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] => 18414576 [patent_doc_number] => 11669116 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-06-06 [patent_title] => Low dropout regulator [patent_app_type] => utility [patent_app_number] => 17/304636 [patent_app_country] => US [patent_app_date] => 2021-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 31040 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 261 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17304636 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/304636
Low dropout regulator Jun 22, 2021 Issued
Array ( [id] => 17293951 [patent_doc_number] => 20210389790 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-16 [patent_title] => Voltage Regulator [patent_app_type] => utility [patent_app_number] => 17/348207 [patent_app_country] => US [patent_app_date] => 2021-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5064 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17348207 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/348207
Voltage regulator Jun 14, 2021 Issued
Array ( [id] => 17131120 [patent_doc_number] => 20210305889 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-30 [patent_title] => ACTIVE CLAMP CIRCUIT [patent_app_type] => utility [patent_app_number] => 17/304042 [patent_app_country] => US [patent_app_date] => 2021-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5033 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17304042 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/304042
Active clamp circuit Jun 13, 2021 Issued
Array ( [id] => 18292763 [patent_doc_number] => 11621639 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-04-04 [patent_title] => Switching regulator and operating method [patent_app_type] => utility [patent_app_number] => 17/329226 [patent_app_country] => US [patent_app_date] => 2021-05-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 20 [patent_no_of_words] => 9291 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17329226 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/329226
Switching regulator and operating method May 24, 2021 Issued
Array ( [id] => 17954884 [patent_doc_number] => 11480989 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-10-25 [patent_title] => High accuracy zener based voltage reference circuit [patent_app_type] => utility [patent_app_number] => 17/322175 [patent_app_country] => US [patent_app_date] => 2021-05-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 4187 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17322175 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/322175
High accuracy zener based voltage reference circuit May 16, 2021 Issued
Array ( [id] => 17517344 [patent_doc_number] => 11296509 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-04-05 [patent_title] => Zero-sequence current balancer with a real power injector for a three-phase power system [patent_app_type] => utility [patent_app_number] => 17/306109 [patent_app_country] => US [patent_app_date] => 2021-05-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 5209 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17306109 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/306109
Zero-sequence current balancer with a real power injector for a three-phase power system May 2, 2021 Issued
Array ( [id] => 18098321 [patent_doc_number] => 20220416662 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-29 [patent_title] => Power Supply Circuit [patent_app_type] => utility [patent_app_number] => 17/777817 [patent_app_country] => US [patent_app_date] => 2021-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10347 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17777817 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/777817
Power supply circuit Apr 27, 2021 Issued
Array ( [id] => 19109095 [patent_doc_number] => 11962213 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-16 [patent_title] => Linear motor [patent_app_type] => utility [patent_app_number] => 17/241076 [patent_app_country] => US [patent_app_date] => 2021-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 3535 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17241076 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/241076
Linear motor Apr 26, 2021 Issued
Array ( [id] => 19223542 [patent_doc_number] => 20240188246 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-06 [patent_title] => CAPACITOR BOARD UNIT AND POWER CONVERSION DEVICE [patent_app_type] => utility [patent_app_number] => 18/282914 [patent_app_country] => US [patent_app_date] => 2021-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9191 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 429 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18282914 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/282914
Capacitor board unit and power conversion device Apr 26, 2021 Issued
Array ( [id] => 17964461 [patent_doc_number] => 20220345042 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-27 [patent_title] => Hybrid Power Converters [patent_app_type] => utility [patent_app_number] => 17/239985 [patent_app_country] => US [patent_app_date] => 2021-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5573 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -30 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17239985 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/239985
Hybrid power converters Apr 25, 2021 Issued
Array ( [id] => 17772905 [patent_doc_number] => 11404863 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-08-02 [patent_title] => Power supplies with limited power protection and relevant control methods [patent_app_type] => utility [patent_app_number] => 17/223562 [patent_app_country] => US [patent_app_date] => 2021-04-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 3290 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [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] => 17223562 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/223562
Power supplies with limited power protection and relevant control methods Apr 5, 2021 Issued
Array ( [id] => 16982298 [patent_doc_number] => 20210226535 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-07-22 [patent_title] => PEAK-BUCK PEAK-BOOST CURRENT-MODE CONTROL FOR SWITCHED STEP-UP STEP-DOWN REGULATORS [patent_app_type] => utility [patent_app_number] => 17/220622 [patent_app_country] => US [patent_app_date] => 2021-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4556 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 203 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17220622 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/220622
Peak-buck peak-boost current-mode control for switched step-up step-down regulators Mar 31, 2021 Issued
Array ( [id] => 17934029 [patent_doc_number] => 20220329155 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-13 [patent_title] => SINGLE-INDUCTOR MULTIPLE OUTPUT (SIMO) SWITCHING POWER SUPPLY HAVING OFFSET COMMON-MODE VOLTAGE FOR OPERATING A CLASS-D AUDIO AMPLIFIER [patent_app_type] => utility [patent_app_number] => 17/218992 [patent_app_country] => US [patent_app_date] => 2021-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7534 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17218992 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/218992
Single-inductor multiple output (SIMO) switching power supply having offset common-mode voltage for operating a class-d audio amplifier Mar 30, 2021 Issued
Array ( [id] => 17901669 [patent_doc_number] => 20220311331 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-29 [patent_title] => ADAPTIVE ENERGY STORAGE CIRCUIT [patent_app_type] => utility [patent_app_number] => 17/215100 [patent_app_country] => US [patent_app_date] => 2021-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2975 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17215100 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/215100
ADAPTIVE ENERGY STORAGE CIRCUIT Mar 28, 2021 Abandoned
Array ( [id] => 17100791 [patent_doc_number] => 20210288582 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-16 [patent_title] => NANOSECOND PULSER BIAS COMPENSATION [patent_app_type] => utility [patent_app_number] => 17/213230 [patent_app_country] => US [patent_app_date] => 2021-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15225 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17213230 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/213230
Nanosecond pulser bias compensation Mar 25, 2021 Issued
Array ( [id] => 17623775 [patent_doc_number] => 11342844 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-05-24 [patent_title] => Circuits for DC voltage converters [patent_app_type] => utility [patent_app_number] => 17/212651 [patent_app_country] => US [patent_app_date] => 2021-03-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 6556 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 551 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17212651 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/212651
Circuits for DC voltage converters Mar 24, 2021 Issued
Array ( [id] => 17567307 [patent_doc_number] => 20220131456 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-28 [patent_title] => Gate Drive Apparatus and Control Method for Switched Capacitor Converter [patent_app_type] => utility [patent_app_number] => 17/208605 [patent_app_country] => US [patent_app_date] => 2021-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6156 [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] => 17208605 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/208605
Gate drive apparatus and control method for switched capacitor converter Mar 21, 2021 Issued
Array ( [id] => 17183436 [patent_doc_number] => 20210330321 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-10-28 [patent_title] => SYSTEMS AND METHODS FOR CONTROLLING A SEGMENTED CIRCUIT [patent_app_type] => utility [patent_app_number] => 17/208594 [patent_app_country] => US [patent_app_date] => 2021-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 22607 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17208594 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/208594
SYSTEMS AND METHODS FOR CONTROLLING A SEGMENTED CIRCUIT Mar 21, 2021 Abandoned
Array ( [id] => 17123978 [patent_doc_number] => 20210298746 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-30 [patent_title] => SYSTEMS AND METHODS FOR CONTROLLING A SEGMENTED CIRCUIT [patent_app_type] => utility [patent_app_number] => 17/208613 [patent_app_country] => US [patent_app_date] => 2021-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 22604 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17208613 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/208613
Systems and methods for controlling a segmented circuit Mar 21, 2021 Issued
Array ( [id] => 17123977 [patent_doc_number] => 20210298745 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-30 [patent_title] => SYSTEMS AND METHODS FOR CONTROLLING A SEGMENTED CIRCUIT [patent_app_type] => utility [patent_app_number] => 17/208606 [patent_app_country] => US [patent_app_date] => 2021-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 22607 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17208606 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/208606
SYSTEMS AND METHODS FOR CONTROLLING A SEGMENTED CIRCUIT Mar 21, 2021 Abandoned
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