Search

Stella Eun Higgs

Examiner (ID: 2346, Phone: (571)270-5891 , Office: P/2179 )

Most Active Art Unit
2179
Art Unit(s)
2189, 4132, 2179, 3686, 3681, 3628
Total Applications
411
Issued Applications
148
Pending Applications
61
Abandoned Applications
207

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20459532 [patent_doc_number] => 20260008955 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-08 [patent_title] => SUBTERRANEAN FORMATIONS [patent_app_type] => utility [patent_app_number] => 19/328768 [patent_app_country] => US [patent_app_date] => 2025-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2111 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -28 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19328768 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/328768
SUBTERRANEAN FORMATIONS Sep 14, 2025 Pending
Array ( [id] => 19871434 [patent_doc_number] => 12264279 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-04-01 [patent_title] => High-temperature and high-salt resistant hyperbranched lubricant for water-based drilling fluid, and preparation and application thereof [patent_app_type] => utility [patent_app_number] => 18/914368 [patent_app_country] => US [patent_app_date] => 2024-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6987 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 324 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18914368 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/914368
High-temperature and high-salt resistant hyperbranched lubricant for water-based drilling fluid, and preparation and application thereof Oct 13, 2024 Issued
Array ( [id] => 19667685 [patent_doc_number] => 12180418 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-12-31 [patent_title] => Water-based drilling fluid formulated using MnZnFe-layered triple hydroxide and a process for scavenging hydrogen sulfide from subterranean geological formations [patent_app_type] => utility [patent_app_number] => 18/810299 [patent_app_country] => US [patent_app_date] => 2024-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 8581 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [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] => 18810299 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/810299
Water-based drilling fluid formulated using MnZnFe-layered triple hydroxide and a process for scavenging hydrogen sulfide from subterranean geological formations Aug 19, 2024 Issued
Array ( [id] => 19580000 [patent_doc_number] => 12146100 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-11-19 [patent_title] => Removing hydrogen sulfide from subterranean geological formation with a copper magnesium iron layered triple hydroxide material in a water-based drilling fluid [patent_app_type] => utility [patent_app_number] => 18/764927 [patent_app_country] => US [patent_app_date] => 2024-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 7813 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [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] => 18764927 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/764927
Removing hydrogen sulfide from subterranean geological formation with a copper magnesium iron layered triple hydroxide material in a water-based drilling fluid Jul 4, 2024 Issued
Array ( [id] => 19512281 [patent_doc_number] => 20240343967 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-17 [patent_title] => CARBON DIOXIDE SEQUESTERED CEMENT FOR WELL CEMENTING [patent_app_type] => utility [patent_app_number] => 18/751778 [patent_app_country] => US [patent_app_date] => 2024-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4582 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18751778 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/751778
CARBON DIOXIDE SEQUESTERED CEMENT FOR WELL CEMENTING Jun 23, 2024 Pending
Array ( [id] => 19877073 [patent_doc_number] => 20250109330 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-03 [patent_title] => METHOD FOR REDUCING HYDROGEN SULFIDE (H2S) CONTENT OF H2S-CONTAINING SUBTERRANEAN FORMATION [patent_app_type] => utility [patent_app_number] => 18/748665 [patent_app_country] => US [patent_app_date] => 2024-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11531 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18748665 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/748665
Method for reducing hydrogen sulfide (H2S) content of H2S-containing subterranean formation Jun 19, 2024 Issued
Array ( [id] => 19556670 [patent_doc_number] => 20240368462 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-07 [patent_title] => SUBTERRANEAN FORMATIONS [patent_app_type] => utility [patent_app_number] => 18/746626 [patent_app_country] => US [patent_app_date] => 2024-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5774 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18746626 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/746626
SUBTERRANEAN FORMATIONS Jun 17, 2024 Abandoned
Array ( [id] => 19497811 [patent_doc_number] => 20240336829 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-10 [patent_title] => ASPHALTENE INHIBITION AND/OR DISPERSION IN PETROLEUM FLUIDS [patent_app_type] => utility [patent_app_number] => 18/745575 [patent_app_country] => US [patent_app_date] => 2024-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3664 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 46 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18745575 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/745575
Asphaltene inhibition and/or dispersion in petroleum fluids Jun 16, 2024 Issued
Array ( [id] => 19910382 [patent_doc_number] => 12286583 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-04-29 [patent_title] => Polymer viscosity reducer for water-based drilling fluid and preparation method thereof [patent_app_type] => utility [patent_app_number] => 18/675876 [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] => 1013 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 220 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18675876 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/675876
Polymer viscosity reducer for water-based drilling fluid and preparation method thereof May 27, 2024 Issued
Array ( [id] => 19403866 [patent_doc_number] => 20240287377 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-29 [patent_title] => POLYMER BLENDS FOR USE IN WELLBORE APPLICATIONS [patent_app_type] => utility [patent_app_number] => 18/657276 [patent_app_country] => US [patent_app_date] => 2024-05-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4768 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18657276 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/657276
Polymer blends for use in wellbore applications May 6, 2024 Issued
Array ( [id] => 19389657 [patent_doc_number] => 20240279527 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-22 [patent_title] => SELF-DESTRUCTIVE BARITE FILTER CAKE IN WATER-BASED AND OIL-BASED DRILLING FLUIDS [patent_app_type] => utility [patent_app_number] => 18/639736 [patent_app_country] => US [patent_app_date] => 2024-04-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6018 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 18639736 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/639736
Self-destructive barite filter cake in water-based and oil-based drilling fluids Apr 17, 2024 Issued
Array ( [id] => 19403445 [patent_doc_number] => 20240286956 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-29 [patent_title] => CEMENT SLURRIES, CURED CEMENT AND METHODS OF MAKING AND USE OF THESE [patent_app_type] => utility [patent_app_number] => 18/626703 [patent_app_country] => US [patent_app_date] => 2024-04-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9653 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18626703 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/626703
Cement slurries, cured cement and methods of making and use of these Apr 3, 2024 Issued
Array ( [id] => 19432772 [patent_doc_number] => 20240301270 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-12 [patent_title] => MODIFIED BENTONITE DRILLING FLUID COMPOSITION [patent_app_type] => utility [patent_app_number] => 18/616673 [patent_app_country] => US [patent_app_date] => 2024-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13380 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18616673 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/616673
Modified bentonite drilling fluid composition Mar 25, 2024 Issued
Array ( [id] => 19432773 [patent_doc_number] => 20240301271 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-12 [patent_title] => DATE PALM RESIDUE DRILLING MUD COMPOSITION [patent_app_type] => utility [patent_app_number] => 18/616739 [patent_app_country] => US [patent_app_date] => 2024-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13380 [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] => 18616739 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/616739
Date palm residue drilling mud composition Mar 25, 2024 Issued
Array ( [id] => 19432771 [patent_doc_number] => 20240301269 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-12 [patent_title] => METHOD OF DRILLING A SUBTERRANEAN GEOLOGICAL FORMATION WITH DATE BASED DRILLING FLUID [patent_app_type] => utility [patent_app_number] => 18/616632 [patent_app_country] => US [patent_app_date] => 2024-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13376 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [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] => 18616632 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/616632
Method of drilling a subterranean geological formation with date based drilling fluid preliminary class Mar 25, 2024 Issued
Array ( [id] => 19321744 [patent_doc_number] => 20240243291 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-18 [patent_title] => VINYLIDENE FLUORIDE COPOLYMER COMPOSITION AND METHOD FOR PRODUCING SAME, POLYMER DISPERSION SOLUTION, ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, ELECTROLYTE LAYER FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY [patent_app_type] => utility [patent_app_number] => 18/615055 [patent_app_country] => US [patent_app_date] => 2024-03-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18726 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 203 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18615055 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/615055
VINYLIDENE FLUORIDE COPOLYMER COMPOSITION AND METHOD FOR PRODUCING SAME, POLYMER DISPERSION SOLUTION, ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, ELECTROLYTE LAYER FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY Mar 24, 2024 Pending
Array ( [id] => 19701658 [patent_doc_number] => 12195670 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-01-14 [patent_title] => Mussel biomimetic heat-resistant and salt-tolerant thickener, preparation method therefor, and gel fracturing fluid, preparation method and use thereof [patent_app_type] => utility [patent_app_number] => 18/590758 [patent_app_country] => US [patent_app_date] => 2024-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 10557 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [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] => 18590758 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/590758
Mussel biomimetic heat-resistant and salt-tolerant thickener, preparation method therefor, and gel fracturing fluid, preparation method and use thereof Feb 27, 2024 Issued
Array ( [id] => 19218069 [patent_doc_number] => 20240182773 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-06 [patent_title] => POROUS POLYURETHANE FOR CONSOLIDATION OF MATERIAL IN SUBTERRANEAN FORMATIONS [patent_app_type] => utility [patent_app_number] => 18/441628 [patent_app_country] => US [patent_app_date] => 2024-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3415 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18441628 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/441628
POROUS POLYURETHANE FOR CONSOLIDATION OF MATERIAL IN SUBTERRANEAN FORMATIONS Feb 13, 2024 Pending
Array ( [id] => 19332651 [patent_doc_number] => 20240247081 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIONS AND PRODUCTS PRODUCED THEREFROM [patent_app_type] => utility [patent_app_number] => 18/437450 [patent_app_country] => US [patent_app_date] => 2024-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14856 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 52 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18437450 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/437450
PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIONS AND PRODUCTS PRODUCED THEREFROM Feb 8, 2024 Abandoned
Array ( [id] => 19332438 [patent_doc_number] => 20240246868 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => PROPPANT PARTICLES FORMED FROM SLURRY DROPLETS AND METHODS OF USE [patent_app_type] => utility [patent_app_number] => 18/437971 [patent_app_country] => US [patent_app_date] => 2024-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10275 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 46 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18437971 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/437971
Proppant particles formed from slurry droplets and methods of use Feb 8, 2024 Issued
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