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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] => 20194185 [patent_doc_number] => 20250270895 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-28 [patent_title] => SAFETY VALVE EMPLOYING A MECHANICAL CONNECTING APPARATUS HAVING ONE OR MORE MAGNETIC TARGETS [patent_app_type] => utility [patent_app_number] => 19/062310 [patent_app_country] => US [patent_app_date] => 2025-02-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9487 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19062310 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/062310
SAFETY VALVE EMPLOYING A MECHANICAL CONNECTING APPARATUS HAVING ONE OR MORE MAGNETIC TARGETS Feb 24, 2025 Pending
Array ( [id] => 19832945 [patent_doc_number] => 20250084731 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-13 [patent_title] => MAGNETICALLY COUPLED SUBSURFACE SAFETY VALVE [patent_app_type] => utility [patent_app_number] => 18/959063 [patent_app_country] => US [patent_app_date] => 2024-11-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8431 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18959063 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/959063
MAGNETICALLY COUPLED SUBSURFACE SAFETY VALVE Nov 24, 2024 Pending
Array ( [id] => 19817409 [patent_doc_number] => 20250075616 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-06 [patent_title] => NOISE CHARACTERIZATION IN FORMATION TESTING [patent_app_type] => utility [patent_app_number] => 18/946709 [patent_app_country] => US [patent_app_date] => 2024-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8979 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18946709 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/946709
NOISE CHARACTERIZATION IN FORMATION TESTING Nov 12, 2024 Pending
Array ( [id] => 19755072 [patent_doc_number] => 20250043637 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-06 [patent_title] => CONTROL LINE CLAMP CONFIGURATION, METHOD AND SYSTEM [patent_app_type] => utility [patent_app_number] => 18/921867 [patent_app_country] => US [patent_app_date] => 2024-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2699 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 18921867 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/921867
CONTROL LINE CLAMP CONFIGURATION, METHOD AND SYSTEM Oct 20, 2024 Pending
Array ( [id] => 19755072 [patent_doc_number] => 20250043637 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-06 [patent_title] => CONTROL LINE CLAMP CONFIGURATION, METHOD AND SYSTEM [patent_app_type] => utility [patent_app_number] => 18/921867 [patent_app_country] => US [patent_app_date] => 2024-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2699 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 18921867 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/921867
CONTROL LINE CLAMP CONFIGURATION, METHOD AND SYSTEM Oct 20, 2024 Pending
Array ( [id] => 19693630 [patent_doc_number] => 20250012175 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-09 [patent_title] => Perforating Panel Unit And Method [patent_app_type] => utility [patent_app_number] => 18/889079 [patent_app_country] => US [patent_app_date] => 2024-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8083 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18889079 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/889079
Perforating Panel Unit And Method Sep 17, 2024 Pending
Array ( [id] => 19801233 [patent_doc_number] => 20250067158 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-27 [patent_title] => DENSITY BASED DOWNHOLE FLUID SEPARATOR THAT CREATES ARTIFICIAL GRAVITY [patent_app_type] => utility [patent_app_number] => 18/812687 [patent_app_country] => US [patent_app_date] => 2024-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10019 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18812687 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/812687
DENSITY BASED DOWNHOLE FLUID SEPARATOR THAT CREATES ARTIFICIAL GRAVITY Aug 21, 2024 Pending
Array ( [id] => 19786193 [patent_doc_number] => 20250059872 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-20 [patent_title] => DOWNHOLE SEPARATOR [patent_app_type] => utility [patent_app_number] => 18/804689 [patent_app_country] => US [patent_app_date] => 2024-08-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4423 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 225 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18804689 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/804689
DOWNHOLE SEPARATOR Aug 13, 2024 Pending
Array ( [id] => 19724630 [patent_doc_number] => 20250027381 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-23 [patent_title] => RUPTURE DISC ASSEMBLY [patent_app_type] => utility [patent_app_number] => 18/791183 [patent_app_country] => US [patent_app_date] => 2024-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9859 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18791183 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/791183
Rupture disc assembly Jul 30, 2024 Issued
Array ( [id] => 19724630 [patent_doc_number] => 20250027381 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-23 [patent_title] => RUPTURE DISC ASSEMBLY [patent_app_type] => utility [patent_app_number] => 18/791183 [patent_app_country] => US [patent_app_date] => 2024-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9859 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18791183 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/791183
Rupture disc assembly Jul 30, 2024 Issued
Array ( [id] => 19770696 [patent_doc_number] => 20250052122 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-13 [patent_title] => SLIM HOLE FLOAT SUB [patent_app_type] => utility [patent_app_number] => 18/777917 [patent_app_country] => US [patent_app_date] => 2024-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5394 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18777917 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/777917
SLIM HOLE FLOAT SUB Jul 18, 2024 Pending
Array ( [id] => 19528903 [patent_doc_number] => 20240352805 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-24 [patent_title] => PERMANENTLY INSTALLED IN-WELL DRY MATE CONNECTORS WITH SHAPE MEMORY ALLOY TECHNOLOGY [patent_app_type] => utility [patent_app_number] => 18/761047 [patent_app_country] => US [patent_app_date] => 2024-07-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2856 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18761047 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/761047
PERMANENTLY INSTALLED IN-WELL DRY MATE CONNECTORS WITH SHAPE MEMORY ALLOY TECHNOLOGY Jun 30, 2024 Pending
Array ( [id] => 19528903 [patent_doc_number] => 20240352805 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-24 [patent_title] => PERMANENTLY INSTALLED IN-WELL DRY MATE CONNECTORS WITH SHAPE MEMORY ALLOY TECHNOLOGY [patent_app_type] => utility [patent_app_number] => 18/761047 [patent_app_country] => US [patent_app_date] => 2024-07-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2856 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18761047 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/761047
PERMANENTLY INSTALLED IN-WELL DRY MATE CONNECTORS WITH SHAPE MEMORY ALLOY TECHNOLOGY Jun 30, 2024 Pending
Array ( [id] => 19464838 [patent_doc_number] => 20240318507 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-26 [patent_title] => SUPPORTING SUBSTRATES FOR CUTTING ELEMENTS, AND RELATED METHODS [patent_app_type] => utility [patent_app_number] => 18/732260 [patent_app_country] => US [patent_app_date] => 2024-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 28600 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18732260 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/732260
SUPPORTING SUBSTRATES FOR CUTTING ELEMENTS, AND RELATED METHODS Jun 2, 2024 Pending
Array ( [id] => 20350349 [patent_doc_number] => 20250347201 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-13 [patent_title] => Systems and Methods for Expanding a Liner Hanger Using a Segmented Swage Assembly [patent_app_type] => utility [patent_app_number] => 18/658778 [patent_app_country] => US [patent_app_date] => 2024-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18658778 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/658778
Systems and Methods for Expanding a Liner Hanger Using a Segmented Swage Assembly May 7, 2024 Pending
Array ( [id] => 20350349 [patent_doc_number] => 20250347201 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-13 [patent_title] => Systems and Methods for Expanding a Liner Hanger Using a Segmented Swage Assembly [patent_app_type] => utility [patent_app_number] => 18/658778 [patent_app_country] => US [patent_app_date] => 2024-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18658778 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/658778
Systems and Methods for Expanding a Liner Hanger Using a Segmented Swage Assembly May 7, 2024 Pending
Array ( [id] => 20350349 [patent_doc_number] => 20250347201 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-13 [patent_title] => Systems and Methods for Expanding a Liner Hanger Using a Segmented Swage Assembly [patent_app_type] => utility [patent_app_number] => 18/658778 [patent_app_country] => US [patent_app_date] => 2024-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18658778 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/658778
Systems and Methods for Expanding a Liner Hanger Using a Segmented Swage Assembly May 7, 2024 Pending
Array ( [id] => 19755073 [patent_doc_number] => 20250043638 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-06 [patent_title] => BALL DEFLECTOR FOR FLOAT COLLAR [patent_app_type] => utility [patent_app_number] => 18/656053 [patent_app_country] => US [patent_app_date] => 2024-05-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7180 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18656053 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/656053
Ball deflector for float collar May 5, 2024 Issued
Array ( [id] => 19390129 [patent_doc_number] => 20240279999 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-22 [patent_title] => DEVICES, SYSTEMS, AND METHODS FOR SELECTIVELY ENGAGING DOWNHOLE TOOL FOR WELLBORE OPERATIONS [patent_app_type] => utility [patent_app_number] => 18/653272 [patent_app_country] => US [patent_app_date] => 2024-05-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 29589 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [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] => 18653272 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/653272
DEVICES, SYSTEMS, AND METHODS FOR SELECTIVELY ENGAGING DOWNHOLE TOOL FOR WELLBORE OPERATIONS May 1, 2024 Pending
Array ( [id] => 20330248 [patent_doc_number] => 12460517 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-04 [patent_title] => Interlocking perforation gun and methods of use [patent_app_type] => utility [patent_app_number] => 18/643288 [patent_app_country] => US [patent_app_date] => 2024-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 21 [patent_no_of_words] => 13795 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18643288 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/643288
Interlocking perforation gun and methods of use Apr 22, 2024 Issued
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