Search

David S. Luo

Examiner (ID: 15345, Phone: (571)270-5251 , Office: P/2837 )

Most Active Art Unit
2837
Art Unit(s)
4192, 2837, 2846
Total Applications
1935
Issued Applications
1753
Pending Applications
104
Abandoned Applications
118

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19192183 [patent_doc_number] => 20240171096 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-23 [patent_title] => ACTUATOR WITH AN ELECTRIC MOTOR AND A METHOD OF CONTROLLING THE ELECTRIC MOTOR TO MAINTAIN A CURRENT POSITION [patent_app_type] => utility [patent_app_number] => 18/425727 [patent_app_country] => US [patent_app_date] => 2024-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3894 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18425727 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/425727
Actuator with an electric motor and a method of controlling the electric motor to maintain a current position Jan 28, 2024 Issued
Array ( [id] => 20775221 [patent_doc_number] => 12658907 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-06-16 [patent_title] => Switch driving device [patent_app_type] => utility [patent_app_number] => 18/424266 [patent_app_country] => US [patent_app_date] => 2024-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 9677 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18424266 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/424266
Switch driving device Jan 25, 2024 Issued
Array ( [id] => 19174205 [patent_doc_number] => 20240160179 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-16 [patent_title] => CONTROL SYSTEM, CONTROL METHOD, AND CONTROL PROGRAM [patent_app_type] => utility [patent_app_number] => 18/418452 [patent_app_country] => US [patent_app_date] => 2024-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8708 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18418452 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/418452
Control system, control method, and control program Jan 21, 2024 Issued
Array ( [id] => 20360566 [patent_doc_number] => 12476574 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-18 [patent_title] => Drive apparatus [patent_app_type] => utility [patent_app_number] => 18/414294 [patent_app_country] => US [patent_app_date] => 2024-01-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 1165 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18414294 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/414294
Drive apparatus Jan 15, 2024 Issued
Array ( [id] => 19360298 [patent_doc_number] => 20240262332 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-08 [patent_title] => BRAKE DEVICE FOR HOST VEHICLE AND CONTROL METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/412473 [patent_app_country] => US [patent_app_date] => 2024-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5469 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18412473 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/412473
BRAKE DEVICE FOR HOST VEHICLE AND CONTROL METHOD THEREOF Jan 12, 2024 Pending
Array ( [id] => 19306870 [patent_doc_number] => 20240235450 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-11 [patent_title] => MOTOR DRIVE CIRCUITRY [patent_app_type] => utility [patent_app_number] => 18/406503 [patent_app_country] => US [patent_app_date] => 2024-01-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6980 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 199 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18406503 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/406503
Motor drive circuitry Jan 7, 2024 Issued
Array ( [id] => 19705492 [patent_doc_number] => 12199541 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-14 [patent_title] => Systems and methods for electric damping of aircraft flight control surfaces and propellers [patent_app_type] => utility [patent_app_number] => 18/401446 [patent_app_country] => US [patent_app_date] => 2023-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 11753 [patent_no_of_claims] => 75 [patent_no_of_ind_claims] => 10 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18401446 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/401446
Systems and methods for electric damping of aircraft flight control surfaces and propellers Dec 29, 2023 Issued
Array ( [id] => 20305829 [patent_doc_number] => 12451833 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-21 [patent_title] => Dynamic protection method and system for linear vibration motor, and related device [patent_app_type] => utility [patent_app_number] => 18/401281 [patent_app_country] => US [patent_app_date] => 2023-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 0 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 235 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18401281 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/401281
Dynamic protection method and system for linear vibration motor, and related device Dec 28, 2023 Issued
Array ( [id] => 20535512 [patent_doc_number] => 12552573 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-17 [patent_title] => Linear motor system, corresponding forming assembly and method [patent_app_type] => utility [patent_app_number] => 18/398888 [patent_app_country] => US [patent_app_date] => 2023-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 3167 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18398888 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/398888
Linear motor system, corresponding forming assembly and method Dec 27, 2023 Issued
Array ( [id] => 19117149 [patent_doc_number] => 20240128899 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-18 [patent_title] => SMART MOTOR SYSTEMS AND METHODS USING LOCAL INTELLIGENCE [patent_app_type] => utility [patent_app_number] => 18/393139 [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] => 8584 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18393139 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/393139
Smart motor systems and methods using local intelligence Dec 20, 2023 Issued
Array ( [id] => 20072929 [patent_doc_number] => 20250211151 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-26 [patent_title] => MITIGATION OF VEHICLE VIBRATIONS INDUCED BY DRIVE-LINE OSCILLATIONS [patent_app_type] => utility [patent_app_number] => 18/393395 [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] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18393395 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/393395
Mitigation of vehicle vibrations induced by drive-line oscillations Dec 20, 2023 Issued
Array ( [id] => 19286568 [patent_doc_number] => 20240223048 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => AIRCRAFT PISTON ENGINE MAGNETO AND IGNITION SYSTEM [patent_app_type] => utility [patent_app_number] => 18/544421 [patent_app_country] => US [patent_app_date] => 2023-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11195 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18544421 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/544421
AIRCRAFT PISTON ENGINE MAGNETO AND IGNITION SYSTEM Dec 17, 2023 Pending
Array ( [id] => 20441513 [patent_doc_number] => 12512355 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-30 [patent_title] => Motion system with a configurable feedforward control [patent_app_type] => utility [patent_app_number] => 18/529016 [patent_app_country] => US [patent_app_date] => 2023-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18529016 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/529016
Motion system with a configurable feedforward control Dec 4, 2023 Issued
Array ( [id] => 20346429 [patent_doc_number] => 12470165 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-11 [patent_title] => Systems, apparatuses, methods, and computer program products for detecting unbalance phase and phase loss fault for motor control [patent_app_type] => utility [patent_app_number] => 18/526838 [patent_app_country] => US [patent_app_date] => 2023-12-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 20 [patent_no_of_words] => 6864 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 231 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18526838 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/526838
Systems, apparatuses, methods, and computer program products for detecting unbalance phase and phase loss fault for motor control Nov 30, 2023 Issued
Array ( [id] => 20045602 [patent_doc_number] => 20250183824 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-05 [patent_title] => METHODS AND APPARATUS TO SENSE CHANGES IN A LOAD OF A STEPPER MOTOR [patent_app_type] => utility [patent_app_number] => 18/525348 [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] => 19551 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18525348 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/525348
Methods and apparatus to sense changes in a load of a stepper motor Nov 29, 2023 Issued
Array ( [id] => 19204432 [patent_doc_number] => 20240176331 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-30 [patent_title] => SERVO SYSTEM [patent_app_type] => utility [patent_app_number] => 18/515366 [patent_app_country] => US [patent_app_date] => 2023-11-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7580 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 224 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18515366 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/515366
Servo system Nov 20, 2023 Issued
Array ( [id] => 20267490 [patent_doc_number] => 12438492 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-07 [patent_title] => Motor control unit [patent_app_type] => utility [patent_app_number] => 18/509693 [patent_app_country] => US [patent_app_date] => 2023-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18509693 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/509693
Motor control unit Nov 14, 2023 Issued
Array ( [id] => 20469860 [patent_doc_number] => 12525903 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-13 [patent_title] => Power tool and control method thereof [patent_app_type] => utility [patent_app_number] => 18/389441 [patent_app_country] => US [patent_app_date] => 2023-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 1306 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 322 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18389441 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/389441
Power tool and control method thereof Nov 13, 2023 Issued
Array ( [id] => 19033151 [patent_doc_number] => 20240082966 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-14 [patent_title] => CROSS-COUPLING CONTROL METHOD FOR MOVING BEAM OF GANTRY MACHINE TOOL [patent_app_type] => utility [patent_app_number] => 18/508333 [patent_app_country] => US [patent_app_date] => 2023-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5117 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18508333 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/508333
Cross-coupling control method for moving beam of gantry machine tool Nov 13, 2023 Issued
Array ( [id] => 19176869 [patent_doc_number] => 20240162843 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-16 [patent_title] => MOTOR DRIVE CONTROL DEVICE AND FAN UNIT [patent_app_type] => utility [patent_app_number] => 18/507159 [patent_app_country] => US [patent_app_date] => 2023-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10475 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 196 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18507159 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/507159
Motor drive control device and fan unit Nov 12, 2023 Issued
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