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] => 19738755 [patent_doc_number] => 12215579 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-02-04 [patent_title] => Well initiation service system with packer control system [patent_app_type] => utility [patent_app_number] => 18/477506 [patent_app_country] => US [patent_app_date] => 2023-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 10477 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 230 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18477506 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/477506
Well initiation service system with packer control system Sep 27, 2023 Issued
Array ( [id] => 19863053 [patent_doc_number] => 20250101839 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-27 [patent_title] => Hoop Stress Reducer In Perforating Guns [patent_app_type] => utility [patent_app_number] => 18/371285 [patent_app_country] => US [patent_app_date] => 2023-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9176 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18371285 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/371285
Hoop Stress Reducer In Perforating Guns Sep 20, 2023 Pending
Array ( [id] => 19020773 [patent_doc_number] => 20240076944 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-07 [patent_title] => System and Method for Deploying ESP on Coiled Tubing [patent_app_type] => utility [patent_app_number] => 18/242292 [patent_app_country] => US [patent_app_date] => 2023-09-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3900 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18242292 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/242292
System and method for deploying ESP on coiled tubing Sep 4, 2023 Issued
Array ( [id] => 19651825 [patent_doc_number] => 12173601 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-12-24 [patent_title] => Noise characterization in formation testing [patent_app_type] => utility [patent_app_number] => 18/240188 [patent_app_country] => US [patent_app_date] => 2023-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 8946 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 268 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18240188 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/240188
Noise characterization in formation testing Aug 29, 2023 Issued
Array ( [id] => 19817394 [patent_doc_number] => 20250075601 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-06 [patent_title] => FLEXIBLE ANVIL FOR A PLUNGER LIFT SYSTEM [patent_app_type] => utility [patent_app_number] => 18/239625 [patent_app_country] => US [patent_app_date] => 2023-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3966 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 18239625 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/239625
Flexible anvil for a plunger lift system Aug 28, 2023 Issued
Array ( [id] => 20158743 [patent_doc_number] => 12385357 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-12 [patent_title] => Devices, systems, and methods for selectively engaging downhole tool for wellbore operations [patent_app_type] => utility [patent_app_number] => 18/453053 [patent_app_country] => US [patent_app_date] => 2023-08-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 34 [patent_no_of_words] => 16227 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 332 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18453053 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/453053
Devices, systems, and methods for selectively engaging downhole tool for wellbore operations Aug 20, 2023 Issued
Array ( [id] => 19977680 [patent_doc_number] => 12345146 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-01 [patent_title] => Methods for conducting a pressure test to minimize over pressurization for a fluid distribution system [patent_app_type] => utility [patent_app_number] => 18/235635 [patent_app_country] => US [patent_app_date] => 2023-08-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 4543 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18235635 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/235635
Methods for conducting a pressure test to minimize over pressurization for a fluid distribution system Aug 17, 2023 Issued
Array ( [id] => 19755069 [patent_doc_number] => 20250043634 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-06 [patent_title] => METHOD AND APPARATUS FOR OPERATING HYDRAULIC EQUIPMENT THROUGH A ROTARY TABLE [patent_app_type] => utility [patent_app_number] => 18/362554 [patent_app_country] => US [patent_app_date] => 2023-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2732 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 18362554 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/362554
Method and apparatus for operating hydraulic equipment through a rotary table Jul 30, 2023 Issued
Array ( [id] => 19668063 [patent_doc_number] => 12180797 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-31 [patent_title] => Devices, systems, and methods for selectively engaging downhole tool for wellbore operations [patent_app_type] => utility [patent_app_number] => 18/226612 [patent_app_country] => US [patent_app_date] => 2023-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 34 [patent_no_of_words] => 21578 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 188 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18226612 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/226612
Devices, systems, and methods for selectively engaging downhole tool for wellbore operations Jul 25, 2023 Issued
Array ( [id] => 19624580 [patent_doc_number] => 12163390 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-10 [patent_title] => Devices, systems, and methods for selectively engaging downhole tool for wellbore operations [patent_app_type] => utility [patent_app_number] => 18/226585 [patent_app_country] => US [patent_app_date] => 2023-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 34 [patent_no_of_words] => 21584 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 266 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18226585 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/226585
Devices, systems, and methods for selectively engaging downhole tool for wellbore operations Jul 25, 2023 Issued
Array ( [id] => 18771629 [patent_doc_number] => 20230366450 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-16 [patent_title] => Multi-Plunger Pumps and Associated Drive Systems [patent_app_type] => utility [patent_app_number] => 18/357271 [patent_app_country] => US [patent_app_date] => 2023-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4498 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [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] => 18357271 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/357271
Multi-plunger pumps and associated drive systems Jul 23, 2023 Issued
Array ( [id] => 19724639 [patent_doc_number] => 20250027390 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-23 [patent_title] => WELL TOOL HAVING AN AUTONOMOUS BALLISIC ARMING MECHANISM [patent_app_type] => utility [patent_app_number] => 18/355778 [patent_app_country] => US [patent_app_date] => 2023-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8171 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 48 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18355778 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/355778
WELL TOOL HAVING AN AUTONOMOUS BALLISIC ARMING MECHANISM Jul 19, 2023 Pending
Array ( [id] => 19724639 [patent_doc_number] => 20250027390 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-23 [patent_title] => WELL TOOL HAVING AN AUTONOMOUS BALLISIC ARMING MECHANISM [patent_app_type] => utility [patent_app_number] => 18/355778 [patent_app_country] => US [patent_app_date] => 2023-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8171 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 48 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18355778 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/355778
WELL TOOL HAVING AN AUTONOMOUS BALLISIC ARMING MECHANISM Jul 19, 2023 Pending
Array ( [id] => 19638256 [patent_doc_number] => 12168860 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-17 [patent_title] => Pneumatic lift and recharge system for horizontal water wells [patent_app_type] => utility [patent_app_number] => 18/222406 [patent_app_country] => US [patent_app_date] => 2023-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6814 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 757 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18222406 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/222406
Pneumatic lift and recharge system for horizontal water wells Jul 13, 2023 Issued
Array ( [id] => 20372950 [patent_doc_number] => 12480379 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-25 [patent_title] => Systems for a low friction slip sleeve and related methods [patent_app_type] => utility [patent_app_number] => 18/341728 [patent_app_country] => US [patent_app_date] => 2023-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 16 [patent_no_of_words] => 0 [patent_no_of_claims] => 18 [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] => 18341728 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/341728
Systems for a low friction slip sleeve and related methods Jun 25, 2023 Issued
Array ( [id] => 18709850 [patent_doc_number] => 20230332472 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-19 [patent_title] => PERMANENTLY INSTALLED IN-WELL DRY MATE CONNECTORS WITH SHAPE MEMORY ALLOY TECHNOLOGY [patent_app_type] => utility [patent_app_number] => 18/339468 [patent_app_country] => US [patent_app_date] => 2023-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2849 [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] => 18339468 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/339468
Permanently installed in-well dry mate connectors with shape memory alloy technology Jun 21, 2023 Issued
Array ( [id] => 18903348 [patent_doc_number] => 20240018833 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-18 [patent_title] => AUTOMATED APPARATUS FOR OIL FIELD DRILLING AND WORKOVER OPERATIONS [patent_app_type] => utility [patent_app_number] => 18/335992 [patent_app_country] => US [patent_app_date] => 2023-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 26635 [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] => 18335992 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/335992
Automated apparatus for oil field drilling and workover operations Jun 14, 2023 Issued
Array ( [id] => 20302870 [patent_doc_number] => 12448852 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-21 [patent_title] => Fixed cutter drill bits and cutter element with secondary cutting edges for same [patent_app_type] => utility [patent_app_number] => 18/199668 [patent_app_country] => US [patent_app_date] => 2023-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 35 [patent_no_of_words] => 16869 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 240 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18199668 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/199668
Fixed cutter drill bits and cutter element with secondary cutting edges for same May 18, 2023 Issued
Array ( [id] => 19354583 [patent_doc_number] => 12055014 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-08-06 [patent_title] => Sealing system for downhole tool [patent_app_type] => utility [patent_app_number] => 18/317754 [patent_app_country] => US [patent_app_date] => 2023-05-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 15 [patent_no_of_words] => 3911 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18317754 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/317754
Sealing system for downhole tool May 14, 2023 Issued
Array ( [id] => 19940763 [patent_doc_number] => 12312886 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-27 [patent_title] => Downhole tool string [patent_app_type] => utility [patent_app_number] => 18/303433 [patent_app_country] => US [patent_app_date] => 2023-04-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 12 [patent_no_of_words] => 0 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 416 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18303433 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/303433
Downhole tool string Apr 18, 2023 Issued
Menu