Search

Cynthia R. Underwood

Examiner (ID: 16894, Phone: (571)272-7652 , Office: P/2918 )

Most Active Art Unit
2918
Art Unit(s)
2915, 2918, 2924
Total Applications
5157
Issued Applications
5107
Pending Applications
8
Abandoned Applications
49

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18325265 [patent_doc_number] => 20230123393 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-20 [patent_title] => Gain Limiter [patent_app_type] => utility [patent_app_number] => 17/502560 [patent_app_country] => US [patent_app_date] => 2021-10-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7597 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17502560 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/502560
Gain limiter Oct 14, 2021 Issued
Array ( [id] => 17738784 [patent_doc_number] => 20220224246 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-14 [patent_title] => CURRENT CONTROL DEVICE AND POWER CONVERSION SYSTEM EMPLOYING SAME [patent_app_type] => utility [patent_app_number] => 17/500519 [patent_app_country] => US [patent_app_date] => 2021-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2518 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17500519 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/500519
Current control device and power conversion system employing same Oct 12, 2021 Issued
Array ( [id] => 19647183 [patent_doc_number] => 20240421703 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-19 [patent_title] => BIDIRECTIONAL BRIDGELESS PFC CIRCUIT [patent_app_type] => utility [patent_app_number] => 18/697979 [patent_app_country] => US [patent_app_date] => 2021-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5626 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18697979 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/697979
BIDIRECTIONAL BRIDGELESS PFC CIRCUIT Oct 7, 2021 Pending
Array ( [id] => 17597510 [patent_doc_number] => 20220147084 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-12 [patent_title] => VOLTAGE REGULATOR [patent_app_type] => utility [patent_app_number] => 17/493851 [patent_app_country] => US [patent_app_date] => 2021-10-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3196 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 17493851 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/493851
Voltage regulator Oct 4, 2021 Issued
Array ( [id] => 20267535 [patent_doc_number] => 12438537 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-07 [patent_title] => Power supply device and method for checking a field effect transistor of such a power supply device [patent_app_type] => utility [patent_app_number] => 18/247809 [patent_app_country] => US [patent_app_date] => 2021-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 0 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 200 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18247809 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/247809
Power supply device and method for checking a field effect transistor of such a power supply device Sep 30, 2021 Issued
Array ( [id] => 18285589 [patent_doc_number] => 20230101061 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-30 [patent_title] => POWER TRANSFER, GATE DRIVE, AND/OR PROTECTION FUNCTIONS ACROSS AN ISOLATION BARRIER [patent_app_type] => utility [patent_app_number] => 17/491235 [patent_app_country] => US [patent_app_date] => 2021-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10740 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17491235 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/491235
Power transfer, gate drive, and/or protection functions across an isolation barrier Sep 29, 2021 Issued
Array ( [id] => 19214101 [patent_doc_number] => 12003180 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-04 [patent_title] => Power supply for driving synchronous rectification elements of SEPIC converter [patent_app_type] => utility [patent_app_number] => 17/486974 [patent_app_country] => US [patent_app_date] => 2021-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 13 [patent_no_of_words] => 3678 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 3 [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] => 17486974 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/486974
Power supply for driving synchronous rectification elements of SEPIC converter Sep 27, 2021 Issued
Array ( [id] => 19887293 [patent_doc_number] => 12273029 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-08 [patent_title] => Switch-mode power supply with a network of flying capacitors and switches [patent_app_type] => utility [patent_app_number] => 17/448475 [patent_app_country] => US [patent_app_date] => 2021-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 11824 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 398 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17448475 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/448475
Switch-mode power supply with a network of flying capacitors and switches Sep 21, 2021 Issued
Array ( [id] => 18857861 [patent_doc_number] => 11855459 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-12-26 [patent_title] => Method for three-phase supply into an alternating voltage network, and three-phase inverter [patent_app_type] => utility [patent_app_number] => 17/473150 [patent_app_country] => US [patent_app_date] => 2021-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4149 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [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] => 17473150 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/473150
Method for three-phase supply into an alternating voltage network, and three-phase inverter Sep 12, 2021 Issued
Array ( [id] => 18624290 [patent_doc_number] => 11757352 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-09-12 [patent_title] => Power conversion system for electrically driven mobility device and method for controlling same [patent_app_type] => utility [patent_app_number] => 17/470107 [patent_app_country] => US [patent_app_date] => 2021-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4487 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17470107 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/470107
Power conversion system for electrically driven mobility device and method for controlling same Sep 8, 2021 Issued
Array ( [id] => 17863295 [patent_doc_number] => 11444460 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-09-13 [patent_title] => Power quality compensation system and control method with bus voltage and current peak control [patent_app_type] => utility [patent_app_number] => 17/461401 [patent_app_country] => US [patent_app_date] => 2021-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 9420 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 429 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17461401 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/461401
Power quality compensation system and control method with bus voltage and current peak control Aug 29, 2021 Issued
Array ( [id] => 18680811 [patent_doc_number] => 20230318474 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-05 [patent_title] => Method for Operating a Converter, Converter and Computer Program Product [patent_app_type] => utility [patent_app_number] => 18/023798 [patent_app_country] => US [patent_app_date] => 2021-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14341 [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] => 18023798 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/023798
Method for Operating a Converter, Converter and Computer Program Product Aug 25, 2021 Pending
Array ( [id] => 18840526 [patent_doc_number] => 11848612 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-12-19 [patent_title] => Hybrid buck-boost power converter [patent_app_type] => utility [patent_app_number] => 17/409033 [patent_app_country] => US [patent_app_date] => 2021-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 25 [patent_figures_cnt] => 34 [patent_no_of_words] => 7493 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17409033 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/409033
Hybrid buck-boost power converter Aug 22, 2021 Issued
Array ( [id] => 18416473 [patent_doc_number] => 11671023 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-06-06 [patent_title] => Power supply control circuit for switch mode power supply converter and power supply control method using the same [patent_app_type] => utility [patent_app_number] => 17/407387 [patent_app_country] => US [patent_app_date] => 2021-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 6315 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 748 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17407387 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/407387
Power supply control circuit for switch mode power supply converter and power supply control method using the same Aug 19, 2021 Issued
Array ( [id] => 17275914 [patent_doc_number] => 20210382112 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-09 [patent_title] => SAFETY FAULT INTERRUPTER CIRCUIT WITH POWER FAULT MONITOR [patent_app_type] => utility [patent_app_number] => 17/407253 [patent_app_country] => US [patent_app_date] => 2021-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7618 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 17407253 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/407253
Safety fault interrupter circuit with power fault monitor Aug 19, 2021 Issued
Array ( [id] => 18519628 [patent_doc_number] => 11709519 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-07-25 [patent_title] => Reference voltage circuit [patent_app_type] => utility [patent_app_number] => 17/406460 [patent_app_country] => US [patent_app_date] => 2021-08-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3528 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17406460 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/406460
Reference voltage circuit Aug 18, 2021 Issued
Array ( [id] => 19086826 [patent_doc_number] => 20240113627 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-04 [patent_title] => IMPROVED PERFORMANCE OF FLYBACK AND AC/DC POWER CONVERTER SYSTEM [patent_app_type] => utility [patent_app_number] => 18/021152 [patent_app_country] => US [patent_app_date] => 2021-08-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 24429 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [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] => 18021152 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/021152
IMPROVED PERFORMANCE OF FLYBACK AND AC/DC POWER CONVERTER SYSTEM Aug 12, 2021 Pending
Array ( [id] => 18317973 [patent_doc_number] => 11632065 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-04-18 [patent_title] => System and method for providing grid-forming control of an inverter-based resource [patent_app_type] => utility [patent_app_number] => 17/400800 [patent_app_country] => US [patent_app_date] => 2021-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 8311 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 238 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17400800 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/400800
System and method for providing grid-forming control of an inverter-based resource Aug 11, 2021 Issued
Array ( [id] => 17415583 [patent_doc_number] => 20220050487 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-17 [patent_title] => CONTROL CIRCUIT OF POWER CONVERTER AND REFERENCE VOLTAGE ADJUSTING METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 17/396823 [patent_app_country] => US [patent_app_date] => 2021-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6036 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17396823 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/396823
Control circuit of power converter and reference voltage adjusting method thereof Aug 8, 2021 Issued
Array ( [id] => 17432394 [patent_doc_number] => 20220060104 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-24 [patent_title] => SWITCHING POWER SOURCE DEVICE, VEHICLE, AND CONTROL METHOD [patent_app_type] => utility [patent_app_number] => 17/395039 [patent_app_country] => US [patent_app_date] => 2021-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11626 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 190 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17395039 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/395039
Switching power source device, vehicle, and control method Aug 4, 2021 Issued
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