Search

Daniel P. Stephenson

Examiner (ID: 10464, Phone: (571)272-7035 , Office: P/3676 )

Most Active Art Unit
3676
Art Unit(s)
3673, 3676, 3672
Total Applications
1997
Issued Applications
1667
Pending Applications
111
Abandoned Applications
237

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19932292 [patent_doc_number] => 12305491 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-20 [patent_title] => Downhole tool [patent_app_type] => utility [patent_app_number] => 18/038175 [patent_app_country] => US [patent_app_date] => 2021-11-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 25 [patent_no_of_words] => 8430 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 299 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18038175 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/038175
Downhole tool Nov 11, 2021 Issued
Array ( [id] => 17444587 [patent_doc_number] => 20220065092 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-03 [patent_title] => GAS-LIFT SYSTEM WITH PAIRED CONTROLLERS [patent_app_type] => utility [patent_app_number] => 17/521520 [patent_app_country] => US [patent_app_date] => 2021-11-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8194 [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] => 17521520 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/521520
Gas-lift system with paired controllers Nov 7, 2021 Issued
17/518159 PERFORATING GUN AND METHOD OF USING SAME Nov 2, 2021 Abandoned
Array ( [id] => 18302343 [patent_doc_number] => 11624237 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-04-11 [patent_title] => Rotary steerable tool with proportional control valve [patent_app_type] => utility [patent_app_number] => 17/514682 [patent_app_country] => US [patent_app_date] => 2021-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 6791 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17514682 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/514682
Rotary steerable tool with proportional control valve Oct 28, 2021 Issued
Array ( [id] => 19354604 [patent_doc_number] => 12055035 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-08-06 [patent_title] => System and method for detecting a sinkhole [patent_app_type] => utility [patent_app_number] => 17/452721 [patent_app_country] => US [patent_app_date] => 2021-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 4045 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17452721 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/452721
System and method for detecting a sinkhole Oct 27, 2021 Issued
Array ( [id] => 20108844 [patent_doc_number] => 12359553 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-15 [patent_title] => Service improvements using adaptive models derived from classified vibration mechanisms [patent_app_type] => utility [patent_app_number] => 17/512457 [patent_app_country] => US [patent_app_date] => 2021-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17512457 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/512457
Service improvements using adaptive models derived from classified vibration mechanisms Oct 26, 2021 Issued
Array ( [id] => 19594641 [patent_doc_number] => 12152471 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-26 [patent_title] => Singular/wired fuzing device [patent_app_type] => utility [patent_app_number] => 18/250926 [patent_app_country] => US [patent_app_date] => 2021-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 10884 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18250926 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/250926
Singular/wired fuzing device Oct 26, 2021 Issued
Array ( [id] => 18384912 [patent_doc_number] => 11655684 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-05-23 [patent_title] => System for dislodging and extracting tubing from a wellbore [patent_app_type] => utility [patent_app_number] => 17/509176 [patent_app_country] => US [patent_app_date] => 2021-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 23 [patent_no_of_words] => 6431 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17509176 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/509176
System for dislodging and extracting tubing from a wellbore Oct 24, 2021 Issued
Array ( [id] => 18334004 [patent_doc_number] => 20230125952 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-27 [patent_title] => ELECTRICALLY ACTUATED TUBULAR CLEANING SYSTEM [patent_app_type] => utility [patent_app_number] => 17/508311 [patent_app_country] => US [patent_app_date] => 2021-10-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3675 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17508311 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/508311
Electrically actuated tubular cleaning system Oct 21, 2021 Issued
Array ( [id] => 17604534 [patent_doc_number] => 11333009 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-05-17 [patent_title] => Convertible and addressable switch assembly for wellbore operations [patent_app_type] => utility [patent_app_number] => 17/507909 [patent_app_country] => US [patent_app_date] => 2021-10-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 14759 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17507909 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/507909
Convertible and addressable switch assembly for wellbore operations Oct 21, 2021 Issued
Array ( [id] => 18323149 [patent_doc_number] => 20230121277 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-20 [patent_title] => SMART DEVICE, SYSTEM, AND METHOD FOR DIAGNOSING CASING-CASING ANNULUS (CCA) BEHAVIOR [patent_app_type] => utility [patent_app_number] => 17/451347 [patent_app_country] => US [patent_app_date] => 2021-10-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6916 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17451347 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/451347
Smart device, system, and method for diagnosing casing-casing annulus (CCA) behavior Oct 18, 2021 Issued
Array ( [id] => 18322993 [patent_doc_number] => 20230121121 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-20 [patent_title] => NONMETALLIC DOWNHOLE CHECK VALVE TO IMPROVE POWER WATER INJECTOR WELL SAFETY AND RELIABILITY [patent_app_type] => utility [patent_app_number] => 17/451440 [patent_app_country] => US [patent_app_date] => 2021-10-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5633 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17451440 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/451440
Nonmetallic downhole check valve to improve power water injector well safety and reliability Oct 18, 2021 Issued
Array ( [id] => 17721064 [patent_doc_number] => 20220213784 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-07 [patent_title] => CASING IMAGING METHOD [patent_app_type] => utility [patent_app_number] => 17/451115 [patent_app_country] => US [patent_app_date] => 2021-10-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5746 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [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] => 17451115 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/451115
Casing imaging method Oct 14, 2021 Issued
Array ( [id] => 17534171 [patent_doc_number] => 20220112780 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-14 [patent_title] => PNEUMATIC TRANSPORT SYSTEM AND METHOD FOR WELLBORE OPERATIONS [patent_app_type] => utility [patent_app_number] => 17/499551 [patent_app_country] => US [patent_app_date] => 2021-10-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7309 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 17 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17499551 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/499551
Pneumatic transport system and method for wellbore operations Oct 11, 2021 Issued
Array ( [id] => 17520990 [patent_doc_number] => 20220106839 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-07 [patent_title] => Casing Protection Bit [patent_app_type] => utility [patent_app_number] => 17/496150 [patent_app_country] => US [patent_app_date] => 2021-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4923 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17496150 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/496150
Casing protection bit Oct 6, 2021 Issued
Array ( [id] => 18545737 [patent_doc_number] => 11719079 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-08-08 [patent_title] => Non-mechanical ported perforating torch [patent_app_type] => utility [patent_app_number] => 17/492191 [patent_app_country] => US [patent_app_date] => 2021-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 22 [patent_no_of_words] => 3786 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 46 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17492191 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/492191
Non-mechanical ported perforating torch Sep 30, 2021 Issued
Array ( [id] => 18685696 [patent_doc_number] => 11781421 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-10-10 [patent_title] => Method and apparatus for magnetic ranging while drilling [patent_app_type] => utility [patent_app_number] => 17/482045 [patent_app_country] => US [patent_app_date] => 2021-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 5482 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17482045 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/482045
Method and apparatus for magnetic ranging while drilling Sep 21, 2021 Issued
Array ( [id] => 18620868 [patent_doc_number] => 11753896 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-09-12 [patent_title] => Systems and methods for deployment of a frac ball into a wellbore [patent_app_type] => utility [patent_app_number] => 17/473735 [patent_app_country] => US [patent_app_date] => 2021-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3164 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 100 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17473735 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/473735
Systems and methods for deployment of a frac ball into a wellbore Sep 12, 2021 Issued
Array ( [id] => 17460984 [patent_doc_number] => 20220074289 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-10 [patent_title] => OILFIELD PERFORATING SELF-POSITIONING SYSTEMS AND METHODS [patent_app_type] => utility [patent_app_number] => 17/471390 [patent_app_country] => US [patent_app_date] => 2021-09-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5594 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17471390 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/471390
Oilfield perforating self-positioning systems and methods Sep 9, 2021 Issued
Array ( [id] => 17444574 [patent_doc_number] => 20220065079 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-03 [patent_title] => CASING DEPLOYED WELL COMPLETION SYSTEMS AND METHODS [patent_app_type] => utility [patent_app_number] => 17/463080 [patent_app_country] => US [patent_app_date] => 2021-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11268 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 17463080 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/463080
Casing deployed well completion systems and methods Aug 30, 2021 Issued
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