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] => 20085839 [patent_doc_number] => 20250215775 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-03 [patent_title] => RESISTIVITY INVERSION INTERPRETATION BY AI ASSISTANT DURING GEOSTEERING JOB [patent_app_type] => utility [patent_app_number] => 18/402190 [patent_app_country] => US [patent_app_date] => 2024-01-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1142 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18402190 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/402190
RESISTIVITY INVERSION INTERPRETATION BY AI ASSISTANT DURING GEOSTEERING JOB Jan 1, 2024 Pending
Array ( [id] => 19266005 [patent_doc_number] => 20240209704 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-27 [patent_title] => Direct-to-Gun Setting Tool [patent_app_type] => utility [patent_app_number] => 18/392290 [patent_app_country] => US [patent_app_date] => 2023-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9173 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18392290 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/392290
Direct-to-gun setting tool Dec 20, 2023 Issued
Array ( [id] => 19098467 [patent_doc_number] => 20240117695 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-11 [patent_title] => PNEUMATIC TRANSPORT SYSTEM AND METHOD FOR WELLBORE OPERATIONS [patent_app_type] => utility [patent_app_number] => 18/542044 [patent_app_country] => US [patent_app_date] => 2023-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7308 [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] => 18542044 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/542044
Pneumatic transport system and method for wellbore operations Dec 14, 2023 Issued
Array ( [id] => 20842232 [patent_doc_number] => 20260201781 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-07-16 [patent_title] => ALIGNMENT SUB WITH CLAMP LOCK MECHANISM [patent_app_type] => utility [patent_app_number] => 19/136124 [patent_app_country] => US [patent_app_date] => 2023-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2228 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19136124 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/136124
ALIGNMENT SUB WITH CLAMP LOCK MECHANISM Nov 29, 2023 Pending
Array ( [id] => 19731492 [patent_doc_number] => 12209483 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-28 [patent_title] => Apparatus, system and method for regulating a control mechanism of a well [patent_app_type] => utility [patent_app_number] => 18/517584 [patent_app_country] => US [patent_app_date] => 2023-11-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 35 [patent_no_of_words] => 20892 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 185 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18517584 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/517584
Apparatus, system and method for regulating a control mechanism of a well Nov 21, 2023 Issued
Array ( [id] => 19676477 [patent_doc_number] => 12188329 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-07 [patent_title] => Apparatus, system and method for regulating a control mechanism of a well [patent_app_type] => utility [patent_app_number] => 18/517602 [patent_app_country] => US [patent_app_date] => 2023-11-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 35 [patent_no_of_words] => 20890 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 237 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18517602 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/517602
Apparatus, system and method for regulating a control mechanism of a well Nov 21, 2023 Issued
Array ( [id] => 20187529 [patent_doc_number] => 12398637 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-26 [patent_title] => Identifying bit wear and justifying bit trip [patent_app_type] => utility [patent_app_number] => 18/514223 [patent_app_country] => US [patent_app_date] => 2023-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 3335 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18514223 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/514223
Identifying bit wear and justifying bit trip Nov 19, 2023 Issued
Array ( [id] => 19668069 [patent_doc_number] => 12180803 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-31 [patent_title] => Methods and systems for a frac plug [patent_app_type] => utility [patent_app_number] => 18/510282 [patent_app_country] => US [patent_app_date] => 2023-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 7557 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18510282 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/510282
Methods and systems for a frac plug Nov 14, 2023 Issued
Array ( [id] => 18955902 [patent_doc_number] => 20240044229 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-08 [patent_title] => SLIDE-IN FRAME FOR SHAPED CHARGES [patent_app_type] => utility [patent_app_number] => 18/490453 [patent_app_country] => US [patent_app_date] => 2023-10-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3756 [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] => 18490453 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/490453
Slide-in frame for shaped charges Oct 18, 2023 Issued
Array ( [id] => 19676475 [patent_doc_number] => 12188327 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-07 [patent_title] => Method and apparatus for dropping a pump down plug or ball [patent_app_type] => utility [patent_app_number] => 18/487507 [patent_app_country] => US [patent_app_date] => 2023-10-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 29 [patent_figures_cnt] => 47 [patent_no_of_words] => 7269 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 275 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18487507 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/487507
Method and apparatus for dropping a pump down plug or ball Oct 15, 2023 Issued
Array ( [id] => 20180041 [patent_doc_number] => 20250263999 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-21 [patent_title] => CONVERTIBLE SLICKLINE STUFFING BOX [patent_app_type] => utility [patent_app_number] => 19/105042 [patent_app_country] => US [patent_app_date] => 2023-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3505 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 19105042 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/105042
Convertible slickline stuffing box Sep 25, 2023 Issued
Array ( [id] => 18879848 [patent_doc_number] => 20240003217 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-04 [patent_title] => PRINTED ANNULAR METAL-TO-METAL SEAL [patent_app_type] => utility [patent_app_number] => 18/369941 [patent_app_country] => US [patent_app_date] => 2023-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5596 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 18369941 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/369941
PRINTED ANNULAR METAL-TO-METAL SEAL Sep 18, 2023 Abandoned
Array ( [id] => 19847420 [patent_doc_number] => 20250092771 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-20 [patent_title] => FLOW CONTROL DEVICES FOR HYDROGEN PRODUCTION FROM WELLBORE [patent_app_type] => utility [patent_app_number] => 18/369421 [patent_app_country] => US [patent_app_date] => 2023-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8827 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18369421 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/369421
Flow control devices for hydrogen production from wellbore Sep 17, 2023 Issued
Array ( [id] => 20357826 [patent_doc_number] => 12473814 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-18 [patent_title] => Supervisory control system for a well construction rig [patent_app_type] => utility [patent_app_number] => 18/466862 [patent_app_country] => US [patent_app_date] => 2023-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 20583 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 369 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18466862 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/466862
Supervisory control system for a well construction rig Sep 13, 2023 Issued
Array ( [id] => 19832917 [patent_doc_number] => 20250084703 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-13 [patent_title] => MODULAR ROTARY STEERABLE SYSTEM [patent_app_type] => utility [patent_app_number] => 18/463687 [patent_app_country] => US [patent_app_date] => 2023-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4359 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 39 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18463687 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/463687
Modular rotary steerable system Sep 7, 2023 Issued
Array ( [id] => 19962123 [patent_doc_number] => 12331612 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-17 [patent_title] => Shifting sleeve tieback seal system [patent_app_type] => utility [patent_app_number] => 18/241594 [patent_app_country] => US [patent_app_date] => 2023-09-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 4856 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18241594 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/241594
Shifting sleeve tieback seal system Aug 31, 2023 Issued
Array ( [id] => 20272505 [patent_doc_number] => 12442279 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-14 [patent_title] => Multi-stage plunger hydrocarbon lifting [patent_app_type] => utility [patent_app_number] => 18/240001 [patent_app_country] => US [patent_app_date] => 2023-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 1127 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 8 [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] => 18240001 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/240001
Multi-stage plunger hydrocarbon lifting Aug 29, 2023 Issued
Array ( [id] => 19492081 [patent_doc_number] => 12110780 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-08 [patent_title] => Method and apparatus for magnetic ranging while drilling [patent_app_type] => utility [patent_app_number] => 18/457139 [patent_app_country] => US [patent_app_date] => 2023-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 5547 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18457139 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/457139
Method and apparatus for magnetic ranging while drilling Aug 27, 2023 Issued
Array ( [id] => 20780986 [patent_doc_number] => 20260169182 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-06-18 [patent_title] => A METHOD OF DETERMINING A SMOOTH SEISMIC VELOCITY MODEL USING SHAPING REGULARIZATION AND KINEMATIC EQUIVALENCE [patent_app_type] => utility [patent_app_number] => 18/718244 [patent_app_country] => US [patent_app_date] => 2023-08-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4198 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18718244 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/718244
A METHOD OF DETERMINING A SMOOTH SEISMIC VELOCITY MODEL USING SHAPING REGULARIZATION AND KINEMATIC EQUIVALENCE Aug 24, 2023 Pending
Array ( [id] => 19004275 [patent_doc_number] => 20240068346 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-29 [patent_title] => PENETRATOR AND DISPENSERS AND METHODS OF USE [patent_app_type] => utility [patent_app_number] => 18/456003 [patent_app_country] => US [patent_app_date] => 2023-08-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7254 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18456003 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/456003
Penetrator and dispensers and methods of use Aug 24, 2023 Issued
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