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] => 19188463 [patent_doc_number] => 20240167376 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-23 [patent_title] => PERMANENT ELECTROMAGNET SENSOR TO DETECT THE END OF REVERSE CEMENTING [patent_app_type] => utility [patent_app_number] => 17/988881 [patent_app_country] => US [patent_app_date] => 2022-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4865 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 62 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17988881 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/988881
Permanent electromagnet sensor to detect the end of reverse cementing Nov 16, 2022 Issued
Array ( [id] => 19242431 [patent_doc_number] => 12012854 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-18 [patent_title] => Sidetrack casing assembly for drilling sidetrack wellbores [patent_app_type] => utility [patent_app_number] => 18/055942 [patent_app_country] => US [patent_app_date] => 2022-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 5634 [patent_no_of_claims] => 12 [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] => 18055942 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/055942
Sidetrack casing assembly for drilling sidetrack wellbores Nov 15, 2022 Issued
Array ( [id] => 19659114 [patent_doc_number] => 20240426179 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-26 [patent_title] => THREAD PITCH [patent_app_type] => utility [patent_app_number] => 18/710854 [patent_app_country] => US [patent_app_date] => 2022-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2885 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 199 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18710854 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/710854
Thread pitch Nov 15, 2022 Issued
Array ( [id] => 18636680 [patent_doc_number] => 11761269 [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] => 18/051591 [patent_app_country] => US [patent_app_date] => 2022-11-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 29 [patent_no_of_words] => 11297 [patent_no_of_claims] => 20 [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] => 18051591 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/051591
Wellhead penetrator for electrical connections Oct 31, 2022 Issued
Array ( [id] => 18297890 [patent_doc_number] => 20230107576 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-06 [patent_title] => DRILLING TURBINE AND METHOD OF DIRECTIONAL DRILLING [patent_app_type] => utility [patent_app_number] => 18/050857 [patent_app_country] => US [patent_app_date] => 2022-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8658 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [patent_words_short_claim] => 1 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18050857 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/050857
Drilling turbine and method of directional drilling Oct 27, 2022 Issued
Array ( [id] => 18211708 [patent_doc_number] => 20230057971 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-23 [patent_title] => Downhole Pump Gas Eliminating Seating Nipple System [patent_app_type] => utility [patent_app_number] => 17/975927 [patent_app_country] => US [patent_app_date] => 2022-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12094 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17975927 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/975927
Downhole Pump Gas Eliminating Seating Nipple System Oct 27, 2022 Abandoned
Array ( [id] => 19142906 [patent_doc_number] => 20240141760 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-02 [patent_title] => SELF-RUNNING LOWER COMPLETION SCREEN [patent_app_type] => utility [patent_app_number] => 18/050919 [patent_app_country] => US [patent_app_date] => 2022-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3463 [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] => 18050919 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/050919
Self-running lower completion screen Oct 27, 2022 Issued
Array ( [id] => 18794382 [patent_doc_number] => 11828142 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-11-28 [patent_title] => System and method for hydraulically expanding a liner hanger [patent_app_type] => utility [patent_app_number] => 17/971382 [patent_app_country] => US [patent_app_date] => 2022-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 5973 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 259 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17971382 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/971382
System and method for hydraulically expanding a liner hanger Oct 20, 2022 Issued
Array ( [id] => 18326744 [patent_doc_number] => 20230124872 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-20 [patent_title] => OSCILLATION REDUCTION TOOL AND METHOD [patent_app_type] => utility [patent_app_number] => 17/965951 [patent_app_country] => US [patent_app_date] => 2022-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4447 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 17965951 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/965951
Oscillation reduction tool and method Oct 13, 2022 Issued
Array ( [id] => 18310131 [patent_doc_number] => 20230114031 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-13 [patent_title] => KICKOVER TOOL [patent_app_type] => utility [patent_app_number] => 17/938899 [patent_app_country] => US [patent_app_date] => 2022-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19693 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17938899 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/938899
Kickover tool Oct 6, 2022 Issued
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] => 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] => 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] => 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
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