Search

Catherine A. Loikith

Examiner (ID: 149, Phone: (571)270-7822 , Office: P/3674 )

Most Active Art Unit
3674
Art Unit(s)
4117, 3674, 3672, 3676
Total Applications
1069
Issued Applications
897
Pending Applications
49
Abandoned Applications
143

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17913934 [patent_doc_number] => 20220316329 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-06 [patent_title] => Identifying Asphaltene Precipitation And Aggregation With A Formation Testing And Sampling Tool [patent_app_type] => utility [patent_app_number] => 17/589336 [patent_app_country] => US [patent_app_date] => 2022-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7644 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17589336 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/589336
Identifying asphaltene precipitation and aggregation with a formation testing and sampling tool Jan 30, 2022 Issued
Array ( [id] => 18538136 [patent_doc_number] => 20230243239 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-03 [patent_title] => DETERMINING EFFICIENCIES OF WELLBORE PRESSURE CONTROL VALVES [patent_app_type] => utility [patent_app_number] => 17/589404 [patent_app_country] => US [patent_app_date] => 2022-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5850 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17589404 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/589404
Determining efficiencies of wellbore pressure control valves Jan 30, 2022 Issued
Array ( [id] => 17750258 [patent_doc_number] => 20220228463 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-21 [patent_title] => REMOVABLE NOZZLE FOR A DOWNHOLE VALVE [patent_app_type] => utility [patent_app_number] => 17/579418 [patent_app_country] => US [patent_app_date] => 2022-01-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3526 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17579418 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/579418
Removable nozzle for a downhole valve Jan 18, 2022 Issued
Array ( [id] => 19227185 [patent_doc_number] => 12006819 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-11 [patent_title] => Hydraulic integrity analysis [patent_app_type] => utility [patent_app_number] => 17/577848 [patent_app_country] => US [patent_app_date] => 2022-01-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 25 [patent_no_of_words] => 8944 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 451 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17577848 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/577848
Hydraulic integrity analysis Jan 17, 2022 Issued
Array ( [id] => 17579504 [patent_doc_number] => 20220136359 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-05 [patent_title] => Flapper on Frac Plug That Allows Pumping Down a New Plug [patent_app_type] => utility [patent_app_number] => 17/573851 [patent_app_country] => US [patent_app_date] => 2022-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 22837 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17573851 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/573851
Flapper on Frac Plug That Allows Pumping Down a New Plug Jan 11, 2022 Abandoned
Array ( [id] => 18498062 [patent_doc_number] => 20230220763 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-13 [patent_title] => EVALUATING ANNULAR MATERIAL IN A WELLBORE USING TRANSIENT THERMAL RESPONSE DATA [patent_app_type] => utility [patent_app_number] => 17/573236 [patent_app_country] => US [patent_app_date] => 2022-01-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5710 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17573236 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/573236
Evaluating annular material in a wellbore using transient thermal response data Jan 10, 2022 Issued
Array ( [id] => 18469647 [patent_doc_number] => 20230203931 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-29 [patent_title] => TECHNIQUES FOR CALIBRATING BOREHOLE PROPAGATION MODEL FOR DIRECTION DRILLING IN REAL TIME [patent_app_type] => utility [patent_app_number] => 17/564578 [patent_app_country] => US [patent_app_date] => 2021-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8894 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17564578 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/564578
Techniques for calibrating borehole propagation model for direction drilling in real time Dec 28, 2021 Issued
Array ( [id] => 19505432 [patent_doc_number] => 12116845 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-15 [patent_title] => Devices, systems, and methods for expandable block sets [patent_app_type] => utility [patent_app_number] => 18/259650 [patent_app_country] => US [patent_app_date] => 2021-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 20 [patent_no_of_words] => 12496 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18259650 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/259650
Devices, systems, and methods for expandable block sets Dec 27, 2021 Issued
Array ( [id] => 18452427 [patent_doc_number] => 20230193706 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-22 [patent_title] => DEVICE, SYSTEM, AND MESEALANT ACROSS HIGHLY FRACTURED FORMATIONS DURING DRILLING OF OIL AND GAS WELLS [patent_app_type] => utility [patent_app_number] => 17/644668 [patent_app_country] => US [patent_app_date] => 2021-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6641 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17644668 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/644668
Device, system, and method for applying a rapidly solidifying sealant across highly fractured formations during drilling of oil and gas wells Dec 15, 2021 Issued
Array ( [id] => 19044044 [patent_doc_number] => 11933136 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-19 [patent_title] => Dissolvable balls for activation and deactivation of a circulating sub apparatus [patent_app_type] => utility [patent_app_number] => 17/539609 [patent_app_country] => US [patent_app_date] => 2021-12-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 16 [patent_no_of_words] => 4708 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17539609 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/539609
Dissolvable balls for activation and deactivation of a circulating sub apparatus Nov 30, 2021 Issued
Array ( [id] => 18392045 [patent_doc_number] => 20230160264 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-25 [patent_title] => METHOD AND SYSTEM FOR CONNECTING FORMATION FRACTURES USING FRACBOTS [patent_app_type] => utility [patent_app_number] => 17/456067 [patent_app_country] => US [patent_app_date] => 2021-11-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3207 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 17456067 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/456067
Method and system for connecting formation fractures using fracbots Nov 21, 2021 Issued
Array ( [id] => 18838108 [patent_doc_number] => 11846172 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-12-19 [patent_title] => Method for well re-stimulation with hydraulic fracture treatments [patent_app_type] => utility [patent_app_number] => 17/530964 [patent_app_country] => US [patent_app_date] => 2021-11-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 8119 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17530964 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/530964
Method for well re-stimulation with hydraulic fracture treatments Nov 18, 2021 Issued
Array ( [id] => 18392068 [patent_doc_number] => 20230160287 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-25 [patent_title] => NON-COMINGLED CONCENTRIC TUBING PRODUCTION FROM TWO DIFFERENT RESERVOIRS [patent_app_type] => utility [patent_app_number] => 17/455756 [patent_app_country] => US [patent_app_date] => 2021-11-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3568 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 17455756 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/455756
Non-comingled concentric tubing production from two different reservoirs Nov 18, 2021 Issued
Array ( [id] => 19044070 [patent_doc_number] => 11933162 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-19 [patent_title] => Calibrating erosional sand prediction [patent_app_type] => utility [patent_app_number] => 17/529692 [patent_app_country] => US [patent_app_date] => 2021-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 6545 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17529692 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/529692
Calibrating erosional sand prediction Nov 17, 2021 Issued
Array ( [id] => 19044072 [patent_doc_number] => 11933164 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-19 [patent_title] => Fluid particulate concentrator for enhanced sensing in a wellbore fluid [patent_app_type] => utility [patent_app_number] => 17/526822 [patent_app_country] => US [patent_app_date] => 2021-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 13707 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17526822 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/526822
Fluid particulate concentrator for enhanced sensing in a wellbore fluid Nov 14, 2021 Issued
Array ( [id] => 18733511 [patent_doc_number] => 11802234 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-10-31 [patent_title] => Stimulation of wells in nano-darcy shale formations [patent_app_type] => utility [patent_app_number] => 17/526802 [patent_app_country] => US [patent_app_date] => 2021-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 8665 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17526802 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/526802
Stimulation of wells in nano-darcy shale formations Nov 14, 2021 Issued
Array ( [id] => 18854408 [patent_doc_number] => 11851972 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-12-26 [patent_title] => Bi-directional wellhead annulus packoff with integral seal and hanger lockdown ring [patent_app_type] => utility [patent_app_number] => 17/523699 [patent_app_country] => US [patent_app_date] => 2021-11-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 17 [patent_no_of_words] => 9206 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17523699 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/523699
Bi-directional wellhead annulus packoff with integral seal and hanger lockdown ring Nov 9, 2021 Issued
Array ( [id] => 18335041 [patent_doc_number] => 20230126989 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-27 [patent_title] => SYSTEM AND METHOD FOR USE OF A SELF-AUTOMATED ADJUSTED CHOKE VALVE [patent_app_type] => utility [patent_app_number] => 17/451757 [patent_app_country] => US [patent_app_date] => 2021-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7326 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17451757 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/451757
System and method for use of a self-automated adjusted choke valve Oct 20, 2021 Issued
Array ( [id] => 19932313 [patent_doc_number] => 12305512 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-20 [patent_title] => Short-radius trajectory-controllable drilling tool and combined type steerable drilling tool [patent_app_type] => utility [patent_app_number] => 18/020885 [patent_app_country] => US [patent_app_date] => 2021-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 7068 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18020885 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/020885
Short-radius trajectory-controllable drilling tool and combined type steerable drilling tool Oct 10, 2021 Issued
Array ( [id] => 18478687 [patent_doc_number] => 11692420 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-07-04 [patent_title] => Systems and methods for multi-stage fracturing [patent_app_type] => utility [patent_app_number] => 17/496717 [patent_app_country] => US [patent_app_date] => 2021-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 34 [patent_no_of_words] => 13349 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17496717 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/496717
Systems and methods for multi-stage fracturing Oct 6, 2021 Issued
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