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] => 19274869 [patent_doc_number] => 12024986 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-07-02 [patent_title] => Downhole ignition assembly [patent_app_type] => utility [patent_app_number] => 17/995975 [patent_app_country] => US [patent_app_date] => 2021-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3834 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17995975 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/995975
Downhole ignition assembly Apr 14, 2021 Issued
Array ( [id] => 16978295 [patent_doc_number] => 20210222532 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-07-22 [patent_title] => METHOD FOR OPTIMIZATION OF HUFF-N-PUFF GAS INJECTION IN HYDROCARBON RESERVOIRS [patent_app_type] => utility [patent_app_number] => 17/221073 [patent_app_country] => US [patent_app_date] => 2021-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6368 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 250 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17221073 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/221073
Method for optimization of huff-n-puff gas injection in hydrocarbon reservoirs Apr 1, 2021 Issued
Array ( [id] => 17126856 [patent_doc_number] => 20210301625 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-30 [patent_title] => ESTIMATION SYSTEM, ESTIMATION DEVICE, AND ESTIMATION METHOD [patent_app_type] => utility [patent_app_number] => 17/216876 [patent_app_country] => US [patent_app_date] => 2021-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9811 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17216876 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/216876
Estimation system, estimation device, and estimation method Mar 29, 2021 Issued
Array ( [id] => 18135116 [patent_doc_number] => 11560773 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-01-24 [patent_title] => Drill string mountable wellbore cleanup apparatus and method [patent_app_type] => utility [patent_app_number] => 17/215834 [patent_app_country] => US [patent_app_date] => 2021-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 45 [patent_no_of_words] => 8679 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17215834 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/215834
Drill string mountable wellbore cleanup apparatus and method Mar 28, 2021 Issued
Array ( [id] => 17030180 [patent_doc_number] => 11091987 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2021-08-17 [patent_title] => Perforation gun system [patent_app_type] => utility [patent_app_number] => 17/201552 [patent_app_country] => US [patent_app_date] => 2021-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 41 [patent_no_of_words] => 6915 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [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] => 17201552 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/201552
Perforation gun system Mar 14, 2021 Issued
Array ( [id] => 18216970 [patent_doc_number] => 11591896 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-02-28 [patent_title] => Efficient and intelligent steering drilling system and drilling method [patent_app_type] => utility [patent_app_number] => 17/777111 [patent_app_country] => US [patent_app_date] => 2021-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 4504 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 393 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17777111 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/777111
Efficient and intelligent steering drilling system and drilling method Mar 8, 2021 Issued
Array ( [id] => 17082747 [patent_doc_number] => 20210277753 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-09 [patent_title] => Orienting Sub [patent_app_type] => utility [patent_app_number] => 17/193412 [patent_app_country] => US [patent_app_date] => 2021-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6641 [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] => 17193412 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/193412
Orienting sub Mar 4, 2021 Issued
Array ( [id] => 18045301 [patent_doc_number] => 11519243 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-12-06 [patent_title] => Method and apparatus for dropping a pump down plug or ball [patent_app_type] => utility [patent_app_number] => 17/192200 [patent_app_country] => US [patent_app_date] => 2021-03-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 29 [patent_figures_cnt] => 47 [patent_no_of_words] => 7216 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 273 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17192200 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/192200
Method and apparatus for dropping a pump down plug or ball Mar 3, 2021 Issued
Array ( [id] => 17838382 [patent_doc_number] => 20220275687 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-01 [patent_title] => REAL-TIME POLYCRYSTALLINE DIAMOND COMPACT (PDC) BIT CONDITION EVALUATION USING ACOUSTIC EMISSION TECHNOLOGY DURING DOWNHOLE DRILLING [patent_app_type] => utility [patent_app_number] => 17/187703 [patent_app_country] => US [patent_app_date] => 2021-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15369 [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] => 17187703 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/187703
Real-time polycrystalline diamond compact (PDC) bit condition evaluation using acoustic emission technology during downhole drilling Feb 25, 2021 Issued
Array ( [id] => 18267147 [patent_doc_number] => 20230088389 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-23 [patent_title] => Wash Tool [patent_app_type] => utility [patent_app_number] => 17/802037 [patent_app_country] => US [patent_app_date] => 2021-02-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6597 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17802037 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/802037
Wash tool Feb 24, 2021 Issued
17/182420 PERFORATING GUN AND METHOD OF USING SAME Feb 22, 2021 Abandoned
Array ( [id] => 18306704 [patent_doc_number] => 20230110604 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-13 [patent_title] => POWERED CLAMP CLOSURE MECHANISM [patent_app_type] => utility [patent_app_number] => 17/904630 [patent_app_country] => US [patent_app_date] => 2021-02-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3214 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17904630 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/904630
POWERED CLAMP CLOSURE MECHANISM Feb 18, 2021 Abandoned
Array ( [id] => 18461891 [patent_doc_number] => 11686176 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-06-27 [patent_title] => Circulation sleeve and method [patent_app_type] => utility [patent_app_number] => 17/178745 [patent_app_country] => US [patent_app_date] => 2021-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 3184 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17178745 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/178745
Circulation sleeve and method Feb 17, 2021 Issued
Array ( [id] => 18269869 [patent_doc_number] => 20230091111 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-23 [patent_title] => Spacer Segment and A Spacer [patent_app_type] => utility [patent_app_number] => 17/904557 [patent_app_country] => US [patent_app_date] => 2021-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8412 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [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] => 17904557 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/904557
Spacer segment and a spacer Feb 17, 2021 Issued
Array ( [id] => 17792824 [patent_doc_number] => 20220251915 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-11 [patent_title] => Anchor Slip Assembly With Independently Deployable Wedges [patent_app_type] => utility [patent_app_number] => 17/171070 [patent_app_country] => US [patent_app_date] => 2021-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7455 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17171070 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/171070
Anchor slip assembly with independently deployable wedges Feb 8, 2021 Issued
Array ( [id] => 17792815 [patent_doc_number] => 20220251906 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-11 [patent_title] => MEASURING LOAD ON A DRILLING DERRICK DURING OPERATIONS [patent_app_type] => utility [patent_app_number] => 17/170731 [patent_app_country] => US [patent_app_date] => 2021-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4454 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17170731 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/170731
MEASURING LOAD ON A DRILLING DERRICK DURING OPERATIONS Feb 7, 2021 Abandoned
Array ( [id] => 17792823 [patent_doc_number] => 20220251914 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-11 [patent_title] => High-Expansion Anchor Slip Assembly For Well Tool [patent_app_type] => utility [patent_app_number] => 17/170286 [patent_app_country] => US [patent_app_date] => 2021-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6821 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [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] => 17170286 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/170286
High-expansion anchor slip assembly for well tool Feb 7, 2021 Issued
Array ( [id] => 18505104 [patent_doc_number] => 11702909 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-07-18 [patent_title] => System with a ground drilling device and an input device and a method for controlling an operation of a ground drilling device [patent_app_type] => utility [patent_app_number] => 17/164361 [patent_app_country] => US [patent_app_date] => 2021-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 10502 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17164361 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/164361
System with a ground drilling device and an input device and a method for controlling an operation of a ground drilling device Jan 31, 2021 Issued
Array ( [id] => 18505104 [patent_doc_number] => 11702909 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-07-18 [patent_title] => System with a ground drilling device and an input device and a method for controlling an operation of a ground drilling device [patent_app_type] => utility [patent_app_number] => 17/164361 [patent_app_country] => US [patent_app_date] => 2021-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 10502 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17164361 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/164361
System with a ground drilling device and an input device and a method for controlling an operation of a ground drilling device Jan 31, 2021 Issued
Array ( [id] => 18505104 [patent_doc_number] => 11702909 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-07-18 [patent_title] => System with a ground drilling device and an input device and a method for controlling an operation of a ground drilling device [patent_app_type] => utility [patent_app_number] => 17/164361 [patent_app_country] => US [patent_app_date] => 2021-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 10502 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17164361 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/164361
System with a ground drilling device and an input device and a method for controlling an operation of a ground drilling device Jan 31, 2021 Issued
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