Search

David P. Carroll

Examiner (ID: 2384, Phone: (571)272-4808 , Office: P/3676 )

Most Active Art Unit
3674
Art Unit(s)
3674, 3676, 3672
Total Applications
796
Issued Applications
612
Pending Applications
54
Abandoned Applications
143

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20420762 [patent_doc_number] => 20250382847 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-18 [patent_title] => BYPASS TOOL FOR USE WITH A TUBING ANCHOR [patent_app_type] => utility [patent_app_number] => 19/237839 [patent_app_country] => US [patent_app_date] => 2025-06-13 [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] => -18 [patent_words_short_claim] => 34 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19237839 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/237839
BYPASS TOOL FOR USE WITH A TUBING ANCHOR Jun 12, 2025 Abandoned
Array ( [id] => 20536258 [patent_doc_number] => 12553325 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-17 [patent_title] => Method of controlling tensile-splitting and hydro-shearing parameters during completion of enhanced geothermal system wells [patent_app_type] => utility [patent_app_number] => 19/226414 [patent_app_country] => US [patent_app_date] => 2025-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 55 [patent_figures_cnt] => 79 [patent_no_of_words] => 29917 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 200 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19226414 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/226414
Method of controlling tensile-splitting and hydro-shearing parameters during completion of enhanced geothermal system wells Jun 2, 2025 Issued
Array ( [id] => 20569081 [patent_doc_number] => 20260063002 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-03-05 [patent_title] => COOLING OF ELECTROCRUSHING DRILL ASSEMBLY [patent_app_type] => utility [patent_app_number] => 19/214222 [patent_app_country] => US [patent_app_date] => 2025-05-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8107 [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] => 19214222 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/214222
Cooling of electrocrushing drill assembly May 20, 2025 Issued
Array ( [id] => 20151027 [patent_doc_number] => 20250250865 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-07 [patent_title] => METHODS AND APPARATUS FOR BITLESS DRILLING [patent_app_type] => utility [patent_app_number] => 19/191078 [patent_app_country] => US [patent_app_date] => 2025-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15905 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19191078 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/191078
METHODS AND APPARATUS FOR BITLESS DRILLING Apr 27, 2025 Pending
Array ( [id] => 20549276 [patent_doc_number] => 12560060 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-24 [patent_title] => Downhole pump top plunger adapter with improved sand handling capability [patent_app_type] => utility [patent_app_number] => 19/189515 [patent_app_country] => US [patent_app_date] => 2025-04-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 13 [patent_no_of_words] => 1186 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 457 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19189515 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/189515
Downhole pump top plunger adapter with improved sand handling capability Apr 24, 2025 Issued
Array ( [id] => 20694552 [patent_doc_number] => 20260125958 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-05-07 [patent_title] => DISPLACEMENT OF A TUBULAR STRING THROUGH A WELLBORE [patent_app_type] => utility [patent_app_number] => 19/182258 [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] => 4472 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19182258 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/182258
DISPLACEMENT OF A TUBULAR STRING THROUGH A WELLBORE Apr 16, 2025 Pending
Array ( [id] => 20295551 [patent_doc_number] => 20250320794 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-16 [patent_title] => Electro-Hydraulic Tubing Punch [patent_app_type] => utility [patent_app_number] => 19/094520 [patent_app_country] => US [patent_app_date] => 2025-03-28 [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] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19094520 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/094520
Electro-Hydraulic Tubing Punch Mar 27, 2025 Abandoned
Array ( [id] => 20715847 [patent_doc_number] => 12631088 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-19 [patent_title] => Back pressure valve for carbon capture systems [patent_app_type] => utility [patent_app_number] => 19/081112 [patent_app_country] => US [patent_app_date] => 2025-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 2007 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19081112 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/081112
Back pressure valve for carbon capture systems Mar 16, 2025 Issued
Array ( [id] => 20921277 [patent_doc_number] => 12716326 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-08-25 [patent_title] => Deep-set insert valve using magnetic coupling [patent_app_type] => utility [patent_app_number] => 19/079242 [patent_app_country] => US [patent_app_date] => 2025-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 4774 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 236 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19079242 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/079242
Deep-Set Insert Valve Using Magnetic Coupling Mar 12, 2025 Pending
Array ( [id] => 20929312 [patent_doc_number] => 12723480 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-09-01 [patent_title] => Downhole system for conveying an explosive tool within a wellbore and reducing damage to other tools of the downhole system [patent_app_type] => utility [patent_app_number] => 19/053174 [patent_app_country] => US [patent_app_date] => 2025-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 47 [patent_figures_cnt] => 98 [patent_no_of_words] => 38116 [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] => 19053174 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/053174
DOWNHOLE SYSTEM FOR CONVEYING AN EXPLOSIVE TOOL WITHIN A WELLBORE AND REDUCING DAMAGE TO OTHER TOOLS OF THE DOWNHOLE SYSTEM Feb 12, 2025 Pending
Array ( [id] => 20555885 [patent_doc_number] => 20260055665 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-26 [patent_title] => PILOTING PULSED POWER DRILLING USING A MULTI-ACTUATOR BASED FLOATING ELECTRODE [patent_app_type] => utility [patent_app_number] => 19/046255 [patent_app_country] => US [patent_app_date] => 2025-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8288 [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] => 19046255 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/046255
Piloting pulsed power drilling using a multi-actuator based floating electrode Feb 4, 2025 Issued
Array ( [id] => 20136681 [patent_doc_number] => 20250243725 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-31 [patent_title] => Wellhead Attachment Device [patent_app_type] => utility [patent_app_number] => 19/018586 [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] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19018586 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/018586
Wellhead Attachment Device Jan 12, 2025 Issued
Array ( [id] => 20865890 [patent_doc_number] => 12692772 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-07-28 [patent_title] => Completing a wellbore with multiple electrical submersible pump docking stations [patent_app_type] => utility [patent_app_number] => 19/008267 [patent_app_country] => US [patent_app_date] => 2025-01-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 10258 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19008267 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/008267
COMPLETING A WELLBORE WITH MULTIPLE ELECTRICAL SUBMERSIBLE PUMP DOCKING STATIONS Jan 1, 2025 Issued
Array ( [id] => 19969487 [patent_doc_number] => 12338077 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-06-24 [patent_title] => Multipurpose conveyor system [patent_app_type] => utility [patent_app_number] => 18/961299 [patent_app_country] => US [patent_app_date] => 2024-11-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 0 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18961299 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/961299
Multipurpose conveyor system Nov 25, 2024 Issued
Array ( [id] => 20025545 [patent_doc_number] => 20250163767 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-22 [patent_title] => PISTON-DIAPHRAGM PUMP FOR DRILLING OPERATIONS [patent_app_type] => utility [patent_app_number] => 18/949812 [patent_app_country] => US [patent_app_date] => 2024-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16589 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [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] => 18949812 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/949812
PISTON-DIAPHRAGM PUMP FOR DRILLING OPERATIONS Nov 14, 2024 Pending
Array ( [id] => 20772036 [patent_doc_number] => 12655699 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-06-16 [patent_title] => Dissolvable lock [patent_app_type] => utility [patent_app_number] => 18/922148 [patent_app_country] => US [patent_app_date] => 2024-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 0 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 4 [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] => 18922148 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/922148
Dissolvable lock Oct 20, 2024 Issued
Array ( [id] => 19817386 [patent_doc_number] => 20250075593 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-06 [patent_title] => Method of Controlling Tensile-Splitting and Hydro-Shearing Parameters During Completion of Enhanced Geothermal System Wells [patent_app_type] => utility [patent_app_number] => 18/818873 [patent_app_country] => US [patent_app_date] => 2024-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 30529 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18818873 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/818873
Method of controlling tensile-splitting and hydro-shearing parameters during completion of enhanced geothermal system wells Aug 28, 2024 Issued
Array ( [id] => 20453538 [patent_doc_number] => 12516590 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-06 [patent_title] => Downhole cleaning tool and method [patent_app_type] => utility [patent_app_number] => 18/819912 [patent_app_country] => US [patent_app_date] => 2024-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 19 [patent_no_of_words] => 4722 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18819912 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/819912
Downhole cleaning tool and method Aug 28, 2024 Issued
Array ( [id] => 20527741 [patent_doc_number] => 12546169 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-10 [patent_title] => Directional drilling target steering apparatus and method [patent_app_type] => utility [patent_app_number] => 18/816470 [patent_app_country] => US [patent_app_date] => 2024-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 12 [patent_no_of_words] => 3688 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 198 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18816470 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/816470
Directional drilling target steering apparatus and method Aug 26, 2024 Issued
Array ( [id] => 20078104 [patent_doc_number] => 12352160 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-08 [patent_title] => Method of controlling tensile-splitting and hydro-shearing parameters during completion of enhanced geothermal system wells [patent_app_type] => utility [patent_app_number] => 18/804291 [patent_app_country] => US [patent_app_date] => 2024-08-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 40 [patent_figures_cnt] => 52 [patent_no_of_words] => 21096 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 284 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18804291 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/804291
Method of controlling tensile-splitting and hydro-shearing parameters during completion of enhanced geothermal system wells Aug 13, 2024 Issued
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