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] => 20223430 [patent_doc_number] => 20250286361 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-11 [patent_title] => PROTECTION AND SENSING SYSTEMS AND METHODS [patent_app_type] => utility [patent_app_number] => 19/073148 [patent_app_country] => US [patent_app_date] => 2025-03-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2855 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 19073148 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/073148
PROTECTION AND SENSING SYSTEMS AND METHODS Mar 6, 2025 Pending
Array ( [id] => 19789015 [patent_doc_number] => 20250062694 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-20 [patent_title] => DRIVING CIRCUIT AND MULTIPHASE VOLTAGE REGULATOR [patent_app_type] => utility [patent_app_number] => 18/806689 [patent_app_country] => US [patent_app_date] => 2024-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6875 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -30 [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] => 18806689 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/806689
DRIVING CIRCUIT AND MULTIPHASE VOLTAGE REGULATOR Aug 14, 2024 Pending
Array ( [id] => 19788998 [patent_doc_number] => 20250062677 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-20 [patent_title] => POWER CONVERSION DEVICE [patent_app_type] => utility [patent_app_number] => 18/798857 [patent_app_country] => US [patent_app_date] => 2024-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12494 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [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] => 18798857 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/798857
POWER CONVERSION DEVICE Aug 8, 2024 Pending
Array ( [id] => 20182800 [patent_doc_number] => 20250266758 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-21 [patent_title] => POWER CONVERSION CIRCUIT AUTOMATICALLY SWITCHING BETWEEN FLYBACK MODE AND RESONANT MODE AND CONTROL METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/792930 [patent_app_country] => US [patent_app_date] => 2024-08-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2232 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18792930 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/792930
POWER CONVERSION CIRCUIT AUTOMATICALLY SWITCHING BETWEEN FLYBACK MODE AND RESONANT MODE AND CONTROL METHOD THEREOF Aug 1, 2024 Pending
Array ( [id] => 19513926 [patent_doc_number] => 20240345612 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-17 [patent_title] => FLIPPED GATE VOLTAGE REFERENCE CIRCUIT AND METHOD [patent_app_type] => utility [patent_app_number] => 18/756323 [patent_app_country] => US [patent_app_date] => 2024-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7845 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 215 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18756323 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/756323
FLIPPED GATE VOLTAGE REFERENCE CIRCUIT AND METHOD Jun 26, 2024 Pending
Array ( [id] => 20423507 [patent_doc_number] => 20250385592 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-18 [patent_title] => SLOPE-COMPENSATION CLAMP CIRCUIT FOR SWITCHING CONVERTER SYSTEM [patent_app_type] => utility [patent_app_number] => 18/746755 [patent_app_country] => US [patent_app_date] => 2024-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3169 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18746755 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/746755
SLOPE-COMPENSATION CLAMP CIRCUIT FOR SWITCHING CONVERTER SYSTEM Jun 17, 2024 Pending
Array ( [id] => 19568227 [patent_doc_number] => 12143010 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-12 [patent_title] => Protection of switched capacitor power converter [patent_app_type] => utility [patent_app_number] => 18/743042 [patent_app_country] => US [patent_app_date] => 2024-06-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 24 [patent_no_of_words] => 10070 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 169 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18743042 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/743042
Protection of switched capacitor power converter Jun 12, 2024 Issued
Array ( [id] => 19662767 [patent_doc_number] => 20240429832 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-26 [patent_title] => POWER CONVERTER SYSTEM [patent_app_type] => utility [patent_app_number] => 18/741109 [patent_app_country] => US [patent_app_date] => 2024-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11286 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 18741109 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/741109
POWER CONVERTER SYSTEM Jun 11, 2024 Pending
Array ( [id] => 20064113 [patent_doc_number] => 20250202335 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-19 [patent_title] => POWER CONVERSION CIRCUIT [patent_app_type] => utility [patent_app_number] => 18/647084 [patent_app_country] => US [patent_app_date] => 2024-04-26 [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] => -9 [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] => 18647084 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/647084
POWER CONVERSION CIRCUIT Apr 25, 2024 Pending
Array ( [id] => 19485093 [patent_doc_number] => 20240333135 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-03 [patent_title] => INVERTER APPARATUS AND CONTROL METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/617721 [patent_app_country] => US [patent_app_date] => 2024-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11228 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18617721 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/617721
INVERTER APPARATUS AND CONTROL METHOD THEREOF Mar 26, 2024 Pending
Array ( [id] => 19516467 [patent_doc_number] => 20240348153 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-17 [patent_title] => STATE FEED-BACK CONTROLLER FOR CONTROLLING A POWER CONVERTER [patent_app_type] => utility [patent_app_number] => 18/618841 [patent_app_country] => US [patent_app_date] => 2024-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10230 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 306 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18618841 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/618841
STATE FEED-BACK CONTROLLER FOR CONTROLLING A POWER CONVERTER Mar 26, 2024 Pending
Array ( [id] => 19453527 [patent_doc_number] => 20240313657 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-19 [patent_title] => SWITCH-MODE POWER CONVERTERS WITH CONTROL OF TURNING ON AND OFF ONE TRANSISTOR BEFORE TURNING ON ANOTHER TRANSISTOR [patent_app_type] => utility [patent_app_number] => 18/601567 [patent_app_country] => US [patent_app_date] => 2024-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 23781 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 260 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18601567 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/601567
SWITCH-MODE POWER CONVERTERS WITH CONTROL OF TURNING ON AND OFF ONE TRANSISTOR BEFORE TURNING ON ANOTHER TRANSISTOR Mar 10, 2024 Pending
Array ( [id] => 19662749 [patent_doc_number] => 20240429814 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-26 [patent_title] => POWER CONVERSION DEVICE [patent_app_type] => utility [patent_app_number] => 18/601276 [patent_app_country] => US [patent_app_date] => 2024-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6352 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 46 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18601276 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/601276
POWER CONVERSION DEVICE Mar 10, 2024 Pending
Array ( [id] => 19436707 [patent_doc_number] => 20240305205 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-12 [patent_title] => POWER SUPPLY CONTROL DEVICE [patent_app_type] => utility [patent_app_number] => 18/597407 [patent_app_country] => US [patent_app_date] => 2024-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17661 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18597407 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/597407
POWER SUPPLY CONTROL DEVICE Mar 5, 2024 Pending
Array ( [id] => 19436709 [patent_doc_number] => 20240305207 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-12 [patent_title] => CONTROL CIRCUIT FOR A RESONANT CIRCUIT AND THE METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/596081 [patent_app_country] => US [patent_app_date] => 2024-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8302 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18596081 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/596081
CONTROL CIRCUIT FOR A RESONANT CIRCUIT AND THE METHOD THEREOF Mar 4, 2024 Pending
Array ( [id] => 20168274 [patent_doc_number] => 20250260321 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-14 [patent_title] => DISCHARGE UNIT [patent_app_type] => utility [patent_app_number] => 18/440709 [patent_app_country] => US [patent_app_date] => 2024-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5736 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 37 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18440709 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/440709
DISCHARGE UNIT Feb 12, 2024 Pending
Array ( [id] => 20153914 [patent_doc_number] => 20250253752 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-07 [patent_title] => HYSTERETIC CONTROL FOR LOAD TRANSIENT IMPROVEMENT IN PEAK CURRENT CONTROL MODE POWER CONVERTER ARCHITECTURES [patent_app_type] => utility [patent_app_number] => 18/431802 [patent_app_country] => US [patent_app_date] => 2024-02-02 [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] => -17 [patent_words_short_claim] => 50 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18431802 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/431802
HYSTERETIC CONTROL FOR LOAD TRANSIENT IMPROVEMENT IN PEAK CURRENT CONTROL MODE POWER CONVERTER ARCHITECTURES Feb 1, 2024 Pending
Array ( [id] => 20137739 [patent_doc_number] => 20250244783 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-31 [patent_title] => Source Follower Type Regulator with DAC feedback [patent_app_type] => utility [patent_app_number] => 18/428356 [patent_app_country] => US [patent_app_date] => 2024-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2077 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18428356 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/428356
Source Follower Type Regulator with DAC feedback Jan 30, 2024 Pending
Array ( [id] => 19175990 [patent_doc_number] => 20240161964 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-16 [patent_title] => Inverter Apparatus [patent_app_type] => utility [patent_app_number] => 18/419978 [patent_app_country] => US [patent_app_date] => 2024-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11540 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18419978 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/419978
Inverter Apparatus Jan 22, 2024 Pending
Array ( [id] => 19147011 [patent_doc_number] => 20240146056 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-02 [patent_title] => FAULT CLEARING IN ELECTRICAL SYSTEMS WITH INJECTED SIGNAL [patent_app_type] => utility [patent_app_number] => 18/405424 [patent_app_country] => US [patent_app_date] => 2024-01-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4895 [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] => 18405424 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/405424
FAULT CLEARING IN ELECTRICAL SYSTEMS WITH INJECTED SIGNAL Jan 4, 2024 Pending
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