
Kai J. Chang
Examiner (ID: 16031)
| Most Active Art Unit | 2468 |
| Art Unit(s) | 2468 |
| Total Applications | 469 |
| Issued Applications | 337 |
| Pending Applications | 28 |
| Abandoned Applications | 109 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 20176284
[patent_doc_number] => 12395043
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-08-19
[patent_title] => Cooling device for electric motor
[patent_app_type] => utility
[patent_app_number] => 18/119032
[patent_app_country] => US
[patent_app_date] => 2023-03-08
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/119032 | Cooling device for electric motor | Mar 7, 2023 | Issued |
Array
(
[id] => 19407853
[patent_doc_number] => 20240291364
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-08-29
[patent_title] => ELECTRICAL MACHINE WITH AXIALLY-EXTENDING FLUX
[patent_app_type] => utility
[patent_app_number] => 18/176193
[patent_app_country] => US
[patent_app_date] => 2023-02-28
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/176193 | ELECTRICAL MACHINE WITH AXIALLY-EXTENDING FLUX | Feb 27, 2023 | Abandoned |
Array
(
[id] => 18473954
[patent_doc_number] => 20230208242
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-06-29
[patent_title] => MOTOR
[patent_app_type] => utility
[patent_app_number] => 18/145982
[patent_app_country] => US
[patent_app_date] => 2022-12-23
[patent_effective_date] => 0000-00-00
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/145982 | Insulation assemblies and members for a stator of an electric motor | Dec 22, 2022 | Issued |
Array
(
[id] => 20346369
[patent_doc_number] => 12470105
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-11-11
[patent_title] => Insulating a stator of an electric motor with insulating assemblies and insulating sheets
[patent_app_type] => utility
[patent_app_number] => 18/145993
[patent_app_country] => US
[patent_app_date] => 2022-12-23
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Array
(
[id] => 18338464
[patent_doc_number] => 20230130413
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[patent_kind] => A1
[patent_issue_date] => 2023-04-27
[patent_title] => BRUSHLESS MOTOR
[patent_app_type] => utility
[patent_app_number] => 18/087326
[patent_app_country] => US
[patent_app_date] => 2022-12-22
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/087326 | Brushless motor | Dec 21, 2022 | Issued |
Array
(
[id] => 18440698
[patent_doc_number] => 20230187994
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[patent_kind] => A1
[patent_issue_date] => 2023-06-15
[patent_title] => ELECTRIC MOTOR WITH FIBROUS COMPOSITE INSULATION FOR REDUCING BEARING ARCING
[patent_app_type] => utility
[patent_app_number] => 18/065528
[patent_app_country] => US
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/065528 | ELECTRIC MOTOR WITH FIBROUS COMPOSITE INSULATION FOR REDUCING BEARING ARCING | Dec 12, 2022 | Abandoned |
Array
(
[id] => 18380364
[patent_doc_number] => 20230155454
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[patent_kind] => A1
[patent_issue_date] => 2023-05-18
[patent_title] => STATOR FOR A ROTATING ELECTRICAL MACHINE
[patent_app_type] => utility
[patent_app_number] => 17/987201
[patent_app_country] => US
[patent_app_date] => 2022-11-15
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/987201 | Stator for a rotating electrical machine | Nov 14, 2022 | Issued |
Array
(
[id] => 19935518
[patent_doc_number] => 12308728
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-05-20
[patent_title] => Electric work machine
[patent_app_type] => utility
[patent_app_number] => 17/981793
[patent_app_country] => US
[patent_app_date] => 2022-11-07
[patent_effective_date] => 0000-00-00
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/981793 | Electric work machine | Nov 6, 2022 | Issued |
Array
(
[id] => 20103540
[patent_doc_number] => 20250233476
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-07-17
[patent_title] => Heat Sink for a Stator Housing
[patent_app_type] => utility
[patent_app_number] => 18/700114
[patent_app_country] => US
[patent_app_date] => 2022-10-27
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/700114 | Heat Sink for a Stator Housing | Oct 26, 2022 | Pending |
Array
(
[id] => 19762455
[patent_doc_number] => 12220726
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-02-11
[patent_title] => Silicide capacitive micro electromechanical structure and fabrication method thereof
[patent_app_type] => utility
[patent_app_number] => 17/965533
[patent_app_country] => US
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/965533 | Silicide capacitive micro electromechanical structure and fabrication method thereof | Oct 12, 2022 | Issued |
Array
(
[id] => 19851301
[patent_doc_number] => 20250096652
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-03-20
[patent_title] => ELECTRIC POWER HEAD FOR OUTDOOR POWER EQUIPMENT
[patent_app_type] => utility
[patent_app_number] => 18/565215
[patent_app_country] => US
[patent_app_date] => 2022-10-12
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/565215 | Electric power head for outdoor power equipment | Oct 11, 2022 | Issued |
Array
(
[id] => 19407829
[patent_doc_number] => 20240291340
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-08-29
[patent_title] => COIL FOR STATOR OF ELECTRIC MOTOR, STATOR AND MANUFACTURING PROCESS
[patent_app_type] => utility
[patent_app_number] => 18/697327
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/697327 | Coil for stator of electric motor, stator and manufacturing process | Sep 29, 2022 | Issued |
Array
(
[id] => 18182998
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[patent_title] => External Rotor Motor With A Cooling Wheel For Cooling The Stator
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/881735 | External rotor motor with a cooling wheel for cooling the stator | Aug 4, 2022 | Issued |
Array
(
[id] => 18197903
[patent_doc_number] => 20230051422
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[patent_title] => ROTOR FOR A ROTARY ELECTRIC MACHINE
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/878323 | Rotor for a rotary electric machine | Jul 31, 2022 | Issued |
Array
(
[id] => 20020238
[patent_doc_number] => 20250158460
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[patent_title] => Rotary Electrical Machine and Vehicle Driving Device Including Rotary Electrical Machine
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/726250 | Rotary Electrical Machine and Vehicle Driving Device Including Rotary Electrical Machine | Jul 24, 2022 | Pending |
Array
(
[id] => 19261363
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[patent_title] => Cooling of active elements of electrical machines
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/868993 | Cooling of active elements of electrical machines | Jul 19, 2022 | Issued |
Array
(
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[patent_title] => BRUSHLESS MOTOR
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[rel_patent_id] =>[rel_patent_doc_number] =>) 18/578441 | BRUSHLESS MOTOR | Jul 11, 2022 | Pending |
Array
(
[id] => 19532496
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Array
(
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Array
(
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[patent_title] => STATOR COMPRISING MULTIPLE-ROW ARMATURE WINDING WITH HIGH FILL FACTOR
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/850243 | Stator comprising multiple-row armature winding with high fill factor | Jun 26, 2022 | Issued |