Search

Lut Wong

Examiner (ID: 9919, Phone: (571)270-1123 , Office: P/2129 )

Most Active Art Unit
2129
Art Unit(s)
2127, 2121, 2129
Total Applications
754
Issued Applications
539
Pending Applications
61
Abandoned Applications
167

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 16813039 [patent_doc_number] => 20210135594 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-05-06 [patent_title] => SEMICONDUCTOR DEVICE FOR NON-ISOLATED BUCK CONVERTER, NON-ISOLATED BUCK CONVERTER, AND POWER SUPPLY DEVICE [patent_app_type] => utility [patent_app_number] => 17/083657 [patent_app_country] => US [patent_app_date] => 2020-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12792 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17083657 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/083657
Semiconductor device for non-isolated buck converter, non-isolated buck converter, and power supply device Oct 28, 2020 Issued
Array ( [id] => 20259434 [patent_doc_number] => 12431800 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-30 [patent_title] => Switched-mode power module, a control circuitry for voltage and current regulations [patent_app_type] => utility [patent_app_number] => 17/767010 [patent_app_country] => US [patent_app_date] => 2020-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 17 [patent_no_of_words] => 1174 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 288 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17767010 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/767010
Switched-mode power module, a control circuitry for voltage and current regulations Oct 6, 2020 Issued
Array ( [id] => 16586802 [patent_doc_number] => 20210021204 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-01-21 [patent_title] => POWER CONVERSION APPARATUS [patent_app_type] => utility [patent_app_number] => 17/064718 [patent_app_country] => US [patent_app_date] => 2020-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10100 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17064718 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/064718
Power conversion apparatus having semiconductor modules each including series-connected semiconductor switches and output terminal coupled to node connecting semiconductor switches, and output bar coupling output terminals of semiconductor modules Oct 6, 2020 Issued
Array ( [id] => 16586791 [patent_doc_number] => 20210021193 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-01-21 [patent_title] => POWER MANAGEMENT SYSTEM [patent_app_type] => utility [patent_app_number] => 17/061399 [patent_app_country] => US [patent_app_date] => 2020-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9692 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17061399 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/061399
POWER MANAGEMENT SYSTEM Sep 30, 2020 Abandoned
Array ( [id] => 17956827 [patent_doc_number] => 11482945 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-10-25 [patent_title] => Rectifying circuit to reduce DC offset current [patent_app_type] => utility [patent_app_number] => 17/030271 [patent_app_country] => US [patent_app_date] => 2020-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 27 [patent_figures_cnt] => 27 [patent_no_of_words] => 9805 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 244 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17030271 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/030271
Rectifying circuit to reduce DC offset current Sep 22, 2020 Issued
Array ( [id] => 18236472 [patent_doc_number] => 11601043 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-03-07 [patent_title] => Control method and control circuit for an AC-DC power supply [patent_app_type] => utility [patent_app_number] => 17/022270 [patent_app_country] => US [patent_app_date] => 2020-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 3925 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17022270 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/022270
Control method and control circuit for an AC-DC power supply Sep 15, 2020 Issued
Array ( [id] => 17901678 [patent_doc_number] => 20220311340 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-29 [patent_title] => DC-DC CONVERTER AND METHOD FOR OPERATING A DC-DC CONVERTER [patent_app_type] => utility [patent_app_number] => 17/638902 [patent_app_country] => US [patent_app_date] => 2020-08-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2700 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17638902 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/638902
DC-DC converter and method for operating a DC-DC converter Aug 9, 2020 Issued
Array ( [id] => 17934019 [patent_doc_number] => 20220329145 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-13 [patent_title] => CONTROL DEVICE FOR A DC CONVERTER, DC CONVERTER, AND METHOD FOR CONTROLLING A DC CONVERTER [patent_app_type] => utility [patent_app_number] => 17/639058 [patent_app_country] => US [patent_app_date] => 2020-08-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5164 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17639058 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/639058
Control device for a DC-DC voltage converter with a voltage controller, DC converter and method for controlling a DC converter Aug 9, 2020 Issued
Array ( [id] => 17116393 [patent_doc_number] => 20210296990 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-23 [patent_title] => BUCK CONVERTER [patent_app_type] => utility [patent_app_number] => 16/988065 [patent_app_country] => US [patent_app_date] => 2020-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3222 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16988065 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/988065
BUCK CONVERTER Aug 6, 2020 Abandoned
Array ( [id] => 18473991 [patent_doc_number] => 20230208279 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-29 [patent_title] => ACTIVE DIODE CIRCUIT AND AC/DC POWER CONVERSION CIRCUIT [patent_app_type] => utility [patent_app_number] => 16/982538 [patent_app_country] => US [patent_app_date] => 2020-07-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7683 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 339 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16982538 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/982538
ACTIVE DIODE CIRCUIT AND AC/DC POWER CONVERSION CIRCUIT Jul 28, 2020 Abandoned
Array ( [id] => 17796323 [patent_doc_number] => 20220255415 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-11 [patent_title] => CONTROL CIRCUIT FOR POWER CONVERTER APPARATUS PROVIDED WITH PFC CIRCUIT OPERATING IN CURRENT-CRITICAL MODE [patent_app_type] => utility [patent_app_number] => 17/629259 [patent_app_country] => US [patent_app_date] => 2020-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6710 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 400 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17629259 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/629259
Control circuit for power converter apparatus provided with PFC circuit operating in current-critical mode Jul 26, 2020 Issued
Array ( [id] => 20360550 [patent_doc_number] => 12476558 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-18 [patent_title] => Converter having a quick transition to a normal operating mode after an initial start-up [patent_app_type] => utility [patent_app_number] => 18/006596 [patent_app_country] => US [patent_app_date] => 2020-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 502 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18006596 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/006596
Converter having a quick transition to a normal operating mode after an initial start-up Jul 23, 2020 Issued
Array ( [id] => 18767359 [patent_doc_number] => 11817776 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-11-14 [patent_title] => Power factor correction control method, apparatus, and device, and storage medium [patent_app_type] => utility [patent_app_number] => 17/790862 [patent_app_country] => US [patent_app_date] => 2020-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 6058 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 217 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17790862 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/790862
Power factor correction control method, apparatus, and device, and storage medium Jul 22, 2020 Issued
Array ( [id] => 20118643 [patent_doc_number] => 12368365 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-22 [patent_title] => Power conversion device and electric power steering device [patent_app_type] => utility [patent_app_number] => 18/011739 [patent_app_country] => US [patent_app_date] => 2020-07-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 14 [patent_no_of_words] => 5639 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 303 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18011739 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/011739
Power conversion device and electric power steering device Jul 21, 2020 Issued
Array ( [id] => 17347771 [patent_doc_number] => 20220014102 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-13 [patent_title] => CURRENT ESTIMATION IN A POWER SUPPLY [patent_app_type] => utility [patent_app_number] => 16/924526 [patent_app_country] => US [patent_app_date] => 2020-07-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8616 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [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] => 16924526 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/924526
Current estimation in a power supply Jul 8, 2020 Issued
Array ( [id] => 18645993 [patent_doc_number] => 11770076 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-09-26 [patent_title] => System and method for controlling active clamp flyback converter [patent_app_type] => utility [patent_app_number] => 17/420866 [patent_app_country] => US [patent_app_date] => 2020-06-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 5220 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 579 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17420866 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/420866
System and method for controlling active clamp flyback converter Jun 18, 2020 Issued
Array ( [id] => 16365104 [patent_doc_number] => 20200321855 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-08 [patent_title] => CONTROL UNIT OF A SWITCHING CONVERTER OPERATING IN CONTINUOUS-CONDUCTION AND PEAK-CURRENT-CONTROL MODE [patent_app_type] => utility [patent_app_number] => 16/905517 [patent_app_country] => US [patent_app_date] => 2020-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6795 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 16905517 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/905517
Control unit of a switching converter operating in continuous-conduction and peak-current-control mode Jun 17, 2020 Issued
Array ( [id] => 16859049 [patent_doc_number] => 20210159794 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-05-27 [patent_title] => DC-DC CONVERTER PROVIDING MULTIPLE OPERATION MODES [patent_app_type] => utility [patent_app_number] => 16/902349 [patent_app_country] => US [patent_app_date] => 2020-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4403 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16902349 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/902349
DC-DC converter providing multiple operation modes using multi-mode controller Jun 15, 2020 Issued
Array ( [id] => 16333048 [patent_doc_number] => 20200304014 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-09-24 [patent_title] => BUS VOLTAGE SECONDARY RIPPLE SUPPRESSION METHOD AND DEVICE [patent_app_type] => utility [patent_app_number] => 16/898913 [patent_app_country] => US [patent_app_date] => 2020-06-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9595 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16898913 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/898913
Bus voltage secondary ripple suppression method and device Jun 10, 2020 Issued
Array ( [id] => 16330493 [patent_doc_number] => 20200301459 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-09-24 [patent_title] => POWER SUPPLY AND METHOD FOR SUPPLYING POWER TO A LOAD USING AN INNER ANALOG CONTROL LOOP [patent_app_type] => utility [patent_app_number] => 16/895953 [patent_app_country] => US [patent_app_date] => 2020-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7273 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16895953 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/895953
Power supply and method for supplying power to a load using an inner analog control loop Jun 7, 2020 Issued
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