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] => 19738749 [patent_doc_number] => 12215573 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-04 [patent_title] => Method and system for stealth mode operation of a drilling rig [patent_app_type] => utility [patent_app_number] => 18/307399 [patent_app_country] => US [patent_app_date] => 2023-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 12345 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18307399 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/307399
Method and system for stealth mode operation of a drilling rig Apr 25, 2023 Issued
Array ( [id] => 18576033 [patent_doc_number] => 11732551 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-08-22 [patent_title] => Fully electrically controlled intelligent subsurface safety valve [patent_app_type] => utility [patent_app_number] => 18/306270 [patent_app_country] => US [patent_app_date] => 2023-04-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 14 [patent_no_of_words] => 4212 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 351 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18306270 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/306270
Fully electrically controlled intelligent subsurface safety valve Apr 24, 2023 Issued
Array ( [id] => 20180026 [patent_doc_number] => 20250263984 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-21 [patent_title] => Vibratory Burrowing Probe for Investigating Subsurface Regions of Granular Media in IG and Low/Micro Gravity Conditions [patent_app_type] => utility [patent_app_number] => 18/857936 [patent_app_country] => US [patent_app_date] => 2023-04-17 [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] => -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] => 18857936 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/857936
Vibratory burrowing probe for investigating subsurface regions of granular media in IG and low/micro gravity conditions Apr 16, 2023 Issued
Array ( [id] => 19638211 [patent_doc_number] => 12168813 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-17 [patent_title] => Electrokinetic device and method for in-situ leaching of uranium [patent_app_type] => utility [patent_app_number] => 18/134161 [patent_app_country] => US [patent_app_date] => 2023-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 6143 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 255 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18134161 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/134161
Electrokinetic device and method for in-situ leaching of uranium Apr 12, 2023 Issued
Array ( [id] => 20330250 [patent_doc_number] => 12460519 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-04 [patent_title] => Perforating gun having modular construction [patent_app_type] => utility [patent_app_number] => 18/834908 [patent_app_country] => US [patent_app_date] => 2023-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 19 [patent_no_of_words] => 0 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18834908 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/834908
Perforating gun having modular construction Apr 11, 2023 Issued
Array ( [id] => 19433275 [patent_doc_number] => 20240301773 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-12 [patent_title] => METHOD AND DOWNHOLE DEVICE FOR PERFORATING AND ISOLATING TIGHTLY SPACED ZONES IN HIGHLY-DEVIATED WELLBORES [patent_app_type] => utility [patent_app_number] => 18/181469 [patent_app_country] => US [patent_app_date] => 2023-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8741 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18181469 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/181469
Method and downhole device for perforating and isolating tightly spaced zones in highly-deviated wellbores Mar 8, 2023 Issued
Array ( [id] => 19404367 [patent_doc_number] => 20240287878 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-29 [patent_title] => DUAL-PUMP ASSEMBLY TO SAMPLE DOWNHOLE HEAVY HYDROCARBONS [patent_app_type] => utility [patent_app_number] => 18/115530 [patent_app_country] => US [patent_app_date] => 2023-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5530 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18115530 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/115530
DUAL-PUMP ASSEMBLY TO SAMPLE DOWNHOLE HEAVY HYDROCARBONS Feb 27, 2023 Abandoned
Array ( [id] => 19404356 [patent_doc_number] => 20240287867 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-29 [patent_title] => FRAC PLUG DEVICE WITH AN ANCHOR MANDREL FOR A LOCKED SET CONFIGURATION [patent_app_type] => utility [patent_app_number] => 18/174416 [patent_app_country] => US [patent_app_date] => 2023-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5708 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 21 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18174416 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/174416
FRAC PLUG DEVICE WITH AN ANCHOR MANDREL FOR A LOCKED SET CONFIGURATION Feb 23, 2023 Abandoned
Array ( [id] => 19381621 [patent_doc_number] => 20240271491 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => CEMENT DRILL BIT [patent_app_type] => utility [patent_app_number] => 18/108020 [patent_app_country] => US [patent_app_date] => 2023-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1999 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18108020 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/108020
CEMENT DRILL BIT Feb 9, 2023 Abandoned
Array ( [id] => 19877410 [patent_doc_number] => 20250109667 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-03 [patent_title] => COMPACT IGNITER [patent_app_type] => utility [patent_app_number] => 18/725243 [patent_app_country] => US [patent_app_date] => 2023-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6351 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18725243 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/725243
Compact igniter Feb 7, 2023 Issued
Array ( [id] => 18552700 [patent_doc_number] => 20230250711 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-10 [patent_title] => CONTROL MODULE FOR A DETONATION SUB AND A DETONATION SUB [patent_app_type] => utility [patent_app_number] => 18/106696 [patent_app_country] => US [patent_app_date] => 2023-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3821 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18106696 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/106696
Control module for a detonation sub and a detonation sub Feb 6, 2023 Issued
Array ( [id] => 18879849 [patent_doc_number] => 20240003218 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-04 [patent_title] => METHODS AND SYSTEMS FOR A FRAC PLUG [patent_app_type] => utility [patent_app_number] => 18/105851 [patent_app_country] => US [patent_app_date] => 2023-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7559 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18105851 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/105851
Methods and systems for a frac plug Feb 4, 2023 Issued
Array ( [id] => 20242267 [patent_doc_number] => 12422582 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-23 [patent_title] => Updating subsurface structural maps with well-measured orientation data while preserving local geological structures [patent_app_type] => utility [patent_app_number] => 18/263319 [patent_app_country] => US [patent_app_date] => 2023-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 1977 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 276 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18263319 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/263319
Updating subsurface structural maps with well-measured orientation data while preserving local geological structures Feb 2, 2023 Issued
Array ( [id] => 19106271 [patent_doc_number] => 11959358 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-16 [patent_title] => Bleeding off a hydraulic fracturing manifold used in oil and gas extraction operations [patent_app_type] => utility [patent_app_number] => 18/159990 [patent_app_country] => US [patent_app_date] => 2023-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 9805 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 243 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18159990 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/159990
Bleeding off a hydraulic fracturing manifold used in oil and gas extraction operations Jan 25, 2023 Issued
Array ( [id] => 19551252 [patent_doc_number] => 12134952 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-05 [patent_title] => Hydraulic fracturing plan and execution of same [patent_app_type] => utility [patent_app_number] => 18/158122 [patent_app_country] => US [patent_app_date] => 2023-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 50 [patent_figures_cnt] => 55 [patent_no_of_words] => 13223 [patent_no_of_claims] => 78 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 348 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18158122 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/158122
Hydraulic fracturing plan and execution of same Jan 22, 2023 Issued
Array ( [id] => 19932293 [patent_doc_number] => 12305492 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-20 [patent_title] => Methods of characterizing a spatial property of a previously fractured stage of a hydrocarbon well and hydrocarbon wells that perform the methods [patent_app_type] => utility [patent_app_number] => 18/158096 [patent_app_country] => US [patent_app_date] => 2023-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 3358 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 216 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18158096 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/158096
Methods of characterizing a spatial property of a previously fractured stage of a hydrocarbon well and hydrocarbon wells that perform the methods Jan 22, 2023 Issued
Array ( [id] => 19181486 [patent_doc_number] => 11988070 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-05-21 [patent_title] => Drill string mountable wellbore cleanup apparatus and method [patent_app_type] => utility [patent_app_number] => 18/155339 [patent_app_country] => US [patent_app_date] => 2023-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 45 [patent_no_of_words] => 8672 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18155339 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/155339
Drill string mountable wellbore cleanup apparatus and method Jan 16, 2023 Issued
Array ( [id] => 19034834 [patent_doc_number] => 20240084649 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-14 [patent_title] => AUGER BORING USING A PIPE SEAL ASSEMBLY TO JOIN TOGETHER CASING PIPE SECTIONS [patent_app_type] => utility [patent_app_number] => 18/149739 [patent_app_country] => US [patent_app_date] => 2023-01-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2465 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 18149739 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/149739
Auger boring using a pipe seal assembly to join together casing pipe sections Jan 3, 2023 Issued
Array ( [id] => 19282289 [patent_doc_number] => 20240218763 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => METHODS AND SYSTEMS FOR FRACING [patent_app_type] => utility [patent_app_number] => 18/092752 [patent_app_country] => US [patent_app_date] => 2023-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3394 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 26 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18092752 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/092752
Methods and systems for fracing Jan 2, 2023 Issued
Array ( [id] => 19282274 [patent_doc_number] => 20240218748 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => Travel Joint With Telescoping Control Lines [patent_app_type] => utility [patent_app_number] => 18/090624 [patent_app_country] => US [patent_app_date] => 2022-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6741 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18090624 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/090624
Travel joint with telescoping control lines Dec 28, 2022 Issued
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