Search

Paul E. Callahan

Examiner (ID: 3750, Phone: (571)272-3869 , Office: P/2437 )

Most Active Art Unit
2437
Art Unit(s)
2767, 2134, 2137, 2132, 2437
Total Applications
1107
Issued Applications
840
Pending Applications
105
Abandoned Applications
167

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20634145 [patent_doc_number] => 12595012 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-04-07 [patent_title] => Electric riding device [patent_app_type] => utility [patent_app_number] => 19/340910 [patent_app_country] => US [patent_app_date] => 2025-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 140 [patent_figures_cnt] => 277 [patent_no_of_words] => 126511 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 340 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19340910 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/340910
Electric Riding Device Sep 25, 2025 Issued
Array ( [id] => 20294371 [patent_doc_number] => 20250319614 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-16 [patent_title] => LOWER ARM ASSEMBLY OF A ROBOT [patent_app_type] => utility [patent_app_number] => 19/249517 [patent_app_country] => US [patent_app_date] => 2025-06-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 35315 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19249517 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/249517
LOWER ARM ASSEMBLY OF A ROBOT Jun 24, 2025 Pending
Array ( [id] => 19298983 [patent_doc_number] => 20240227550 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-11 [patent_title] => DRIVELINE ASSEMBLY FOR A UTILITY VEHICLE [patent_app_type] => utility [patent_app_number] => 18/615503 [patent_app_country] => US [patent_app_date] => 2024-03-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5068 [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] => 18615503 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/615503
DRIVELINE ASSEMBLY FOR A UTILITY VEHICLE Mar 24, 2024 Pending
Array ( [id] => 19141735 [patent_doc_number] => 20240140553 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-02 [patent_title] => FOLDABLE ELECTRIC BICYCLE [patent_app_type] => utility [patent_app_number] => 18/500078 [patent_app_country] => US [patent_app_date] => 2023-11-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2747 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18500078 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/500078
FOLDABLE ELECTRIC BICYCLE Oct 31, 2023 Pending
Array ( [id] => 19141336 [patent_doc_number] => 20240140150 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-02 [patent_title] => VEHICLE BODY REAR STRUCTURE [patent_app_type] => utility [patent_app_number] => 18/491816 [patent_app_country] => US [patent_app_date] => 2023-10-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4155 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18491816 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/491816
VEHICLE BODY REAR STRUCTURE Oct 22, 2023 Pending
Array ( [id] => 18920477 [patent_doc_number] => 20240023481 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-25 [patent_title] => INTEGRATED STEP-UP WITHIN COMBINE HITCH [patent_app_type] => utility [patent_app_number] => 18/223836 [patent_app_country] => US [patent_app_date] => 2023-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3458 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18223836 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/223836
INTEGRATED STEP-UP WITHIN COMBINE HITCH Jul 18, 2023 Pending
Array ( [id] => 18901909 [patent_doc_number] => 20240017394 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-18 [patent_title] => ACTIVE SHOOTER RESPONSE ROBOT [patent_app_type] => utility [patent_app_number] => 18/346408 [patent_app_country] => US [patent_app_date] => 2023-07-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2680 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18346408 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/346408
ACTIVE SHOOTER RESPONSE ROBOT Jul 2, 2023 Pending
Array ( [id] => 18894803 [patent_doc_number] => 20240010288 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-11 [patent_title] => Bicycle Storage Compartment [patent_app_type] => utility [patent_app_number] => 18/217680 [patent_app_country] => US [patent_app_date] => 2023-07-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2479 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18217680 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/217680
Bicycle Storage Compartment Jul 2, 2023 Pending
Array ( [id] => 19571212 [patent_doc_number] => 20240375504 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-14 [patent_title] => CONVERSION SYSTEM FOR ZERO TURN LAWN EQUIPMENT [patent_app_type] => utility [patent_app_number] => 18/344122 [patent_app_country] => US [patent_app_date] => 2023-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2653 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [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] => 18344122 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/344122
CONVERSION SYSTEM FOR ZERO TURN LAWN EQUIPMENT Jun 28, 2023 Pending
Array ( [id] => 19585732 [patent_doc_number] => 20240383289 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-21 [patent_title] => HITCH MOUNT FOR A FRONT END OF A VEHICLE [patent_app_type] => utility [patent_app_number] => 18/198826 [patent_app_country] => US [patent_app_date] => 2023-05-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1672 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18198826 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/198826
HITCH MOUNT FOR A FRONT END OF A VEHICLE May 16, 2023 Pending
Array ( [id] => 19202408 [patent_doc_number] => 20240174307 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-30 [patent_title] => Unmanned Vehicle Suitable for Mountains and Hills and Attitude Adjustment Method [patent_app_type] => utility [patent_app_number] => 18/140678 [patent_app_country] => US [patent_app_date] => 2023-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4021 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18140678 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/140678
Unmanned Vehicle Suitable for Mountains and Hills and Attitude Adjustment Method Apr 27, 2023 Pending
Array ( [id] => 19448452 [patent_doc_number] => 20240308582 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-19 [patent_title] => STEERING SYSTEM AND WORK MACHINE [patent_app_type] => utility [patent_app_number] => 18/185484 [patent_app_country] => US [patent_app_date] => 2023-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6135 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 380 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18185484 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/185484
Steering system and work machine Mar 16, 2023 Issued
Array ( [id] => 18627853 [patent_doc_number] => 20230286672 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-14 [patent_title] => CONTINUOUS ROTATION ROVER SUSPENSION WITH CONSTANT VERTICAL STEERING AXIS [patent_app_type] => utility [patent_app_number] => 18/116106 [patent_app_country] => US [patent_app_date] => 2023-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6854 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -25 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18116106 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/116106
CONTINUOUS ROTATION ROVER SUSPENSION WITH CONSTANT VERTICAL STEERING AXIS Feb 28, 2023 Pending
Array ( [id] => 19402935 [patent_doc_number] => 20240286446 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-29 [patent_title] => Tow Hook Assemblies and Vehicles Including Same [patent_app_type] => utility [patent_app_number] => 18/173315 [patent_app_country] => US [patent_app_date] => 2023-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6913 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18173315 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/173315
Tow Hook Assemblies and Vehicles Including Same Feb 22, 2023 Pending
Array ( [id] => 19344444 [patent_doc_number] => 20240253407 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-01 [patent_title] => Rotating Trailer Hitch Arm [patent_app_type] => utility [patent_app_number] => 18/103562 [patent_app_country] => US [patent_app_date] => 2023-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1220 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18103562 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/103562
Rotating trailer hitch arm Jan 30, 2023 Issued
Array ( [id] => 18535106 [patent_doc_number] => 20230240187 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-03 [patent_title] => CONVERSION SYSTEM FOR ZERO TURN LAWN EQUIPMENT [patent_app_type] => utility [patent_app_number] => 18/154948 [patent_app_country] => US [patent_app_date] => 2023-01-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1003 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18154948 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/154948
CONVERSION SYSTEM FOR ZERO TURN LAWN EQUIPMENT Jan 15, 2023 Pending
Array ( [id] => 18360522 [patent_doc_number] => 20230142113 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-11 [patent_title] => AUXILIARY DRIVE DEVICE FOR A WHEELCHAIR [patent_app_type] => utility [patent_app_number] => 18/095649 [patent_app_country] => US [patent_app_date] => 2023-01-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12294 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 245 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18095649 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/095649
AUXILIARY DRIVE DEVICE FOR A WHEELCHAIR Jan 10, 2023 Pending
Array ( [id] => 18566476 [patent_doc_number] => 20230256804 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-17 [patent_title] => INTEGRATED ENGINE MOUNT [patent_app_type] => utility [patent_app_number] => 18/090909 [patent_app_country] => US [patent_app_date] => 2022-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12897 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18090909 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/090909
INTEGRATED ENGINE MOUNT Dec 28, 2022 Pending
Array ( [id] => 18566739 [patent_doc_number] => 20230257067 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-17 [patent_title] => RECREATIONAL VEHICLE TOE STOP, TOE STOP ASSEMBLIES, AND METHODS OF ASSEMBLING A RECREATIONAL VEHICLE [patent_app_type] => utility [patent_app_number] => 18/089126 [patent_app_country] => US [patent_app_date] => 2022-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 29319 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 50 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18089126 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/089126
RECREATIONAL VEHICLE TOE STOP, TOE STOP ASSEMBLIES, AND METHODS OF ASSEMBLING A RECREATIONAL VEHICLE Dec 26, 2022 Pending
Array ( [id] => 19202418 [patent_doc_number] => 20240174317 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-30 [patent_title] => FRAME REINFORCEMENT ASSEMBLY FOR BICYCLE OR VEHICLE [patent_app_type] => utility [patent_app_number] => 18/070508 [patent_app_country] => US [patent_app_date] => 2022-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3887 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18070508 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/070508
FRAME REINFORCEMENT ASSEMBLY FOR BICYCLE OR VEHICLE Nov 28, 2022 Pending
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