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] => 19565210 [patent_doc_number] => 12139974 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-12 [patent_title] => Petroleum drill-string shock absorbers [patent_app_type] => utility [patent_app_number] => 17/700555 [patent_app_country] => US [patent_app_date] => 2022-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4155 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 294 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17700555 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/700555
Petroleum drill-string shock absorbers Mar 21, 2022 Issued
Array ( [id] => 17883408 [patent_doc_number] => 20220298885 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-22 [patent_title] => PACKER APPARATUS [patent_app_type] => utility [patent_app_number] => 17/696805 [patent_app_country] => US [patent_app_date] => 2022-03-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4669 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17696805 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/696805
PACKER APPARATUS Mar 15, 2022 Abandoned
Array ( [id] => 18628864 [patent_doc_number] => 20230287744 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-14 [patent_title] => ELECTRICAL WET-MATE CONNECTIONS [patent_app_type] => utility [patent_app_number] => 17/654525 [patent_app_country] => US [patent_app_date] => 2022-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2823 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 58 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17654525 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/654525
ELECTRICAL WET-MATE CONNECTIONS Mar 10, 2022 Abandoned
Array ( [id] => 19779005 [patent_doc_number] => 12228029 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-18 [patent_title] => Wireless transmission and reception of electrical signals via tubing encased conductor [patent_app_type] => utility [patent_app_number] => 17/690514 [patent_app_country] => US [patent_app_date] => 2022-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 6131 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 325 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17690514 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/690514
Wireless transmission and reception of electrical signals via tubing encased conductor Mar 8, 2022 Issued
Array ( [id] => 18888249 [patent_doc_number] => 11867015 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-01-09 [patent_title] => Downhole friction reduction systems [patent_app_type] => utility [patent_app_number] => 17/686674 [patent_app_country] => US [patent_app_date] => 2022-03-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 25 [patent_no_of_words] => 13716 [patent_no_of_claims] => 31 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17686674 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/686674
Downhole friction reduction systems Mar 3, 2022 Issued
Array ( [id] => 17852552 [patent_doc_number] => 20220282594 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-08 [patent_title] => SYSTEM AND PROCESS FOR INSTALLING A HYDROCARBON PRODUCTION SYSTEM [patent_app_type] => utility [patent_app_number] => 17/683678 [patent_app_country] => US [patent_app_date] => 2022-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6256 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [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] => 17683678 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/683678
System and process for installing a hydrocarbon production system Feb 28, 2022 Issued
Array ( [id] => 19127936 [patent_doc_number] => 20240133289 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-25 [patent_title] => PERCUSSION DRILLING APPARATUS AND METHOD FOR MEASUREMENT WHILE DRILLING [patent_app_type] => utility [patent_app_number] => 18/278419 [patent_app_country] => US [patent_app_date] => 2022-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9887 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18278419 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/278419
PERCUSSION DRILLING APPARATUS AND METHOD FOR MEASUREMENT WHILE DRILLING Feb 22, 2022 Pending
Array ( [id] => 17657784 [patent_doc_number] => 20220178249 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-09 [patent_title] => DEVICES, SYSTEMS, AND METHODS FOR SELECTIVELY ENGAGING DOWNHOLE TOOL FOR WELLBORE OPERATIONS [patent_app_type] => utility [patent_app_number] => 17/678895 [patent_app_country] => US [patent_app_date] => 2022-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 21545 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 17678895 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/678895
Devices, systems, and methods for selectively engaging downhole tool for wellbore operations Feb 22, 2022 Issued
Array ( [id] => 19127936 [patent_doc_number] => 20240133289 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-25 [patent_title] => PERCUSSION DRILLING APPARATUS AND METHOD FOR MEASUREMENT WHILE DRILLING [patent_app_type] => utility [patent_app_number] => 18/278419 [patent_app_country] => US [patent_app_date] => 2022-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9887 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18278419 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/278419
PERCUSSION DRILLING APPARATUS AND METHOD FOR MEASUREMENT WHILE DRILLING Feb 22, 2022 Pending
Array ( [id] => 17792828 [patent_doc_number] => 20220251919 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-11 [patent_title] => DUAL TUBING STRING ADAPTOR [patent_app_type] => utility [patent_app_number] => 17/650123 [patent_app_country] => US [patent_app_date] => 2022-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3203 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 184 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17650123 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/650123
Dual tubing string adaptor Feb 6, 2022 Issued
Array ( [id] => 19631780 [patent_doc_number] => 20240410229 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => PULSED HIGH-POWER DRILL BIT AND DRILLING TOOL [patent_app_type] => utility [patent_app_number] => 18/273951 [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] => 3628 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18273951 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/273951
Pulsed high-power drill bit and drilling tool Jan 30, 2022 Issued
Array ( [id] => 19227159 [patent_doc_number] => 12006793 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-11 [patent_title] => Devices, systems, and methods for selectively engaging downhole tool for wellbore operations [patent_app_type] => utility [patent_app_number] => 17/586536 [patent_app_country] => US [patent_app_date] => 2022-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 25 [patent_figures_cnt] => 43 [patent_no_of_words] => 29593 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 431 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17586536 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/586536
Devices, systems, and methods for selectively engaging downhole tool for wellbore operations Jan 26, 2022 Issued
Array ( [id] => 17596138 [patent_doc_number] => 20220145712 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-12 [patent_title] => Expandable Liner Hanger [patent_app_type] => utility [patent_app_number] => 17/583898 [patent_app_country] => US [patent_app_date] => 2022-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1881 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17583898 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/583898
Expandable liner hanger Jan 24, 2022 Issued
Array ( [id] => 19067944 [patent_doc_number] => 20240102370 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-28 [patent_title] => SYSTEM AND METHOD FOR STIMULATING MULTIPLE ZONES [patent_app_type] => utility [patent_app_number] => 18/264293 [patent_app_country] => US [patent_app_date] => 2022-01-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4692 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18264293 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/264293
System and method for stimulating multiple zones Jan 17, 2022 Issued
Array ( [id] => 17563782 [patent_doc_number] => 20220127931 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-28 [patent_title] => SHIFTING TOOL AND ASSOCIATED METHODS FOR OPERATING DOWNHOLE VALVES [patent_app_type] => utility [patent_app_number] => 17/572584 [patent_app_country] => US [patent_app_date] => 2022-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11125 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -31 [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] => 17572584 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/572584
SHIFTING TOOL AND ASSOCIATED METHODS FOR OPERATING DOWNHOLE VALVES Jan 9, 2022 Abandoned
Array ( [id] => 17548802 [patent_doc_number] => 20220120143 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-21 [patent_title] => DOWNHOLE MCEI INDUCTIVE COUPLER WITH HELICAL COIL [patent_app_type] => utility [patent_app_number] => 17/567110 [patent_app_country] => US [patent_app_date] => 2022-01-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5729 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 17567110 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/567110
Downhole MCEI inductive coupler with helical coil Dec 31, 2021 Issued
Array ( [id] => 17852537 [patent_doc_number] => 20220282579 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-08 [patent_title] => SHEAR COUPLING FOR SUCKER ROD STRING [patent_app_type] => utility [patent_app_number] => 17/550221 [patent_app_country] => US [patent_app_date] => 2021-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10865 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 263 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17550221 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/550221
Shear coupling for sucker rod string Dec 13, 2021 Issued
Array ( [id] => 19051589 [patent_doc_number] => 20240093558 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-21 [patent_title] => IMPROVEMENTS RELATING TO COILED TUBING [patent_app_type] => utility [patent_app_number] => 18/256911 [patent_app_country] => US [patent_app_date] => 2021-12-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4179 [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] => 18256911 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/256911
Coiled tubing Dec 8, 2021 Issued
Array ( [id] => 17657746 [patent_doc_number] => 20220178211 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-09 [patent_title] => Electrical Transmission In A Well Using Wire Mesh [patent_app_type] => utility [patent_app_number] => 17/535390 [patent_app_country] => US [patent_app_date] => 2021-11-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8745 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17535390 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/535390
Electrical transmission in a well using wire mesh Nov 23, 2021 Issued
Array ( [id] => 18605177 [patent_doc_number] => 11746633 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-09-05 [patent_title] => High pressure jumper manifold [patent_app_type] => utility [patent_app_number] => 17/531629 [patent_app_country] => US [patent_app_date] => 2021-11-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 42 [patent_no_of_words] => 8589 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 490 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17531629 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/531629
High pressure jumper manifold Nov 18, 2021 Issued
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