/818873
Method of controlling tensile-splitting and hydro-shearing parameters during completion of enhanced geothermal system wells Aug 28, 2024 Issued
Array ( [id] => 20453538 [patent_doc_number] => 12516590 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-06 [patent_title] => Downhole cleaning tool and method [patent_app_type] => utility [patent_app_number] => 18/819912 [patent_app_country] => US [patent_app_date] => 2024-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 19 [patent_no_of_words] => 4722 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18819912 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/819912
Downhole cleaning tool and method Aug 28, 2024 Issued
Array ( [id] => 20527741 [patent_doc_number] => 12546169 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-10 [patent_title] => Directional drilling target steering apparatus and method [patent_app_type] => utility [patent_app_number] => 18/816470 [patent_app_country] => US [patent_app_date] => 2024-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 12 [patent_no_of_words] => 3688 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 198 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18816470 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/816470
Directional drilling target steering apparatus and method Aug 26, 2024 Issued
Array ( [id] => 20078104 [patent_doc_number] => 12352160 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-08 [patent_title] => Method of controlling tensile-splitting and hydro-shearing parameters during completion of enhanced geothermal system wells [patent_app_type] => utility [patent_app_number] => 18/804291 [patent_app_country] => US [patent_app_date] => 2024-08-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 40 [patent_figures_cnt] => 52 [patent_no_of_words] => 21096 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 284 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18804291 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/804291
Method of controlling tensile-splitting and hydro-shearing parameters during completion of enhanced geothermal system wells Aug 13, 2024 Issued
Array ( [id] => 19923465 [patent_doc_number] => 12297737 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-05-13 [patent_title] => Bottom hole assembly having three-point contact for improved steering [patent_app_type] => utility [patent_app_number] => 18/796416 [patent_app_country] => US [patent_app_date] => 2024-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 4857 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18796416 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/796416
Bottom hole assembly having three-point contact for improved steering Aug 6, 2024 Issued
Array ( [id] => 19746390 [patent_doc_number] => 20250034955 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => DOWN-THE-HOLE HAMMER HAVING AN INVERTED CASING [patent_app_type] => utility [patent_app_number] => 18/785640 [patent_app_country] => US [patent_app_date] => 2024-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3359 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 29 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18785640 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/785640
Down-the-hole hammer having an inverted casing Jul 25, 2024 Issued
Array ( [id] => 20730671 [patent_doc_number] => 12637921 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-26 [patent_title] => Wellbore beam spring travel limiter [patent_app_type] => utility [patent_app_number] => 18/786138 [patent_app_country] => US [patent_app_date] => 2024-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 2378 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 42 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18786138 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/786138
Wellbore beam spring travel limiter Jul 25, 2024 Issued
Array ( [id] => 19746386 [patent_doc_number] => 20250034951 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => CHAMFERED SINKER BAR CONNECTION [patent_app_type] => utility [patent_app_number] => 18/778355 [patent_app_country] => US [patent_app_date] => 2024-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3776 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18778355 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/778355
Chamfered sinker bar connection Jul 18, 2024 Issued
Array ( [id] => 20473717 [patent_doc_number] => 20260015936 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-15 [patent_title] => CONTROLLING LOGGING TOOL ORIENTATION IN A WELLBORE [patent_app_type] => utility [patent_app_number] => 18/769886 [patent_app_country] => US [patent_app_date] => 2024-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1158 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [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] => 18769886 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/769886
Controlling logging tool orientation in a wellbore Jul 10, 2024 Issued
Array ( [id] => 19528905 [patent_doc_number] => 20240352807 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-24 [patent_title] => Rod section of a ground drilling rod, drive element, rod section system, and ground drilling device [patent_app_type] => utility [patent_app_number] => 18/763084 [patent_app_country] => US [patent_app_date] => 2024-07-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6644 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18763084 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/763084
Rod section of a ground drilling rod, drive element, rod section system, and ground drilling device Jul 2, 2024 Abandoned
Array ( [id] => 19810280 [patent_doc_number] => 12241661 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-03-04 [patent_title] => Method of controlling tensile-splitting and hydro-shearing parameters during completion of enhanced geothermal system wells [patent_app_type] => utility [patent_app_number] => 18/756391 [patent_app_country] => US [patent_app_date] => 2024-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 33 [patent_figures_cnt] => 41 [patent_no_of_words] => 19739 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 266 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18756391 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/756391
Method of controlling tensile-splitting and hydro-shearing parameters during completion of enhanced geothermal system wells Jun 26, 2024 Issued
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