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] => 19421467 [patent_doc_number] => 20240297591 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-05 [patent_title] => FULL-BRIDGE SERIES RESONANT CONVERTER [patent_app_type] => utility [patent_app_number] => 18/364748 [patent_app_country] => US [patent_app_date] => 2023-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4568 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18364748 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/364748
FULL-BRIDGE SERIES RESONANT CONVERTER Aug 2, 2023 Pending
Array ( [id] => 20508201 [patent_doc_number] => 12542483 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-03 [patent_title] => Switched-capacitor voltage converter [patent_app_type] => utility [patent_app_number] => 18/365178 [patent_app_country] => US [patent_app_date] => 2023-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2435 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 205 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18365178 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/365178
Switched-capacitor voltage converter Aug 2, 2023 Issued
Array ( [id] => 18959741 [patent_doc_number] => 20240048068 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-08 [patent_title] => STABLE CONTROL SYSTEMS AND METHODS EMPLOYING ONE-WAY RECTIFICATION AND INTERLEAVED BOOSTER [patent_app_type] => utility [patent_app_number] => 18/364059 [patent_app_country] => US [patent_app_date] => 2023-08-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8605 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 18364059 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/364059
Stable control systems and methods employing one-way rectification and interleaved booster Aug 1, 2023 Issued
Array ( [id] => 18975766 [patent_doc_number] => 20240055858 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-15 [patent_title] => METHOD AND CIRCUIT FOR AN INTEGRATED DC CONVERTER IN AN AC BATTERY [patent_app_type] => utility [patent_app_number] => 18/362979 [patent_app_country] => US [patent_app_date] => 2023-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5001 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 257 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18362979 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/362979
Method and circuit for an integrated DC converter in an AC battery Jul 31, 2023 Issued
Array ( [id] => 19117106 [patent_doc_number] => 20240128856 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-18 [patent_title] => HANDLING CONNECTION FAULTS OF A BOOTSTRAP CAPACITOR IN A SWITCHING CONVERTER [patent_app_type] => utility [patent_app_number] => 18/360881 [patent_app_country] => US [patent_app_date] => 2023-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7577 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18360881 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/360881
Handling connection faults of a bootstrap capacitor in a switching converter Jul 27, 2023 Issued
Array ( [id] => 19750081 [patent_doc_number] => 20250038646 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => CORRECTION CIRCUIT [patent_app_type] => utility [patent_app_number] => 18/361240 [patent_app_country] => US [patent_app_date] => 2023-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9149 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18361240 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/361240
CORRECTION CIRCUIT Jul 27, 2023 Pending
Array ( [id] => 18944279 [patent_doc_number] => 20240039418 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => DYNAMIC TRANSFORMER LOADING SYSTEMS, TRANSFORMER LOAD CONTROLLER AND METHODS OF STAGING A PLURALITY OF TRANSFORMERS IN ACCORDANCE WITH CURRENT LOAD REQUIREMENTS OF A CHANGING LOAD [patent_app_type] => utility [patent_app_number] => 18/226391 [patent_app_country] => US [patent_app_date] => 2023-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5255 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18226391 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/226391
DYNAMIC TRANSFORMER LOADING SYSTEMS, TRANSFORMER LOAD CONTROLLER AND METHODS OF STAGING A PLURALITY OF TRANSFORMERS IN ACCORDANCE WITH CURRENT LOAD REQUIREMENTS OF A CHANGING LOAD Jul 25, 2023 Abandoned
Array ( [id] => 19393505 [patent_doc_number] => 20240283375 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-22 [patent_title] => PHASE AND AMPLITUDE IMPROVING METHOD AND SYSTEM THEREOF [patent_app_type] => utility [patent_app_number] => 18/226429 [patent_app_country] => US [patent_app_date] => 2023-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4965 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18226429 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/226429
Phase and amplitude improving method and system thereof Jul 25, 2023 Issued
Array ( [id] => 18944133 [patent_doc_number] => 20240039272 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => UNBALANCE PROTECTION FOR SHUNT CAPACITOR BANKS [patent_app_type] => utility [patent_app_number] => 18/355560 [patent_app_country] => US [patent_app_date] => 2023-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10759 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18355560 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/355560
Unbalance protection for shunt capacitor banks Jul 19, 2023 Issued
Array ( [id] => 19713303 [patent_doc_number] => 20250023445 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-16 [patent_title] => Bootstrap Apparatus and Control Method [patent_app_type] => utility [patent_app_number] => 18/221877 [patent_app_country] => US [patent_app_date] => 2023-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8718 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18221877 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/221877
Bootstrap apparatus and control method Jul 12, 2023 Issued
Array ( [id] => 20346415 [patent_doc_number] => 12470151 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-11 [patent_title] => Isolated switching converter with soft switching and control method thereof [patent_app_type] => utility [patent_app_number] => 18/350910 [patent_app_country] => US [patent_app_date] => 2023-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3295 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [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] => 18350910 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/350910
Isolated switching converter with soft switching and control method thereof Jul 11, 2023 Issued
Array ( [id] => 19710979 [patent_doc_number] => 20250021121 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-16 [patent_title] => Voltage Regulator with Voltage Rail Switching [patent_app_type] => utility [patent_app_number] => 18/349792 [patent_app_country] => US [patent_app_date] => 2023-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8529 [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] => 18349792 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/349792
Voltage Regulator with Voltage Rail Switching Jul 9, 2023 Abandoned
Array ( [id] => 18927829 [patent_doc_number] => 20240030833 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-25 [patent_title] => INVERTER AND CONTROL METHOD FOR INVERTER [patent_app_type] => utility [patent_app_number] => 18/349310 [patent_app_country] => US [patent_app_date] => 2023-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5995 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 294 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18349310 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/349310
INVERTER AND CONTROL METHOD FOR INVERTER Jul 9, 2023 Abandoned
Array ( [id] => 18899250 [patent_doc_number] => 20240014735 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-11 [patent_title] => PROTECTION OF SWITCHED CAPACITOR POWER CONVERTER [patent_app_type] => utility [patent_app_number] => 18/348924 [patent_app_country] => US [patent_app_date] => 2023-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9870 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -28 [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] => 18348924 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/348924
Protection of switched capacitor power converter Jul 6, 2023 Issued
Array ( [id] => 18896954 [patent_doc_number] => 20240012439 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-11 [patent_title] => POWER SUPPLY SYSTEM [patent_app_type] => utility [patent_app_number] => 18/346965 [patent_app_country] => US [patent_app_date] => 2023-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3192 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [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] => 18346965 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/346965
POWER SUPPLY SYSTEM Jul 4, 2023 Pending
Array ( [id] => 18883618 [patent_doc_number] => 20240006987 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-04 [patent_title] => BRIDGELESS DIGITAL CONTROL POWER FACTOR CORRECTION CIRCUIT [patent_app_type] => utility [patent_app_number] => 18/217308 [patent_app_country] => US [patent_app_date] => 2023-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4629 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 42 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18217308 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/217308
BRIDGELESS DIGITAL CONTROL POWER FACTOR CORRECTION CIRCUIT Jun 29, 2023 Abandoned
Array ( [id] => 18944251 [patent_doc_number] => 20240039390 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => SEMICONDUCTOR DEVICE [patent_app_type] => utility [patent_app_number] => 18/344842 [patent_app_country] => US [patent_app_date] => 2023-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5590 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18344842 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/344842
Semiconductor device Jun 28, 2023 Issued
Array ( [id] => 18730048 [patent_doc_number] => 20230344346 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-26 [patent_title] => DUAL MODE SUPPLY CIRCUIT AND METHOD [patent_app_type] => utility [patent_app_number] => 18/343425 [patent_app_country] => US [patent_app_date] => 2023-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10749 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18343425 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/343425
DUAL MODE SUPPLY CIRCUIT AND METHOD Jun 27, 2023 Pending
Array ( [id] => 20305807 [patent_doc_number] => 12451811 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-21 [patent_title] => Nanosecond pulser bias compensation [patent_app_type] => utility [patent_app_number] => 18/340841 [patent_app_country] => US [patent_app_date] => 2023-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 25 [patent_no_of_words] => 9580 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18340841 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/340841
Nanosecond pulser bias compensation Jun 23, 2023 Issued
Array ( [id] => 18812730 [patent_doc_number] => 20230387067 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-30 [patent_title] => INTEGRATED HALF-BRIDGE POWER CONVERTER [patent_app_type] => utility [patent_app_number] => 18/339123 [patent_app_country] => US [patent_app_date] => 2023-06-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13126 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 211 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18339123 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/339123
Integrated half-bridge power converter Jun 20, 2023 Issued
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