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] => 18250349 [patent_doc_number] => 20230077388 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-16 [patent_title] => ON-THE-FLY TOPOLOGY MORPHING FOR FREQUENCY-MULTIPLIER HALF-BRIDGE OPERATION [patent_app_type] => utility [patent_app_number] => 17/821191 [patent_app_country] => US [patent_app_date] => 2022-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5219 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 17821191 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/821191
On-the-fly topology morphing for frequency-multiplier half-bridge operation Aug 21, 2022 Issued
Array ( [id] => 19568234 [patent_doc_number] => 12143017 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-12 [patent_title] => Energy accumulator apparatus and associated methods [patent_app_type] => utility [patent_app_number] => 17/876771 [patent_app_country] => US [patent_app_date] => 2022-07-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 8118 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 313 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17876771 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/876771
Energy accumulator apparatus and associated methods Jul 28, 2022 Issued
Array ( [id] => 18270232 [patent_doc_number] => 20230091474 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-23 [patent_title] => POWER SUPPLY CONVERSION TOPOLOGY OF MULTIPHASE SWITCH CAPACITOR RESONANT CAVITY CONVERSION CIRCUIT WITH FULL-WAVE OUTPUT RECTIFICATION AND POWER SUPPLY CONVERSION STRUCTURES BASED ON POWER SUPPLY CONVERSION TOPOLOGY [patent_app_type] => utility [patent_app_number] => 17/875541 [patent_app_country] => US [patent_app_date] => 2022-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5376 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 473 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17875541 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/875541
POWER SUPPLY CONVERSION TOPOLOGY OF MULTIPHASE SWITCH CAPACITOR RESONANT CAVITY CONVERSION CIRCUIT WITH FULL-WAVE OUTPUT RECTIFICATION AND POWER SUPPLY CONVERSION STRUCTURES BASED ON POWER SUPPLY CONVERSION TOPOLOGY Jul 27, 2022 Abandoned
Array ( [id] => 20333269 [patent_doc_number] => 12463556 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-04 [patent_title] => Rectifier control with adaptive turn-off [patent_app_type] => utility [patent_app_number] => 17/872341 [patent_app_country] => US [patent_app_date] => 2022-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 0 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17872341 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/872341
Rectifier control with adaptive turn-off Jul 24, 2022 Issued
Array ( [id] => 17986737 [patent_doc_number] => 20220352774 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-03 [patent_title] => ARMATURE AND PRODUCTION METHOD OF THE SAME [patent_app_type] => utility [patent_app_number] => 17/864893 [patent_app_country] => US [patent_app_date] => 2022-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 27282 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17864893 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/864893
Armature and production method of the same Jul 13, 2022 Issued
Array ( [id] => 19469017 [patent_doc_number] => 20240322687 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-26 [patent_title] => POWER CONVERSION DEVICE HAVING MULTI-LEVEL STRUCTURE [patent_app_type] => utility [patent_app_number] => 18/574437 [patent_app_country] => US [patent_app_date] => 2022-07-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8266 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18574437 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/574437
POWER CONVERSION DEVICE HAVING MULTI-LEVEL STRUCTURE Jul 3, 2022 Pending
Array ( [id] => 19322036 [patent_doc_number] => 20240243583 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-18 [patent_title] => POWER CONVERSION DEVICE HAVING MULTI-LEVEL STRUCTURE [patent_app_type] => utility [patent_app_number] => 18/574140 [patent_app_country] => US [patent_app_date] => 2022-07-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6218 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18574140 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/574140
POWER CONVERSION DEVICE HAVING MULTI-LEVEL STRUCTURE Jun 30, 2022 Pending
Array ( [id] => 19453412 [patent_doc_number] => 20240313542 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-19 [patent_title] => SYSTEM AND METHOD FOR STABILIZING A POWER DISTRIBUTION NETWORK [patent_app_type] => utility [patent_app_number] => 18/569474 [patent_app_country] => US [patent_app_date] => 2022-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13591 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18569474 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/569474
SYSTEM AND METHOD FOR STABILIZING A POWER DISTRIBUTION NETWORK Jun 22, 2022 Pending
Array ( [id] => 20375674 [patent_doc_number] => 12483119 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-25 [patent_title] => Power on/off control circuit and electronic device [patent_app_type] => utility [patent_app_number] => 18/565632 [patent_app_country] => US [patent_app_date] => 2022-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2264 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 242 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18565632 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/565632
Power on/off control circuit and electronic device May 30, 2022 Issued
Array ( [id] => 17855971 [patent_doc_number] => 20220286014 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-08 [patent_title] => ROTATING MOTOR AND FAN [patent_app_type] => utility [patent_app_number] => 17/826581 [patent_app_country] => US [patent_app_date] => 2022-05-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7134 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 214 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17826581 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/826581
Rotating motor and fan May 26, 2022 Issued
Array ( [id] => 19568240 [patent_doc_number] => 12143023 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-12 [patent_title] => Drive scheme for secondary-controlled active clamp flyback (ACF) mode [patent_app_type] => utility [patent_app_number] => 17/748616 [patent_app_country] => US [patent_app_date] => 2022-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 17363 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [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] => 17748616 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/748616
Drive scheme for secondary-controlled active clamp flyback (ACF) mode May 18, 2022 Issued
Array ( [id] => 19230107 [patent_doc_number] => 12009752 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-11 [patent_title] => Converter and converting method thereof [patent_app_type] => utility [patent_app_number] => 17/748052 [patent_app_country] => US [patent_app_date] => 2022-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5600 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 292 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17748052 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/748052
Converter and converting method thereof May 18, 2022 Issued
Array ( [id] => 19766358 [patent_doc_number] => 12224666 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-11 [patent_title] => Dc-dc converter control circuit [patent_app_type] => utility [patent_app_number] => 17/748772 [patent_app_country] => US [patent_app_date] => 2022-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4248 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17748772 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/748772
Dc-dc converter control circuit May 18, 2022 Issued
Array ( [id] => 20111934 [patent_doc_number] => 12362674 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-15 [patent_title] => Control circuit and switching power source [patent_app_type] => utility [patent_app_number] => 17/746908 [patent_app_country] => US [patent_app_date] => 2022-05-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3666 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17746908 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/746908
Control circuit and switching power source May 16, 2022 Issued
Array ( [id] => 19375284 [patent_doc_number] => 12066849 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-08-20 [patent_title] => Semiconductor device and memory device comprising the same [patent_app_type] => utility [patent_app_number] => 17/744067 [patent_app_country] => US [patent_app_date] => 2022-05-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 19 [patent_no_of_words] => 9736 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17744067 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/744067
Semiconductor device and memory device comprising the same May 12, 2022 Issued
Array ( [id] => 18040967 [patent_doc_number] => 20220385184 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-01 [patent_title] => POWER CONVERTER [patent_app_type] => utility [patent_app_number] => 17/743646 [patent_app_country] => US [patent_app_date] => 2022-05-13 [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] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17743646 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/743646
POWER CONVERTER May 12, 2022 Pending
Array ( [id] => 18600713 [patent_doc_number] => 20230275516 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-31 [patent_title] => FORWARD MODE SOFT SWITCHING POWER CONVERTER [patent_app_type] => utility [patent_app_number] => 17/662777 [patent_app_country] => US [patent_app_date] => 2022-05-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8080 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17662777 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/662777
Forward mode soft switching power converter May 9, 2022 Issued
Array ( [id] => 19336170 [patent_doc_number] => 20240250600 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => SYSTEM AND METHOD FOR ZERO VOLTAGE SWITCHING IN A POWER CONVERTER [patent_app_type] => utility [patent_app_number] => 18/561993 [patent_app_country] => US [patent_app_date] => 2022-05-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12750 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18561993 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/561993
SYSTEM AND METHOD FOR ZERO VOLTAGE SWITCHING IN A POWER CONVERTER May 5, 2022 Issued
Array ( [id] => 17994136 [patent_doc_number] => 20220360173 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-10 [patent_title] => SWITCHING POWER CONVERTER CIRCUIT, CLOCK GENERATOR CIRCUIT AND CLOCK GENERATION METHOD HAVING SPREAD SPECTRUM [patent_app_type] => utility [patent_app_number] => 17/736374 [patent_app_country] => US [patent_app_date] => 2022-05-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6619 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -30 [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] => 17736374 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/736374
Switching power converter circuit, clock generator circuit and clock generation method having spread spectrum May 3, 2022 Issued
Array ( [id] => 19436684 [patent_doc_number] => 20240305182 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-12 [patent_title] => SELECTIVE VOLTAGE BOOSTING FOR A RADIO SYSTEM [patent_app_type] => utility [patent_app_number] => 18/576297 [patent_app_country] => US [patent_app_date] => 2022-05-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11085 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 326 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18576297 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/576297
SELECTIVE VOLTAGE BOOSTING FOR A RADIO SYSTEM May 3, 2022 Pending
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