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] => 17460997 [patent_doc_number] => 20220074302 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-10 [patent_title] => FLUID SATURATED FORMATION CORE SAMPLING TOOL [patent_app_type] => utility [patent_app_number] => 17/529752 [patent_app_country] => US [patent_app_date] => 2021-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13887 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17529752 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/529752
FLUID SATURATED FORMATION CORE SAMPLING TOOL Nov 17, 2021 Abandoned
Array ( [id] => 18247137 [patent_doc_number] => 11603713 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-03-14 [patent_title] => Hardened groove for inductive channel [patent_app_type] => utility [patent_app_number] => 17/528431 [patent_app_country] => US [patent_app_date] => 2021-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 16 [patent_no_of_words] => 10477 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17528431 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/528431
Hardened groove for inductive channel Nov 16, 2021 Issued
Array ( [id] => 18359326 [patent_doc_number] => 20230140917 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-11 [patent_title] => POLYMER NANO-CLAYS AS MULTIFUNCTIONAL MUD LOGGING BARCODE TRACERS [patent_app_type] => utility [patent_app_number] => 17/454539 [patent_app_country] => US [patent_app_date] => 2021-11-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8753 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17454539 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/454539
Polymer nano-clays as multifunctional mud logging barcode tracers Nov 10, 2021 Issued
Array ( [id] => 18363152 [patent_doc_number] => 20230144743 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-11 [patent_title] => Correction for Cuttings Lag [patent_app_type] => utility [patent_app_number] => 17/519999 [patent_app_country] => US [patent_app_date] => 2021-11-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5024 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17519999 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/519999
Correction for cuttings lag Nov 4, 2021 Issued
Array ( [id] => 18636679 [patent_doc_number] => 11761268 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-09-19 [patent_title] => Wellhead penetrator for electrical connections [patent_app_type] => utility [patent_app_number] => 17/495414 [patent_app_country] => US [patent_app_date] => 2021-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 15 [patent_no_of_words] => 6886 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17495414 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/495414
Wellhead penetrator for electrical connections Oct 5, 2021 Issued
Array ( [id] => 18605185 [patent_doc_number] => 11746641 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-09-05 [patent_title] => Methods to improve fluid flow of a multi-phase mixture, methods to separate fluids of a multiphase mixture, and multi-phase fluid mixture systems [patent_app_type] => utility [patent_app_number] => 17/489232 [patent_app_country] => US [patent_app_date] => 2021-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 8259 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17489232 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/489232
Methods to improve fluid flow of a multi-phase mixture, methods to separate fluids of a multiphase mixture, and multi-phase fluid mixture systems Sep 28, 2021 Issued
Array ( [id] => 18284859 [patent_doc_number] => 20230100331 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-30 [patent_title] => BALLOON-EQUIPPED AUTONOMOUS DOWNHOLE LOGGING TOOL FOR OIL AND GAS WELLS [patent_app_type] => utility [patent_app_number] => 17/488936 [patent_app_country] => US [patent_app_date] => 2021-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7083 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17488936 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/488936
Balloon-equipped autonomous downhole logging tool for oil and gas wells Sep 28, 2021 Issued
Array ( [id] => 17315226 [patent_doc_number] => 20210404274 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-30 [patent_title] => SYSTEMS AND METHODS FOR DETECTING KICK AND WELL FLOW [patent_app_type] => utility [patent_app_number] => 17/447460 [patent_app_country] => US [patent_app_date] => 2021-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6365 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 17447460 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/447460
SYSTEMS AND METHODS FOR DETECTING KICK AND WELL FLOW Sep 12, 2021 Abandoned
Array ( [id] => 18505096 [patent_doc_number] => 11702901 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-07-18 [patent_title] => Top pot assembly [patent_app_type] => utility [patent_app_number] => 17/473970 [patent_app_country] => US [patent_app_date] => 2021-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 20 [patent_no_of_words] => 6444 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 234 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17473970 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/473970
Top pot assembly Sep 12, 2021 Issued
Array ( [id] => 18216944 [patent_doc_number] => 11591870 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-02-28 [patent_title] => Methods and apparatuses for gaining reentry below abandoned packers [patent_app_type] => utility [patent_app_number] => 17/464976 [patent_app_country] => US [patent_app_date] => 2021-09-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3687 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 223 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17464976 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/464976
Methods and apparatuses for gaining reentry below abandoned packers Sep 1, 2021 Issued
Array ( [id] => 18666775 [patent_doc_number] => 11773657 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-10-03 [patent_title] => Cable connectors for use downhole [patent_app_type] => utility [patent_app_number] => 17/407952 [patent_app_country] => US [patent_app_date] => 2021-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4877 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [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] => 17407952 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/407952
Cable connectors for use downhole Aug 19, 2021 Issued
Array ( [id] => 19381642 [patent_doc_number] => 20240271512 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => DOWNHOLE ELECTRIC STEAM GENERATOR WITH HEATING ELEMENTS [patent_app_type] => utility [patent_app_number] => 18/021837 [patent_app_country] => US [patent_app_date] => 2021-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 979 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18021837 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/021837
DOWNHOLE ELECTRIC STEAM GENERATOR WITH HEATING ELEMENTS Aug 11, 2021 Abandoned
Array ( [id] => 17244082 [patent_doc_number] => 20210363825 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-25 [patent_title] => Sealing System For Downhole Tool [patent_app_type] => utility [patent_app_number] => 17/397110 [patent_app_country] => US [patent_app_date] => 2021-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3911 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17397110 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/397110
Sealing system for downhole tool Aug 8, 2021 Issued
Array ( [id] => 17259296 [patent_doc_number] => 20210372281 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-02 [patent_title] => DETERMINATION OF MUD-FILTRATE CONTAMINATION AND CLEAN FORMATION FLUID PROPERTIES [patent_app_type] => utility [patent_app_number] => 17/444365 [patent_app_country] => US [patent_app_date] => 2021-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8967 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17444365 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/444365
Determination of mud-filtrate contamination and clean formation fluid properties Aug 2, 2021 Issued
Array ( [id] => 17386406 [patent_doc_number] => 20220034258 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-03 [patent_title] => SYSTEM AND PROCESS FOR PRODUCING CLEAN ENERGY FROM HYDROCARBON RESERVOIRS [patent_app_type] => utility [patent_app_number] => 17/390242 [patent_app_country] => US [patent_app_date] => 2021-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12156 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17390242 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/390242
SYSTEM AND PROCESS FOR PRODUCING CLEAN ENERGY FROM HYDROCARBON RESERVOIRS Jul 29, 2021 Abandoned
Array ( [id] => 17229259 [patent_doc_number] => 20210355815 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-18 [patent_title] => DEVICES, SYSTEMS, AND METHODS FOR SELECTIVELY ENGAGING DOWNHOLE TOOL FOR WELLBORE OPERATIONS [patent_app_type] => utility [patent_app_number] => 17/386422 [patent_app_country] => US [patent_app_date] => 2021-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 21543 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [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] => 17386422 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/386422
Devices, systems, and methods for selectively engaging downhole tool for wellbore operations Jul 26, 2021 Issued
Array ( [id] => 19218565 [patent_doc_number] => 20240183269 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-06 [patent_title] => CONSTANT MASS GAS EXTRACTION FOR GAS EVALUATION DURING DRILLING [patent_app_type] => utility [patent_app_number] => 17/784219 [patent_app_country] => US [patent_app_date] => 2021-07-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8540 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17784219 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/784219
CONSTANT MASS GAS EXTRACTION FOR GAS EVALUATION DURING DRILLING Jul 15, 2021 Pending
Array ( [id] => 18315501 [patent_doc_number] => 11629574 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-04-18 [patent_title] => Electrical submersible pump gas relief valve [patent_app_type] => utility [patent_app_number] => 17/378402 [patent_app_country] => US [patent_app_date] => 2021-07-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 10818 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 242 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17378402 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/378402
Electrical submersible pump gas relief valve Jul 15, 2021 Issued
Array ( [id] => 19060606 [patent_doc_number] => 11939820 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-26 [patent_title] => Systems and methods for tubular element handling [patent_app_type] => utility [patent_app_number] => 17/374434 [patent_app_country] => US [patent_app_date] => 2021-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 5058 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17374434 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/374434
Systems and methods for tubular element handling Jul 12, 2021 Issued
Array ( [id] => 18605164 [patent_doc_number] => 11746620 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-09-05 [patent_title] => Injection valve, system and method [patent_app_type] => utility [patent_app_number] => 17/357079 [patent_app_country] => US [patent_app_date] => 2021-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2076 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17357079 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/357079
Injection valve, system and method Jun 23, 2021 Issued
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