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] => 19512735 [patent_doc_number] => 20240344421 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-17 [patent_title] => Displaceable Shoe Track Assembly [patent_app_type] => utility [patent_app_number] => 18/750652 [patent_app_country] => US [patent_app_date] => 2024-06-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3463 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 250 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18750652 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/750652
Displaceable shoe track assembly Jun 20, 2024 Issued
Array ( [id] => 19644103 [patent_doc_number] => 20240418623 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-19 [patent_title] => DETERMINING ASPECT RATIO DEPENDENT PORE SIZE DISTRIBUTIONS FOR MULTIPLE PORE TYPES AND PROCESSES FOR USING SAME [patent_app_type] => utility [patent_app_number] => 18/744264 [patent_app_country] => US [patent_app_date] => 2024-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4076 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -25 [patent_words_short_claim] => 188 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18744264 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/744264
DETERMINING ASPECT RATIO DEPENDENT PORE SIZE DISTRIBUTIONS FOR MULTIPLE PORE TYPES AND PROCESSES FOR USING SAME Jun 13, 2024 Pending
Array ( [id] => 19631799 [patent_doc_number] => 20240410248 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => CEMENT PLUG AND METHODS OF USE [patent_app_type] => utility [patent_app_number] => 18/733928 [patent_app_country] => US [patent_app_date] => 2024-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6651 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18733928 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/733928
Cement plug and methods of use Jun 4, 2024 Issued
Array ( [id] => 19817739 [patent_doc_number] => 20250075946 [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] => 18/732816 [patent_app_country] => US [patent_app_date] => 2024-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19838 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [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] => 18732816 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/732816
Method of controlling tensile-splitting and hydro-shearing parameters during completion of enhanced geothermal system wells Jun 3, 2024 Issued
Array ( [id] => 20295538 [patent_doc_number] => 20250320781 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-16 [patent_title] => ROTATION ANGLE CONTROL AND BRAKING DEVICE FOR POWER HEAD OF DIRECTIONAL DRILL [patent_app_type] => utility [patent_app_number] => 18/875699 [patent_app_country] => US [patent_app_date] => 2024-05-28 [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] => -8 [patent_words_short_claim] => 677 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18875699 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/875699
Rotation angle control and braking device for power head of directional drill May 27, 2024 Issued
Array ( [id] => 19449733 [patent_doc_number] => 20240309863 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-19 [patent_title] => Hydraulic Powerhouse System For An Oil Well Pumping Unit [patent_app_type] => utility [patent_app_number] => 18/661584 [patent_app_country] => US [patent_app_date] => 2024-05-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19436 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 18661584 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/661584
Hydraulic powerhouse system for an oil well pumping unit May 10, 2024 Issued
Array ( [id] => 20350335 [patent_doc_number] => 20250347187 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-13 [patent_title] => Systems and Methods for Rigidizing a Seal [patent_app_type] => utility [patent_app_number] => 18/658757 [patent_app_country] => US [patent_app_date] => 2024-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5502 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18658757 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/658757
Systems and methods for rigidizing a seal May 7, 2024 Issued
Array ( [id] => 20433571 [patent_doc_number] => 12503932 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-23 [patent_title] => Sand screen, method, and system [patent_app_type] => utility [patent_app_number] => 18/657313 [patent_app_country] => US [patent_app_date] => 2024-05-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 41 [patent_figures_cnt] => 76 [patent_no_of_words] => 0 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 47 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18657313 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/657313
Sand screen, method, and system May 6, 2024 Issued
Array ( [id] => 20187525 [patent_doc_number] => 12398633 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-26 [patent_title] => High pressure resistant and partial discharge reduced MLE [patent_app_type] => utility [patent_app_number] => 18/652584 [patent_app_country] => US [patent_app_date] => 2024-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 0 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18652584 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/652584
High pressure resistant and partial discharge reduced MLE Apr 30, 2024 Issued
Array ( [id] => 20129659 [patent_doc_number] => 12371963 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-29 [patent_title] => Coiled tubing section mill [patent_app_type] => utility [patent_app_number] => 18/650597 [patent_app_country] => US [patent_app_date] => 2024-04-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 17 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18650597 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/650597
Coiled tubing section mill Apr 29, 2024 Issued
Array ( [id] => 19565579 [patent_doc_number] => 12140344 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-11-12 [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] => 18/644250 [patent_app_country] => US [patent_app_date] => 2024-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 33 [patent_figures_cnt] => 41 [patent_no_of_words] => 19696 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 414 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18644250 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/644250
Method of controlling tensile-splitting and hydro-shearing parameters during completion of enhanced geothermal system wells Apr 23, 2024 Issued
Array ( [id] => 19601754 [patent_doc_number] => 20240392634 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-28 [patent_title] => SELF INDEXING MULE SHOE MECHANISM [patent_app_type] => utility [patent_app_number] => 18/640915 [patent_app_country] => US [patent_app_date] => 2024-04-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2172 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [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] => 18640915 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/640915
Self indexing mule shoe mechanism Apr 18, 2024 Issued
Array ( [id] => 20672334 [patent_doc_number] => 12612838 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-04-28 [patent_title] => Selective well barrier bottom, system, and method [patent_app_type] => utility [patent_app_number] => 18/640344 [patent_app_country] => US [patent_app_date] => 2024-04-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 0 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18640344 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/640344
Selective well barrier bottom, system, and method Apr 18, 2024 Issued
Array ( [id] => 20295540 [patent_doc_number] => 20250320783 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-16 [patent_title] => SELECTABLE HOLE TRIMMER AND METHODS THEREOF [patent_app_type] => utility [patent_app_number] => 18/635841 [patent_app_country] => US [patent_app_date] => 2024-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 42477 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 18635841 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/635841
SELECTABLE HOLE TRIMMER AND METHODS THEREOF Apr 14, 2024 Abandoned
Array ( [id] => 20016621 [patent_doc_number] => 20250154843 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-15 [patent_title] => Jam release device, system, model and design method for coiled tube drilling rigs [patent_app_type] => utility [patent_app_number] => 18/623688 [patent_app_country] => US [patent_app_date] => 2024-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4468 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 241 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18623688 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/623688
Jam release device, system, model and design method for coiled tube drilling rigs Mar 31, 2024 Pending
Array ( [id] => 20241498 [patent_doc_number] => 12421807 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-23 [patent_title] => Connection assembly and method to assemble sucker rod [patent_app_type] => utility [patent_app_number] => 18/617572 [patent_app_country] => US [patent_app_date] => 2024-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 14 [patent_no_of_words] => 1202 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18617572 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/617572
Connection assembly and method to assemble sucker rod Mar 25, 2024 Issued
Array ( [id] => 20173477 [patent_doc_number] => 12392211 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-19 [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] => 18/603983 [patent_app_country] => US [patent_app_date] => 2024-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 42 [patent_figures_cnt] => 86 [patent_no_of_words] => 30629 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 5 [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] => 18603983 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/603983
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 Mar 12, 2024 Issued
Array ( [id] => 19301049 [patent_doc_number] => 20240229618 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-11 [patent_title] => DOWNHOLE PERFORATING TOOL WITH PROPELLANT CHARGE AND METHOD OF USING SAME [patent_app_type] => utility [patent_app_number] => 18/600713 [patent_app_country] => US [patent_app_date] => 2024-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15537 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18600713 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/600713
DOWNHOLE PERFORATING TOOL WITH PROPELLANT CHARGE AND METHOD OF USING SAME Mar 8, 2024 Pending
Array ( [id] => 20453534 [patent_doc_number] => 12516586 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-06 [patent_title] => Cement head flow diverter for tethered cement plug deployment [patent_app_type] => utility [patent_app_number] => 18/593500 [patent_app_country] => US [patent_app_date] => 2024-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3467 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18593500 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/593500
Cement head flow diverter for tethered cement plug deployment Feb 29, 2024 Issued
Array ( [id] => 19832962 [patent_doc_number] => 20250084748 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-13 [patent_title] => DOWNHOLE FLUID SEPARATOR IN A MULTILATERAL WELL [patent_app_type] => utility [patent_app_number] => 18/581202 [patent_app_country] => US [patent_app_date] => 2024-02-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6589 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18581202 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/581202
Downhole fluid separator in a multilateral well Feb 18, 2024 Issued
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