Search

Catherine A. Loikith

Examiner (ID: 4203, Phone: (571)270-7822 , Office: P/3674 )

Most Active Art Unit
3674
Art Unit(s)
3672, 3674, 3676, 4117
Total Applications
1086
Issued Applications
911
Pending Applications
43
Abandoned Applications
145

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20600652 [patent_doc_number] => 20260078659 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-03-19 [patent_title] => SYSTEM FOR DYNAMIC OPTIMIZATION OF BACK PRESSURE ON A FLUID WELL [patent_app_type] => utility [patent_app_number] => 19/401767 [patent_app_country] => US [patent_app_date] => 2025-11-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3407 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 366 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19401767 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/401767
SYSTEM FOR DYNAMIC OPTIMIZATION OF BACK PRESSURE ON A FLUID WELL Nov 25, 2025 Issued
Array ( [id] => 20180033 [patent_doc_number] => 20250263991 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-21 [patent_title] => INTERNAL SLIP DESIGN WITH MINIMUM BACKLASH FOR PACKERS SEAL ENHANCEMENT [patent_app_type] => utility [patent_app_number] => 19/202467 [patent_app_country] => US [patent_app_date] => 2025-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1048 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -29 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19202467 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/202467
INTERNAL SLIP DESIGN WITH MINIMUM BACKLASH FOR PACKERS SEAL ENHANCEMENT May 7, 2025 Pending
Array ( [id] => 20688450 [patent_doc_number] => 12618591 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-05 [patent_title] => Systems and processes for stimulating subterranean geologic formations [patent_app_type] => utility [patent_app_number] => 19/185676 [patent_app_country] => US [patent_app_date] => 2025-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 2203 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 215 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19185676 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/185676
Systems and processes for stimulating subterranean geologic formations Apr 21, 2025 Issued
Array ( [id] => 20445700 [patent_doc_number] => 20260002417 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-01 [patent_title] => LONG-LIFE DRILL BIT WITH DOWNHOLE SELF-RENEWAL CAPABILITY [patent_app_type] => utility [patent_app_number] => 19/078972 [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] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 260 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19078972 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/078972
LONG-LIFE DRILL BIT WITH DOWNHOLE SELF-RENEWAL CAPABILITY Mar 12, 2025 Pending
Array ( [id] => 20151041 [patent_doc_number] => 20250250879 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-07 [patent_title] => Systems And Methods To Place A Thermally Conductive Sheath In A Geothermal Well [patent_app_type] => utility [patent_app_number] => 19/047474 [patent_app_country] => US [patent_app_date] => 2025-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12764 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19047474 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/047474
Systems and methods to place a thermally conductive sheath in a geothermal well Feb 5, 2025 Issued
Array ( [id] => 20646308 [patent_doc_number] => 12601246 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-04-14 [patent_title] => Method and application of acidizing fracturing in carbonate formations [patent_app_type] => utility [patent_app_number] => 18/980602 [patent_app_country] => US [patent_app_date] => 2024-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 0 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18980602 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/980602
Method and application of acidizing fracturing in carbonate formations Dec 12, 2024 Issued
Array ( [id] => 19863025 [patent_doc_number] => 20250101811 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-27 [patent_title] => TWIN BIT [patent_app_type] => utility [patent_app_number] => 18/971905 [patent_app_country] => US [patent_app_date] => 2024-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16583 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [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] => 18971905 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/971905
Twin bit Dec 5, 2024 Issued
Array ( [id] => 20772054 [patent_doc_number] => 12655717 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-06-16 [patent_title] => Production sub including a fluid flow assembly having a pair of radial burst discs [patent_app_type] => utility [patent_app_number] => 18/956487 [patent_app_country] => US [patent_app_date] => 2024-11-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 58 [patent_figures_cnt] => 58 [patent_no_of_words] => 3295 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18956487 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/956487
PRODUCTION SUB INCLUDING A FLUID FLOW ASSEMBLY HAVING A PAIR OF RADIAL BURST DISCS Nov 21, 2024 Issued
Array ( [id] => 20633726 [patent_doc_number] => 12594590 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-04-07 [patent_title] => Devices and techniques relating to landfill gas extraction [patent_app_type] => utility [patent_app_number] => 18/929312 [patent_app_country] => US [patent_app_date] => 2024-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 18 [patent_no_of_words] => 28453 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 205 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18929312 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/929312
Devices and techniques relating to landfill gas extraction Oct 27, 2024 Issued
Array ( [id] => 19684766 [patent_doc_number] => 20250003311 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-02 [patent_title] => METHOD FOR TAKING A CORE SAMPLE OF A FORMATION [patent_app_type] => utility [patent_app_number] => 18/830937 [patent_app_country] => US [patent_app_date] => 2024-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12302 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [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] => 18830937 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/830937
METHOD FOR TAKING A CORE SAMPLE OF A FORMATION Sep 10, 2024 Abandoned
Array ( [id] => 20688162 [patent_doc_number] => 12618301 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-05 [patent_title] => Joint assembly, production well manufacturing method, and gas production method [patent_app_type] => utility [patent_app_number] => 18/815889 [patent_app_country] => US [patent_app_date] => 2024-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 18 [patent_no_of_words] => 4571 [patent_no_of_claims] => 15 [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] => 18815889 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/815889
Joint assembly, production well manufacturing method, and gas production method Aug 26, 2024 Issued
Array ( [id] => 20744459 [patent_doc_number] => 12644358 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-06-02 [patent_title] => Inflow control valve hammer for overcoming scale and sticking [patent_app_type] => utility [patent_app_number] => 18/812611 [patent_app_country] => US [patent_app_date] => 2024-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 14 [patent_no_of_words] => 3636 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18812611 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/812611
Inflow control valve hammer for overcoming scale and sticking Aug 21, 2024 Issued
Array ( [id] => 19932691 [patent_doc_number] => 12305893 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-05-20 [patent_title] => Systems and processes for stimulating subterranean geologic formations [patent_app_type] => utility [patent_app_number] => 18/802048 [patent_app_country] => US [patent_app_date] => 2024-08-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 2203 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 3 [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] => 18802048 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/802048
Systems and processes for stimulating subterranean geologic formations Aug 12, 2024 Issued
Array ( [id] => 20499634 [patent_doc_number] => 20260029092 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-29 [patent_title] => METHODS AND SYSTEMS FOR SAND REMOVAL [patent_app_type] => utility [patent_app_number] => 18/784157 [patent_app_country] => US [patent_app_date] => 2024-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3307 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18784157 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/784157
METHODS AND SYSTEMS FOR SAND REMOVAL Jul 24, 2024 Pending
Array ( [id] => 19572504 [patent_doc_number] => 20240376796 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-14 [patent_title] => DOWNHOLE APPARATUS AND METHOD FOR OPERATIONS INVOLVING DELIVERY AND HARDENING OF SETTABLE MATERIALS [patent_app_type] => utility [patent_app_number] => 18/781896 [patent_app_country] => US [patent_app_date] => 2024-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14124 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [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] => 18781896 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/781896
DOWNHOLE APPARATUS AND METHOD FOR OPERATIONS INVOLVING DELIVERY AND HARDENING OF SETTABLE MATERIALS Jul 22, 2024 Pending
Array ( [id] => 19770724 [patent_doc_number] => 20250052150 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-13 [patent_title] => AUTOMATED INITIAL SHUT-IN PRESSURE ESTIMATION [patent_app_type] => utility [patent_app_number] => 18/774045 [patent_app_country] => US [patent_app_date] => 2024-07-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18491 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18774045 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/774045
AUTOMATED INITIAL SHUT-IN PRESSURE ESTIMATION Jul 15, 2024 Pending
Array ( [id] => 19763559 [patent_doc_number] => 12221843 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-02-11 [patent_title] => Automatic detection function-integrated detection apparatus and method for water flowing fractured zone [patent_app_type] => utility [patent_app_number] => 18/762783 [patent_app_country] => US [patent_app_date] => 2024-07-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 7361 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 264 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18762783 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/762783
Automatic detection function-integrated detection apparatus and method for water flowing fractured zone Jul 2, 2024 Issued
Array ( [id] => 20445702 [patent_doc_number] => 20260002419 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-01 [patent_title] => Generating downhole motor torque and RPM of a downhole motor with a drilling fluid having a compressible portion [patent_app_type] => utility [patent_app_number] => 18/760190 [patent_app_country] => US [patent_app_date] => 2024-07-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3065 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18760190 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/760190
Generating downhole motor torque and RPM of a downhole motor with a drilling fluid having a compressible portion Jun 30, 2024 Pending
Array ( [id] => 20272500 [patent_doc_number] => 12442274 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-14 [patent_title] => Well production management in sour environment at a surface equipment zone [patent_app_type] => utility [patent_app_number] => 18/675521 [patent_app_country] => US [patent_app_date] => 2024-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 2349 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [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] => 18675521 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/675521
Well production management in sour environment at a surface equipment zone May 27, 2024 Issued
Array ( [id] => 20665338 [patent_doc_number] => 12607100 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-04-21 [patent_title] => Downhole device for hydrocarbon producing wells without conventional tubing [patent_app_type] => utility [patent_app_number] => 18/662120 [patent_app_country] => US [patent_app_date] => 2024-05-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 25 [patent_no_of_words] => 4625 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [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] => 18662120 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/662120
Downhole device for hydrocarbon producing wells without conventional tubing May 12, 2024 Issued
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