Search

David L. Andrews

Examiner (ID: 6232, Phone: (571)272-6558 , Office: P/3672 )

Most Active Art Unit
3672
Art Unit(s)
3672
Total Applications
1158
Issued Applications
793
Pending Applications
94
Abandoned Applications
298

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19480220 [patent_doc_number] => 20240328262 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-03 [patent_title] => BINDERLESS OR CATALYST-FREE REVOLVING PDC CUTTER [patent_app_type] => utility [patent_app_number] => 18/194186 [patent_app_country] => US [patent_app_date] => 2023-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7754 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18194186 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/194186
BINDERLESS OR CATALYST-FREE REVOLVING PDC CUTTER Mar 30, 2023 Abandoned
Array ( [id] => 19433269 [patent_doc_number] => 20240301767 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-12 [patent_title] => Wireline Retrievable Opening Prong [patent_app_type] => utility [patent_app_number] => 18/119214 [patent_app_country] => US [patent_app_date] => 2023-03-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8434 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18119214 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/119214
Wireline retrievable opening prong Mar 7, 2023 Issued
Array ( [id] => 19381629 [patent_doc_number] => 20240271499 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => LINER-TOP PACKER SETTING ARRANGEMENT, METHOD, AND SYSTEM [patent_app_type] => utility [patent_app_number] => 18/167485 [patent_app_country] => US [patent_app_date] => 2023-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1796 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18167485 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/167485
LINER-TOP PACKER SETTING ARRANGEMENT, METHOD, AND SYSTEM Feb 9, 2023 Abandoned
Array ( [id] => 19361522 [patent_doc_number] => 20240263556 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-08 [patent_title] => UNDERGROUND RESERVOIR MONITORING SYSTEM [patent_app_type] => utility [patent_app_number] => 18/163981 [patent_app_country] => US [patent_app_date] => 2023-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10500 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18163981 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/163981
UNDERGROUND RESERVOIR MONITORING SYSTEM Feb 2, 2023 Pending
Array ( [id] => 19580272 [patent_doc_number] => 12146373 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-19 [patent_title] => Underbalanced drilling vibrating screen integrated with automatic drainage and vacuum chucks [patent_app_type] => utility [patent_app_number] => 18/161187 [patent_app_country] => US [patent_app_date] => 2023-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 3670 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 227 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18161187 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/161187
Underbalanced drilling vibrating screen integrated with automatic drainage and vacuum chucks Jan 29, 2023 Issued
Array ( [id] => 20453529 [patent_doc_number] => 12516581 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-06 [patent_title] => Coring tool, coring method, and application thereof [patent_app_type] => utility [patent_app_number] => 18/724652 [patent_app_country] => US [patent_app_date] => 2022-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 3462 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 364 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18724652 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/724652
Coring tool, coring method, and application thereof Dec 26, 2022 Issued
Array ( [id] => 18854392 [patent_doc_number] => 11851956 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-12-26 [patent_title] => Dual rod assembly and collar installation method [patent_app_type] => utility [patent_app_number] => 18/068196 [patent_app_country] => US [patent_app_date] => 2022-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 2791 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18068196 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/068196
Dual rod assembly and collar installation method Dec 18, 2022 Issued
Array ( [id] => 19801245 [patent_doc_number] => 20250067170 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-27 [patent_title] => GAS BREAKTHROUGH ANALYSIS [patent_app_type] => utility [patent_app_number] => 18/722732 [patent_app_country] => US [patent_app_date] => 2022-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5147 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18722732 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/722732
GAS BREAKTHROUGH ANALYSIS Dec 18, 2022 Pending
Array ( [id] => 19801245 [patent_doc_number] => 20250067170 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-27 [patent_title] => GAS BREAKTHROUGH ANALYSIS [patent_app_type] => utility [patent_app_number] => 18/722732 [patent_app_country] => US [patent_app_date] => 2022-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5147 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18722732 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/722732
GAS BREAKTHROUGH ANALYSIS Dec 18, 2022 Pending
Array ( [id] => 19077013 [patent_doc_number] => 11946368 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-02 [patent_title] => Determination of mud-filtrate contamination and clean formation fluid properties [patent_app_type] => utility [patent_app_number] => 18/083176 [patent_app_country] => US [patent_app_date] => 2022-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 9029 [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] => 18083176 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/083176
Determination of mud-filtrate contamination and clean formation fluid properties Dec 15, 2022 Issued
Array ( [id] => 19234429 [patent_doc_number] => 20240191622 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-13 [patent_title] => IN-SITU SWEEP TESTING SYSTEM AND METHOD FOR CONDUCTING IN-SITU OIL RECOVERY SWEEP TESTING [patent_app_type] => utility [patent_app_number] => 18/064030 [patent_app_country] => US [patent_app_date] => 2022-12-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6503 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18064030 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/064030
IN-SITU SWEEP TESTING SYSTEM AND METHOD FOR CONDUCTING IN-SITU OIL RECOVERY SWEEP TESTING Dec 8, 2022 Pending
Array ( [id] => 19738744 [patent_doc_number] => 12215568 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-04 [patent_title] => Removal and collection of wellbore scale and debris [patent_app_type] => utility [patent_app_number] => 18/077920 [patent_app_country] => US [patent_app_date] => 2022-12-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 7283 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 288 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18077920 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/077920
Removal and collection of wellbore scale and debris Dec 7, 2022 Issued
Array ( [id] => 19746400 [patent_doc_number] => 20250034965 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => HIGH EXPANSION PACKER ASSEMBLY [patent_app_type] => utility [patent_app_number] => 18/715536 [patent_app_country] => US [patent_app_date] => 2022-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3423 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18715536 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/715536
HIGH EXPANSION PACKER ASSEMBLY Dec 4, 2022 Pending
Array ( [id] => 19218531 [patent_doc_number] => 20240183235 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-06 [patent_title] => INTERNAL SLIP INCLUDING ONE OR MORE SYMMETRICAL TEETH [patent_app_type] => utility [patent_app_number] => 18/073771 [patent_app_country] => US [patent_app_date] => 2022-12-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4956 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18073771 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/073771
Internal slip including one or more symmetrical teeth Dec 1, 2022 Issued
Array ( [id] => 19755104 [patent_doc_number] => 20250043669 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-06 [patent_title] => A METHOD OF SYNGAS PRODUCTION AND A SYSTEM FOR USE IN SYNGAS PRODUCTION [patent_app_type] => utility [patent_app_number] => 18/717750 [patent_app_country] => US [patent_app_date] => 2022-12-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6107 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [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] => 18717750 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/717750
A METHOD OF SYNGAS PRODUCTION AND A SYSTEM FOR USE IN SYNGAS PRODUCTION Nov 30, 2022 Pending
Array ( [id] => 19702038 [patent_doc_number] => 12196054 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-14 [patent_title] => Seal backup and seal system [patent_app_type] => utility [patent_app_number] => 18/071962 [patent_app_country] => US [patent_app_date] => 2022-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 2514 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 319 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18071962 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/071962
Seal backup and seal system Nov 29, 2022 Issued
Array ( [id] => 18420900 [patent_doc_number] => 20230175363 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-08 [patent_title] => DOUBLE SLEEVE PLUNGER [patent_app_type] => utility [patent_app_number] => 18/072214 [patent_app_country] => US [patent_app_date] => 2022-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5063 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18072214 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/072214
DOUBLE SLEEVE PLUNGER Nov 29, 2022 Pending
Array ( [id] => 18420900 [patent_doc_number] => 20230175363 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-08 [patent_title] => DOUBLE SLEEVE PLUNGER [patent_app_type] => utility [patent_app_number] => 18/072214 [patent_app_country] => US [patent_app_date] => 2022-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5063 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18072214 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/072214
DOUBLE SLEEVE PLUNGER Nov 29, 2022 Pending
Array ( [id] => 19203450 [patent_doc_number] => 20240175349 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-30 [patent_title] => UNTETHERED DOWNHOLE TOOLS AND RELATED METHODS OF GENERATING VERTICAL SEISMIC PROFILES [patent_app_type] => utility [patent_app_number] => 18/072197 [patent_app_country] => US [patent_app_date] => 2022-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7842 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18072197 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/072197
UNTETHERED DOWNHOLE TOOLS AND RELATED METHODS OF GENERATING VERTICAL SEISMIC PROFILES Nov 29, 2022 Abandoned
Array ( [id] => 19676449 [patent_doc_number] => 12188301 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-07 [patent_title] => Drill bit cutter with shaped portion matched to kerf [patent_app_type] => utility [patent_app_number] => 17/990442 [patent_app_country] => US [patent_app_date] => 2022-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 15 [patent_no_of_words] => 6450 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 169 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17990442 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/990442
Drill bit cutter with shaped portion matched to kerf Nov 17, 2022 Issued
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