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] => 20658205 [patent_doc_number] => 20260110245 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-04-23 [patent_title] => DOWNHOLE INSTRUMENT WITH ANGULAR RATE SENSOR [patent_app_type] => utility [patent_app_number] => 19/423343 [patent_app_country] => US [patent_app_date] => 2025-12-17 [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] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19423343 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/423343
DOWNHOLE INSTRUMENT WITH ANGULAR RATE SENSOR Dec 16, 2025 Issued
Array ( [id] => 20569097 [patent_doc_number] => 20260063018 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-03-05 [patent_title] => PERFORATING GUN WITH SELF-ORIENTING CHARGE CARTRIDGE [patent_app_type] => utility [patent_app_number] => 19/377639 [patent_app_country] => US [patent_app_date] => 2025-11-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8660 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19377639 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/377639
PERFORATING GUN WITH SELF-ORIENTING CHARGE CARTRIDGE Nov 2, 2025 Pending
Array ( [id] => 20826852 [patent_doc_number] => 12680410 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-07-14 [patent_title] => Electrically-actuated blow-out preventer [patent_app_type] => utility [patent_app_number] => 19/309968 [patent_app_country] => US [patent_app_date] => 2025-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3464 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 196 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19309968 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/309968
Electrically-actuated blow-out preventer Aug 25, 2025 Issued
Array ( [id] => 20519221 [patent_doc_number] => 20260043325 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-12 [patent_title] => DYNAMIC LOAD RESISTANT DRILLING SYSTEM [patent_app_type] => utility [patent_app_number] => 19/291942 [patent_app_country] => US [patent_app_date] => 2025-08-06 [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] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19291942 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/291942
DYNAMIC LOAD RESISTANT DRILLING SYSTEM Aug 5, 2025 Pending
Array ( [id] => 20511921 [patent_doc_number] => 20260036022 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-05 [patent_title] => JOYSTICK SAFETY SWITCH [patent_app_type] => utility [patent_app_number] => 19/291506 [patent_app_country] => US [patent_app_date] => 2025-08-05 [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] => -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] => 19291506 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/291506
JOYSTICK SAFETY SWITCH Aug 4, 2025 Pending
Array ( [id] => 20511920 [patent_doc_number] => 20260036021 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-05 [patent_title] => METHOD OF RETROFITTING A SERVICE RIG [patent_app_type] => utility [patent_app_number] => 19/291369 [patent_app_country] => US [patent_app_date] => 2025-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5826 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 19291369 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/291369
METHOD OF RETROFITTING A SERVICE RIG Aug 4, 2025 Pending
Array ( [id] => 20486421 [patent_doc_number] => 20260022619 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-22 [patent_title] => METHOD FOR CEMENTATION IN CARBONATE ROCKS UNDER SEVERE CIRCULATION LOSS CONDITIONS [patent_app_type] => utility [patent_app_number] => 19/265750 [patent_app_country] => US [patent_app_date] => 2025-07-10 [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] => -4 [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] => 19265750 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/265750
METHOD FOR CEMENTATION IN CARBONATE ROCKS UNDER SEVERE CIRCULATION LOSS CONDITIONS Jul 9, 2025 Pending
Array ( [id] => 20708364 [patent_doc_number] => 20260132692 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-05-14 [patent_title] => FORMATION TESTING WHILE DRILLING: ROBUST AND ACCURATE PORE PRESSURE MEASUREMENT [patent_app_type] => utility [patent_app_number] => 19/215980 [patent_app_country] => US [patent_app_date] => 2025-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6997 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 190 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19215980 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/215980
Formation testing while drilling: robust and accurate pore pressure measurement May 21, 2025 Issued
Array ( [id] => 20364656 [patent_doc_number] => 20250354468 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-20 [patent_title] => COMBINED WELL SYSTEM AND METHOD FOR ENHANCED PRODUCTION [patent_app_type] => utility [patent_app_number] => 19/212105 [patent_app_country] => US [patent_app_date] => 2025-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11665 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19212105 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/212105
COMBINED WELL SYSTEM AND METHOD FOR ENHANCED PRODUCTION May 18, 2025 Pending
Array ( [id] => 20563212 [patent_doc_number] => 12565816 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-03 [patent_title] => Selectively activated friction reduction tool and method [patent_app_type] => utility [patent_app_number] => 19/208083 [patent_app_country] => US [patent_app_date] => 2025-05-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2328 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 267 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19208083 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/208083
Selectively activated friction reduction tool and method May 13, 2025 Issued
Array ( [id] => 20672347 [patent_doc_number] => 12612851 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-04-28 [patent_title] => Systems and methods for determining depth-dependent drilling parameter limits [patent_app_type] => utility [patent_app_number] => 19/207448 [patent_app_country] => US [patent_app_date] => 2025-05-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 9119 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 320 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19207448 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/207448
Systems and methods for determining depth-dependent drilling parameter limits May 13, 2025 Issued
Array ( [id] => 20818912 [patent_doc_number] => 12674377 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-07-07 [patent_title] => Downhole tool [patent_app_type] => utility [patent_app_number] => 19/184990 [patent_app_country] => US [patent_app_date] => 2025-04-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 25 [patent_no_of_words] => 8368 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 291 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19184990 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/184990
Downhole tool Apr 20, 2025 Issued
Array ( [id] => 20350350 [patent_doc_number] => 20250347202 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-13 [patent_title] => Perforating Gun and Method of Using Same [patent_app_type] => utility [patent_app_number] => 19/182052 [patent_app_country] => US [patent_app_date] => 2025-04-17 [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] => 38 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19182052 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/182052
Perforating Gun and Method of Using Same Apr 16, 2025 Pending
Array ( [id] => 20414596 [patent_doc_number] => 12497869 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-16 [patent_title] => Perforating gun string including switch counter [patent_app_type] => utility [patent_app_number] => 19/052564 [patent_app_country] => US [patent_app_date] => 2025-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 1309 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19052564 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/052564
Perforating gun string including switch counter Feb 12, 2025 Issued
Array ( [id] => 20100791 [patent_doc_number] => 20250230727 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-17 [patent_title] => APPARATUS, SYSTEM AND PROCESS FOR REGULATING A CONTROL MECHANISM OF A WELL [patent_app_type] => utility [patent_app_number] => 19/019128 [patent_app_country] => US [patent_app_date] => 2025-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15354 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -37 [patent_words_short_claim] => 32 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19019128 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/019128
APPARATUS, SYSTEM AND PROCESS FOR REGULATING A CONTROL MECHANISM OF A WELL Jan 12, 2025 Pending
Array ( [id] => 20093949 [patent_doc_number] => 20250223885 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-10 [patent_title] => APPARATUS, SYSTEM AND PROCESS FOR REGULATING A CONTROL MECHANISM OF A WELL [patent_app_type] => utility [patent_app_number] => 19/019122 [patent_app_country] => US [patent_app_date] => 2025-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15349 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [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] => 19019122 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/019122
APPARATUS, SYSTEM AND PROCESS FOR REGULATING A CONTROL MECHANISM OF A WELL Jan 12, 2025 Abandoned
Array ( [id] => 20093950 [patent_doc_number] => 20250223886 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-10 [patent_title] => APPARATUS, SYSTEM AND PROCESS FOR REGULATING A CONTROL MECHANISM OF A WELL [patent_app_type] => utility [patent_app_number] => 19/019137 [patent_app_country] => US [patent_app_date] => 2025-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15429 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [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] => 19019137 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/019137
APPARATUS, SYSTEM AND PROCESS FOR REGULATING A CONTROL MECHANISM OF A WELL Jan 12, 2025 Abandoned
Array ( [id] => 20453533 [patent_doc_number] => 12516585 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-06 [patent_title] => Compact downhole tool [patent_app_type] => utility [patent_app_number] => 19/015248 [patent_app_country] => US [patent_app_date] => 2025-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 4509 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [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] => 19015248 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/015248
Compact downhole tool Jan 8, 2025 Issued
Array ( [id] => 20623004 [patent_doc_number] => 12590505 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-31 [patent_title] => Compact downhole tool [patent_app_type] => utility [patent_app_number] => 19/015276 [patent_app_country] => US [patent_app_date] => 2025-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 4513 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 187 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19015276 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/015276
Compact downhole tool Jan 8, 2025 Issued
Array ( [id] => 20008160 [patent_doc_number] => 20250146382 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-08 [patent_title] => COMPACT DOWNHOLE TOOL [patent_app_type] => utility [patent_app_number] => 19/015337 [patent_app_country] => US [patent_app_date] => 2025-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4504 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19015337 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/015337
COMPACT DOWNHOLE TOOL Jan 8, 2025 Pending
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