Search

David L. Andrews

Examiner (ID: 10719, Phone: (571)272-6558 , Office: P/3672 )

Most Active Art Unit
3672
Art Unit(s)
3672
Total Applications
1186
Issued Applications
813
Pending Applications
83
Abandoned Applications
306

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19368701 [patent_doc_number] => 12060777 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-08-13 [patent_title] => Liner hanger expansion tool with rotating ball valve [patent_app_type] => utility [patent_app_number] => 17/936482 [patent_app_country] => US [patent_app_date] => 2022-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 12 [patent_no_of_words] => 5410 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17936482 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/936482
Liner hanger expansion tool with rotating ball valve Sep 28, 2022 Issued
Array ( [id] => 18142915 [patent_doc_number] => 20230016759 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-19 [patent_title] => ALIGNMENT SUB AND PERFORATING GUN ASSEMBLY WITH ALIGNMENT SUB [patent_app_type] => utility [patent_app_number] => 17/955815 [patent_app_country] => US [patent_app_date] => 2022-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7607 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 17955815 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/955815
Alignment sub and perforating gun assembly with alignment sub Sep 28, 2022 Issued
Array ( [id] => 18771481 [patent_doc_number] => 20230366302 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-16 [patent_title] => SYSTEM FOR SEGMENTED SIMULTANEOUS WATER INJECTION AND OIL RECOVERY THROUGH DOUBLE PIPES IN HORIZONTAL SECTION [patent_app_type] => utility [patent_app_number] => 17/940602 [patent_app_country] => US [patent_app_date] => 2022-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3437 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17940602 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/940602
System for segmented simultaneous water injection and oil recovery through double pipes in horizontal section Sep 7, 2022 Issued
Array ( [id] => 19034832 [patent_doc_number] => 20240084647 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-14 [patent_title] => CONTROL LINE CLAMP CONFIGURATION, METHOD AND SYSTEM [patent_app_type] => utility [patent_app_number] => 17/940543 [patent_app_country] => US [patent_app_date] => 2022-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2668 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 33 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17940543 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/940543
Control line clamp configuration, method and system Sep 7, 2022 Issued
Array ( [id] => 19020776 [patent_doc_number] => 20240076947 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-07 [patent_title] => WASHOUT MITIGATION [patent_app_type] => utility [patent_app_number] => 17/939656 [patent_app_country] => US [patent_app_date] => 2022-09-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3280 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17939656 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/939656
Washout mitigation Sep 6, 2022 Issued
Array ( [id] => 18093845 [patent_doc_number] => 20220412186 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-29 [patent_title] => DISSOLVABLE BRIDGE PLUGS [patent_app_type] => utility [patent_app_number] => 17/929999 [patent_app_country] => US [patent_app_date] => 2022-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11119 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 17929999 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/929999
Dissolvable bridge plugs Sep 5, 2022 Issued
Array ( [id] => 18825648 [patent_doc_number] => 11840920 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-12-12 [patent_title] => Downhole fluid acquisition, hidden pay identification, and stimulation system and method [patent_app_type] => utility [patent_app_number] => 17/903633 [patent_app_country] => US [patent_app_date] => 2022-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 10340 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 517 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17903633 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/903633
Downhole fluid acquisition, hidden pay identification, and stimulation system and method Sep 5, 2022 Issued
Array ( [id] => 18296133 [patent_doc_number] => 20230105819 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-06 [patent_title] => GUIDE ASSEMBLY, METHOD AND SYSTEM [patent_app_type] => utility [patent_app_number] => 17/890390 [patent_app_country] => US [patent_app_date] => 2022-08-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4054 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 33 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17890390 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/890390
Guide assembly, method and system Aug 17, 2022 Issued
Array ( [id] => 18972644 [patent_doc_number] => 20240052736 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-15 [patent_title] => MICROWAVE HEATING TECHNIQUE FOR TREATMENT OF CONDENSATE BUILDUP [patent_app_type] => utility [patent_app_number] => 17/818536 [patent_app_country] => US [patent_app_date] => 2022-08-09 [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] => -13 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17818536 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/818536
Microwave heating technique for treatment of condensate buildup Aug 8, 2022 Issued
Array ( [id] => 18940233 [patent_doc_number] => 20240035372 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => DENSITY SENSOR FOR QUANTIFYING PRODUCTION FLUID CONTENT [patent_app_type] => utility [patent_app_number] => 17/878394 [patent_app_country] => US [patent_app_date] => 2022-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10171 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -30 [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] => 17878394 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/878394
DENSITY SENSOR FOR QUANTIFYING PRODUCTION FLUID CONTENT Jul 31, 2022 Pending
Array ( [id] => 19333118 [patent_doc_number] => 20240247548 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => DRILL BIT [patent_app_type] => utility [patent_app_number] => 18/294926 [patent_app_country] => US [patent_app_date] => 2022-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5941 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [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] => 18294926 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/294926
DRILL BIT Jul 27, 2022 Issued
Array ( [id] => 18940223 [patent_doc_number] => 20240035362 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => CLOSED LOOP MONITORING AND CONTROL OF A CHEMICAL INJECTION SYSTEM [patent_app_type] => utility [patent_app_number] => 17/876131 [patent_app_country] => US [patent_app_date] => 2022-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8108 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17876131 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/876131
CLOSED LOOP MONITORING AND CONTROL OF A CHEMICAL INJECTION SYSTEM Jul 27, 2022 Abandoned
Array ( [id] => 18895879 [patent_doc_number] => 20240011364 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-11 [patent_title] => TUBING-CASING ANNULUS SCANNER TOOL [patent_app_type] => utility [patent_app_number] => 17/811432 [patent_app_country] => US [patent_app_date] => 2022-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5127 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 169 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17811432 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/811432
Tubing-casing annulus scanner tool Jul 7, 2022 Issued
Array ( [id] => 18126491 [patent_doc_number] => 20230012112 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-12 [patent_title] => Ejector Manifold and Subsurface Process to Harvest Low-Pressure Natural Gas [patent_app_type] => utility [patent_app_number] => 17/854969 [patent_app_country] => US [patent_app_date] => 2022-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7705 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17854969 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/854969
Ejector manifold and subsurface process to harvest low-pressure natural gas Jun 29, 2022 Issued
Array ( [id] => 18078115 [patent_doc_number] => 20220403727 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-22 [patent_title] => DOWNHOLE PRODUCTION SYSTEM WITH FLOW DIVERTER FOR GAS SEPARATION [patent_app_type] => utility [patent_app_number] => 17/843148 [patent_app_country] => US [patent_app_date] => 2022-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8743 [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] => 17843148 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/843148
DOWNHOLE PRODUCTION SYSTEM WITH FLOW DIVERTER FOR GAS SEPARATION Jun 16, 2022 Pending
Array ( [id] => 18831416 [patent_doc_number] => 20230399943 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-14 [patent_title] => FLUID IDENTIFICATION OUTSIDE OF WELLBORE TUBING [patent_app_type] => utility [patent_app_number] => 17/836962 [patent_app_country] => US [patent_app_date] => 2022-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7006 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17836962 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/836962
Fluid identification outside of wellbore tubing Jun 8, 2022 Issued
Array ( [id] => 19624592 [patent_doc_number] => 12163402 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-10 [patent_title] => Magnetically coupled subsurface safety valve [patent_app_type] => utility [patent_app_number] => 17/836237 [patent_app_country] => US [patent_app_date] => 2022-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 25 [patent_figures_cnt] => 25 [patent_no_of_words] => 8381 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 221 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17836237 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/836237
Magnetically coupled subsurface safety valve Jun 8, 2022 Issued
Array ( [id] => 18818154 [patent_doc_number] => 20230392494 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-07 [patent_title] => CLEANING A PRODUCTION LOGGING SPINNER FLOWMETER [patent_app_type] => utility [patent_app_number] => 17/832024 [patent_app_country] => US [patent_app_date] => 2022-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4900 [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] => 17832024 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/832024
Cleaning a production logging spinner flowmeter Jun 2, 2022 Issued
Array ( [id] => 18065932 [patent_doc_number] => 20220397019 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-15 [patent_title] => TUBING ANCHOR GAS VENT AND ASSOCIATED METHODS AND SYSTEMS [patent_app_type] => utility [patent_app_number] => 17/831658 [patent_app_country] => US [patent_app_date] => 2022-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3292 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17831658 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/831658
Tubing anchor gas vent and associated methods and systems Jun 2, 2022 Issued
Array ( [id] => 20214029 [patent_doc_number] => 12410674 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-09 [patent_title] => Downhole millable permanent plug and method for setting a downhole millable permanent plug [patent_app_type] => utility [patent_app_number] => 18/568120 [patent_app_country] => US [patent_app_date] => 2022-06-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 19 [patent_no_of_words] => 1096 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18568120 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/568120
Downhole millable permanent plug and method for setting a downhole millable permanent plug Jun 1, 2022 Issued
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