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] => 18102912 [patent_doc_number] => 11542793 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-01-03 [patent_title] => Convertible and addressable switch assembly for wellbore operations [patent_app_type] => utility [patent_app_number] => 17/736629 [patent_app_country] => US [patent_app_date] => 2022-05-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 14783 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17736629 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/736629
Convertible and addressable switch assembly for wellbore operations May 3, 2022 Issued
Array ( [id] => 17792825 [patent_doc_number] => 20220251916 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-11 [patent_title] => PRESSURE-RETAINING CONNECTOR [patent_app_type] => utility [patent_app_number] => 17/733100 [patent_app_country] => US [patent_app_date] => 2022-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16931 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 327 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17733100 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/733100
Pressure-retaining connector Apr 28, 2022 Issued
Array ( [id] => 20594145 [patent_doc_number] => 12577851 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-17 [patent_title] => Wellbore flow control valve and method [patent_app_type] => utility [patent_app_number] => 18/552638 [patent_app_country] => US [patent_app_date] => 2022-04-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 1199 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18552638 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/552638
Wellbore flow control valve and method Apr 19, 2022 Issued
Array ( [id] => 17946887 [patent_doc_number] => 20220333906 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-20 [patent_title] => SLIDE-IN FRAME FOR SHAPED CHARGES [patent_app_type] => utility [patent_app_number] => 17/659229 [patent_app_country] => US [patent_app_date] => 2022-04-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3741 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 18 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17659229 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/659229
Slide-in frame for shaped charges Apr 13, 2022 Issued
Array ( [id] => 17721018 [patent_doc_number] => 20220213738 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-07 [patent_title] => System and Method for Centralizing a Tool in a Wellbore [patent_app_type] => utility [patent_app_number] => 17/700774 [patent_app_country] => US [patent_app_date] => 2022-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5321 [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] => 17700774 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/700774
System and method for centralizing a tool in a wellbore Mar 21, 2022 Issued
Array ( [id] => 19884564 [patent_doc_number] => 12270260 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-08 [patent_title] => Riser clamp [patent_app_type] => utility [patent_app_number] => 18/283212 [patent_app_country] => US [patent_app_date] => 2022-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 5986 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18283212 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/283212
Riser clamp Mar 21, 2022 Issued
Array ( [id] => 17688539 [patent_doc_number] => 20220195831 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-23 [patent_title] => Uphole End for a Compression-Set Straddle Packer [patent_app_type] => utility [patent_app_number] => 17/694973 [patent_app_country] => US [patent_app_date] => 2022-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3731 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17694973 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/694973
Uphole end for a compression-set straddle packer Mar 14, 2022 Issued
Array ( [id] => 17705331 [patent_doc_number] => 20220205337 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-30 [patent_title] => APPARATUS, SYSTEM AND PROCESS FOR REGULATING A CONTROL MECHANISM OF A WELL [patent_app_type] => utility [patent_app_number] => 17/654638 [patent_app_country] => US [patent_app_date] => 2022-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 22296 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17654638 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/654638
APPARATUS, SYSTEM AND PROCESS FOR REGULATING A CONTROL MECHANISM OF A WELL Mar 13, 2022 Abandoned
Array ( [id] => 20272491 [patent_doc_number] => 12442265 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-14 [patent_title] => Diffuser and filter assemblies with magnetic features [patent_app_type] => utility [patent_app_number] => 18/281713 [patent_app_country] => US [patent_app_date] => 2022-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 24 [patent_no_of_words] => 0 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18281713 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/281713
Diffuser and filter assemblies with magnetic features Mar 10, 2022 Issued
Array ( [id] => 19091462 [patent_doc_number] => 11952898 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-09 [patent_title] => Atmospheric asteroid miner/packager [patent_app_type] => utility [patent_app_number] => 18/550110 [patent_app_country] => US [patent_app_date] => 2022-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 3019 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [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] => 18550110 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/550110
Atmospheric asteroid miner/packager Mar 8, 2022 Issued
Array ( [id] => 18613014 [patent_doc_number] => 20230279750 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-07 [patent_title] => SEGMENTED EXPANSION CONE, METHOD AND SYSTEM [patent_app_type] => utility [patent_app_number] => 17/686699 [patent_app_country] => US [patent_app_date] => 2022-03-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2423 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17686699 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/686699
Segmented expansion cone, method and system Mar 3, 2022 Issued
Array ( [id] => 17976040 [patent_doc_number] => 11492891 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-11-08 [patent_title] => Method and apparatus of controlling drilling for rock burst prevention in coal mine roadway [patent_app_type] => utility [patent_app_number] => 17/673544 [patent_app_country] => US [patent_app_date] => 2022-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 7201 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 310 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17673544 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/673544
Method and apparatus of controlling drilling for rock burst prevention in coal mine roadway Feb 15, 2022 Issued
Array ( [id] => 18538123 [patent_doc_number] => 20230243226 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-03 [patent_title] => SPOOL ASSEMBLIES AND RELATED METHODS FOR FLUIDLY CONNECTING WELLHEADS [patent_app_type] => utility [patent_app_number] => 17/592051 [patent_app_country] => US [patent_app_date] => 2022-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3925 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17592051 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/592051
Spool assemblies and related methods for fluidly connecting wellheads Feb 2, 2022 Issued
Array ( [id] => 19181473 [patent_doc_number] => 11988057 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-05-21 [patent_title] => Downhole wireline tool string [patent_app_type] => utility [patent_app_number] => 17/582383 [patent_app_country] => US [patent_app_date] => 2022-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 11 [patent_no_of_words] => 4727 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 259 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17582383 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/582383
Downhole wireline tool string Jan 23, 2022 Issued
Array ( [id] => 17721046 [patent_doc_number] => 20220213766 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-07 [patent_title] => NON-EXPLOSIVE CASING PERFORATING DEVICES AND METHODS [patent_app_type] => utility [patent_app_number] => 17/566107 [patent_app_country] => US [patent_app_date] => 2021-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5262 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 17566107 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/566107
Non-explosive casing perforating devices and methods Dec 29, 2021 Issued
Array ( [id] => 19258497 [patent_doc_number] => 12018545 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-25 [patent_title] => Single slip frac tool [patent_app_type] => utility [patent_app_number] => 17/565199 [patent_app_country] => US [patent_app_date] => 2021-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 3975 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17565199 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/565199
Single slip frac tool Dec 28, 2021 Issued
Array ( [id] => 17713953 [patent_doc_number] => 11377938 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-07-05 [patent_title] => Perforations using fluids containing hollow spheres [patent_app_type] => utility [patent_app_number] => 17/558107 [patent_app_country] => US [patent_app_date] => 2021-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 3828 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17558107 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/558107
Perforations using fluids containing hollow spheres Dec 20, 2021 Issued
Array ( [id] => 19063520 [patent_doc_number] => 11942781 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-26 [patent_title] => Power management at a wellsite [patent_app_type] => utility [patent_app_number] => 17/555722 [patent_app_country] => US [patent_app_date] => 2021-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 33333 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 281 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17555722 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/555722
Power management at a wellsite Dec 19, 2021 Issued
Array ( [id] => 17897684 [patent_doc_number] => 20220307346 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-29 [patent_title] => OPEN HOLE MULTI-ZONE SINGLE TRIP COMPLETION SYSTEM [patent_app_type] => utility [patent_app_number] => 17/545182 [patent_app_country] => US [patent_app_date] => 2021-12-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4640 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17545182 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/545182
Open hole multi-zone single trip completion system Dec 7, 2021 Issued
Array ( [id] => 19242406 [patent_doc_number] => 12012829 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-06-18 [patent_title] => Perforating gun and method of using same [patent_app_type] => utility [patent_app_number] => 17/454777 [patent_app_country] => US [patent_app_date] => 2021-11-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 14 [patent_no_of_words] => 6938 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17454777 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/454777
Perforating gun and method of using same Nov 11, 2021 Issued
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