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] => 18840524 [patent_doc_number] => 11848610 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-12-19 [patent_title] => Low ripple pulse-skip mode control in switching mode power supplies [patent_app_type] => utility [patent_app_number] => 17/393103 [patent_app_country] => US [patent_app_date] => 2021-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 5735 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17393103 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/393103
Low ripple pulse-skip mode control in switching mode power supplies Aug 2, 2021 Issued
Array ( [id] => 17374530 [patent_doc_number] => 20220029582 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-27 [patent_title] => PHOTOVOLTAIC INVERTER, PHOTOVOLTAIC SYSTEM, AND METHOD FOR CONTROLLING DISCHARGING [patent_app_type] => utility [patent_app_number] => 17/380418 [patent_app_country] => US [patent_app_date] => 2021-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9763 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17380418 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/380418
Photovoltaic inverter, photovoltaic system, and method for controlling discharging Jul 19, 2021 Issued
Array ( [id] => 17709526 [patent_doc_number] => 20220209534 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-30 [patent_title] => POWER CONTROL DEVICE AND CONTROL METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 17/380213 [patent_app_country] => US [patent_app_date] => 2021-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3717 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17380213 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/380213
Power control device and control method thereof Jul 19, 2021 Issued
Array ( [id] => 18447394 [patent_doc_number] => 11682973 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-06-20 [patent_title] => Advanced constant off-time control for four-switch buck-boost converter [patent_app_type] => utility [patent_app_number] => 17/378111 [patent_app_country] => US [patent_app_date] => 2021-07-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 30 [patent_figures_cnt] => 30 [patent_no_of_words] => 14622 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17378111 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/378111
Advanced constant off-time control for four-switch buck-boost converter Jul 15, 2021 Issued
Array ( [id] => 19980664 [patent_doc_number] => 12348155 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-01 [patent_title] => Power conversion device [patent_app_type] => utility [patent_app_number] => 18/042895 [patent_app_country] => US [patent_app_date] => 2021-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 4838 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [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] => 18042895 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/042895
Power conversion device Jul 13, 2021 Issued
Array ( [id] => 18144185 [patent_doc_number] => 20230018036 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-19 [patent_title] => POWER SUPPLY WITH INTEGRATED VOLTAGE REGULATOR AND CURRENT LIMITER AND METHOD [patent_app_type] => utility [patent_app_number] => 17/374228 [patent_app_country] => US [patent_app_date] => 2021-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8439 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17374228 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/374228
Power supply with integrated voltage regulator and current limiter and method Jul 12, 2021 Issued
Array ( [id] => 18616450 [patent_doc_number] => 20230283189 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-07 [patent_title] => Soft Start Circuit and Power Supply Circuit [patent_app_type] => utility [patent_app_number] => 18/016555 [patent_app_country] => US [patent_app_date] => 2021-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5401 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18016555 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/016555
Soft start circuit and power supply circuit Jul 11, 2021 Issued
Array ( [id] => 18431997 [patent_doc_number] => 11677231 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-06-13 [patent_title] => Single-phase reclosing method, device and storage medium for AC/DC system [patent_app_type] => utility [patent_app_number] => 17/372269 [patent_app_country] => US [patent_app_date] => 2021-07-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 8361 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 179 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17372269 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/372269
Single-phase reclosing method, device and storage medium for AC/DC system Jul 8, 2021 Issued
Array ( [id] => 18105995 [patent_doc_number] => 11545901 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-01-03 [patent_title] => Control system for buck converter [patent_app_type] => utility [patent_app_number] => 17/370188 [patent_app_country] => US [patent_app_date] => 2021-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 24 [patent_no_of_words] => 10846 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 562 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17370188 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/370188
Control system for buck converter Jul 7, 2021 Issued
Array ( [id] => 19312962 [patent_doc_number] => 12038773 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-07-16 [patent_title] => Flipped gate voltage reference and method of using [patent_app_type] => utility [patent_app_number] => 17/370733 [patent_app_country] => US [patent_app_date] => 2021-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 7203 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17370733 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/370733
Flipped gate voltage reference and method of using Jul 7, 2021 Issued
Array ( [id] => 20469761 [patent_doc_number] => 12525804 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-13 [patent_title] => Virtual synchronous machines with improved voltage and frequency control [patent_app_type] => utility [patent_app_number] => 18/008454 [patent_app_country] => US [patent_app_date] => 2021-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 1167 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18008454 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/008454
Virtual synchronous machines with improved voltage and frequency control Jul 6, 2021 Issued
Array ( [id] => 18054552 [patent_doc_number] => 11527949 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-12-13 [patent_title] => Protection circuit and operation method thereof [patent_app_type] => utility [patent_app_number] => 17/369595 [patent_app_country] => US [patent_app_date] => 2021-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4235 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 287 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17369595 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/369595
Protection circuit and operation method thereof Jul 6, 2021 Issued
Array ( [id] => 18515099 [patent_doc_number] => 20230231375 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-20 [patent_title] => WIND TURBINE GENERATOR FAULT PROTECTION SYSTEM [patent_app_type] => utility [patent_app_number] => 18/004879 [patent_app_country] => US [patent_app_date] => 2021-07-06 [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] => -16 [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] => 18004879 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/004879
Wind turbine generator fault protection system Jul 5, 2021 Issued
Array ( [id] => 18541320 [patent_doc_number] => 20230246436 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-03 [patent_title] => HIGH-RELIABILITY MULTIPHASE POWER SUPPLY SYSTEM AND METHOD [patent_app_type] => utility [patent_app_number] => 18/024735 [patent_app_country] => US [patent_app_date] => 2021-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3573 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 216 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18024735 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/024735
High-reliability multiphase power supply system and method Jun 29, 2021 Issued
Array ( [id] => 17893612 [patent_doc_number] => 11456598 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-09-27 [patent_title] => Two wire power delivery system for mobile devices with passive orientation detection [patent_app_type] => utility [patent_app_number] => 17/362930 [patent_app_country] => US [patent_app_date] => 2021-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 13803 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 300 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17362930 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/362930
Two wire power delivery system for mobile devices with passive orientation detection Jun 28, 2021 Issued
Array ( [id] => 17893612 [patent_doc_number] => 11456598 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-09-27 [patent_title] => Two wire power delivery system for mobile devices with passive orientation detection [patent_app_type] => utility [patent_app_number] => 17/362930 [patent_app_country] => US [patent_app_date] => 2021-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 13803 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 300 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17362930 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/362930
Two wire power delivery system for mobile devices with passive orientation detection Jun 28, 2021 Issued
Array ( [id] => 17893612 [patent_doc_number] => 11456598 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-09-27 [patent_title] => Two wire power delivery system for mobile devices with passive orientation detection [patent_app_type] => utility [patent_app_number] => 17/362930 [patent_app_country] => US [patent_app_date] => 2021-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 13803 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 300 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17362930 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/362930
Two wire power delivery system for mobile devices with passive orientation detection Jun 28, 2021 Issued
Array ( [id] => 17893612 [patent_doc_number] => 11456598 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-09-27 [patent_title] => Two wire power delivery system for mobile devices with passive orientation detection [patent_app_type] => utility [patent_app_number] => 17/362930 [patent_app_country] => US [patent_app_date] => 2021-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 13803 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 300 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17362930 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/362930
Two wire power delivery system for mobile devices with passive orientation detection Jun 28, 2021 Issued
Array ( [id] => 18598448 [patent_doc_number] => 20230273247 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-31 [patent_title] => RIPPLE DETECTION DEVICE AND RIPPLE SUPPRESSION DEVICE [patent_app_type] => utility [patent_app_number] => 18/013236 [patent_app_country] => US [patent_app_date] => 2021-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13231 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 275 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18013236 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/013236
Ripple detection device and ripple suppression device Jun 27, 2021 Issued
Array ( [id] => 18098320 [patent_doc_number] => 20220416661 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-29 [patent_title] => SIMBO BUCK-BOOST INVERTING CONVERTER AND CONTROL METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 17/358792 [patent_app_country] => US [patent_app_date] => 2021-06-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4217 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17358792 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/358792
SIMBO BUCK-BOOST INVERTING CONVERTER AND CONTROL METHOD THEREOF Jun 24, 2021 Abandoned
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