Search

Cao H. Nguyen

Examiner (ID: 2145, Phone: (571)272-4053 , Office: P/2171 )

Most Active Art Unit
2171
Art Unit(s)
2171, 2173, 2773, 2787, 2415
Total Applications
1948
Issued Applications
1668
Pending Applications
133
Abandoned Applications
167

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17340063 [patent_doc_number] => 20220006394 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-06 [patent_title] => POWER MODULE [patent_app_type] => utility [patent_app_number] => 17/354807 [patent_app_country] => US [patent_app_date] => 2021-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10452 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17354807 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/354807
Power module Jun 21, 2021 Issued
Array ( [id] => 18175586 [patent_doc_number] => 11575310 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-02-07 [patent_title] => Powered system with passive filter for an energy storage device [patent_app_type] => utility [patent_app_number] => 17/351882 [patent_app_country] => US [patent_app_date] => 2021-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 14 [patent_no_of_words] => 8417 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 100 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17351882 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/351882
Powered system with passive filter for an energy storage device Jun 17, 2021 Issued
Array ( [id] => 19336186 [patent_doc_number] => 20240250616 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => Power Conversion Apparatus [patent_app_type] => utility [patent_app_number] => 18/559841 [patent_app_country] => US [patent_app_date] => 2021-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5495 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [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] => 18559841 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/559841
Power conversion apparatus Jun 8, 2021 Issued
Array ( [id] => 19843119 [patent_doc_number] => 12255526 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-18 [patent_title] => Power converter with common mode filter [patent_app_type] => utility [patent_app_number] => 18/040657 [patent_app_country] => US [patent_app_date] => 2021-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 13 [patent_no_of_words] => 5913 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18040657 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/040657
Power converter with common mode filter Jun 7, 2021 Issued
Array ( [id] => 17319874 [patent_doc_number] => 20210408924 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-30 [patent_title] => CONVERTER [patent_app_type] => utility [patent_app_number] => 17/339139 [patent_app_country] => US [patent_app_date] => 2021-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4137 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 208 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17339139 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/339139
Converter Jun 3, 2021 Issued
Array ( [id] => 17100693 [patent_doc_number] => 20210288484 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-16 [patent_title] => PROTECTION AGAINST AC VOLTAGE CONDITIONS [patent_app_type] => utility [patent_app_number] => 17/335943 [patent_app_country] => US [patent_app_date] => 2021-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7750 [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] => 17335943 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/335943
Protection against AC voltage conditions May 31, 2021 Issued
Array ( [id] => 18175590 [patent_doc_number] => 11575314 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-02-07 [patent_title] => Autonomous mode transition for multimode operation in boost PFC converters [patent_app_type] => utility [patent_app_number] => 17/334651 [patent_app_country] => US [patent_app_date] => 2021-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 24 [patent_no_of_words] => 21702 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 58 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17334651 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/334651
Autonomous mode transition for multimode operation in boost PFC converters May 27, 2021 Issued
Array ( [id] => 17319893 [patent_doc_number] => 20210408943 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-30 [patent_title] => POWER CONVERSION APPARATUS [patent_app_type] => utility [patent_app_number] => 17/333608 [patent_app_country] => US [patent_app_date] => 2021-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 21394 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17333608 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/333608
Power conversion apparatus May 27, 2021 Issued
Array ( [id] => 17319846 [patent_doc_number] => 20210408896 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-30 [patent_title] => POWER REGENERATION SNUBBER CIRCUIT AND POWER SUPPLY DEVICE [patent_app_type] => utility [patent_app_number] => 17/333512 [patent_app_country] => US [patent_app_date] => 2021-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3490 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 184 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17333512 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/333512
Power regeneration snubber circuit and power supply device May 27, 2021 Issued
Array ( [id] => 18457116 [patent_doc_number] => 20230198398 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-22 [patent_title] => POWER CONVERSION CIRCUIT, SEMICONDUCTOR DEVICE, AND ELECTRONIC DEVICE [patent_app_type] => utility [patent_app_number] => 17/926674 [patent_app_country] => US [patent_app_date] => 2021-05-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9695 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17926674 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/926674
Power conversion circuit, semiconductor device, and electronic device May 25, 2021 Issued
Array ( [id] => 19969119 [patent_doc_number] => 12337708 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-24 [patent_title] => Method and device for charging an intermediate circuit capacitor in a high-voltage network [patent_app_type] => utility [patent_app_number] => 18/007548 [patent_app_country] => US [patent_app_date] => 2021-05-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18007548 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/007548
Method and device for charging an intermediate circuit capacitor in a high-voltage network May 24, 2021 Issued
Array ( [id] => 18032575 [patent_doc_number] => 11515779 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-11-29 [patent_title] => Switching control in electrical load controllers [patent_app_type] => utility [patent_app_number] => 17/325164 [patent_app_country] => US [patent_app_date] => 2021-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 14 [patent_no_of_words] => 20561 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 250 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17325164 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/325164
Switching control in electrical load controllers May 18, 2021 Issued
Array ( [id] => 17068006 [patent_doc_number] => 20210270221 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-02 [patent_title] => BATTERY SYSTEM FOR POWER EQUIPMENT [patent_app_type] => utility [patent_app_number] => 17/323395 [patent_app_country] => US [patent_app_date] => 2021-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5592 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17323395 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/323395
Battery system for power equipment May 17, 2021 Issued
Array ( [id] => 17263776 [patent_doc_number] => 20210376761 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-02 [patent_title] => DEAD-TIME CONTROL METHOD FOR POWER ELECTRONICS CONVERTERS AND A CIRCUIT FOR THE APPLICATION OF THIS METHOD [patent_app_type] => utility [patent_app_number] => 17/320226 [patent_app_country] => US [patent_app_date] => 2021-05-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10352 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 264 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17320226 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/320226
Dead-time control method for power electronics converters and a circuit for the application of this method May 13, 2021 Issued
Array ( [id] => 18358255 [patent_doc_number] => 11646666 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-05-09 [patent_title] => Daisy chain clock distribution system [patent_app_type] => utility [patent_app_number] => 17/317101 [patent_app_country] => US [patent_app_date] => 2021-05-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 11 [patent_no_of_words] => 9823 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17317101 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/317101
Daisy chain clock distribution system May 10, 2021 Issued
Array ( [id] => 18984022 [patent_doc_number] => 11909214 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-02-20 [patent_title] => Topology of series-connected MMC with a small number of modules [patent_app_type] => utility [patent_app_number] => 17/640603 [patent_app_country] => US [patent_app_date] => 2021-05-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 2128 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17640603 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/640603
Topology of series-connected MMC with a small number of modules May 6, 2021 Issued
Array ( [id] => 17607711 [patent_doc_number] => 11336205 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-05-17 [patent_title] => Inverter for a low frequency amplifier with high drive voltage, high power density, high efficiency, and wide bandwidth operation [patent_app_type] => utility [patent_app_number] => 17/242598 [patent_app_country] => US [patent_app_date] => 2021-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 4221 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17242598 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/242598
Inverter for a low frequency amplifier with high drive voltage, high power density, high efficiency, and wide bandwidth operation Apr 27, 2021 Issued
Array ( [id] => 17861328 [patent_doc_number] => 11442484 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-09-13 [patent_title] => Voltage regulator [patent_app_type] => utility [patent_app_number] => 17/241268 [patent_app_country] => US [patent_app_date] => 2021-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 23 [patent_no_of_words] => 12473 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17241268 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/241268
Voltage regulator Apr 26, 2021 Issued
Array ( [id] => 17788366 [patent_doc_number] => 11411507 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-08-09 [patent_title] => Bidirectional power converter [patent_app_type] => utility [patent_app_number] => 17/241073 [patent_app_country] => US [patent_app_date] => 2021-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 9257 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [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] => 17241073 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/241073
Bidirectional power converter Apr 26, 2021 Issued
Array ( [id] => 19155168 [patent_doc_number] => 11980105 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-05-07 [patent_title] => Superconducting switch [patent_app_type] => utility [patent_app_number] => 17/240965 [patent_app_country] => US [patent_app_date] => 2021-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 16 [patent_no_of_words] => 4226 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17240965 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/240965
Superconducting switch Apr 25, 2021 Issued
Menu