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] => 18533811 [patent_doc_number] => 20230238888 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-27 [patent_title] => SWITCHING REGULATOR AND OPERATING METHOD [patent_app_type] => utility [patent_app_number] => 18/130006 [patent_app_country] => US [patent_app_date] => 2023-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9299 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18130006 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/130006
Switching regulator and operating method Apr 2, 2023 Issued
Array ( [id] => 19468892 [patent_doc_number] => 20240322562 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-26 [patent_title] => BATTERY HOT SWAPPING [patent_app_type] => utility [patent_app_number] => 18/188971 [patent_app_country] => US [patent_app_date] => 2023-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14976 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [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] => 18188971 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/188971
BATTERY HOT SWAPPING Mar 22, 2023 Pending
Array ( [id] => 18555866 [patent_doc_number] => 20230253883 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-10 [patent_title] => Hybrid Buck-Boost Power Converter [patent_app_type] => utility [patent_app_number] => 18/125354 [patent_app_country] => US [patent_app_date] => 2023-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7528 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18125354 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/125354
Hybrid Buck-Boost Power Converter Mar 22, 2023 Abandoned
Array ( [id] => 19466085 [patent_doc_number] => 20240319755 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-26 [patent_title] => LOW QUIESCENT CURRENT AND FAST TRANSIENT VOLTAGE REGULATOR WITH TRANSCONDUCTANCE BOOSTER [patent_app_type] => utility [patent_app_number] => 18/188891 [patent_app_country] => US [patent_app_date] => 2023-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5133 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18188891 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/188891
LOW QUIESCENT CURRENT AND FAST TRANSIENT VOLTAGE REGULATOR WITH TRANSCONDUCTANCE BOOSTER Mar 22, 2023 Pending
Array ( [id] => 20318359 [patent_doc_number] => 12456917 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-28 [patent_title] => Protection device [patent_app_type] => utility [patent_app_number] => 18/125566 [patent_app_country] => US [patent_app_date] => 2023-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18125566 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/125566
Protection device Mar 22, 2023 Issued
Array ( [id] => 18515201 [patent_doc_number] => 20230231480 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-20 [patent_title] => SWITCHED-CAPACITOR DIRECT CURRENT/DIRECT CURRENT CONVERTER, SWITCHING-MODE POWER SUPPLY, AND CONTROL METHOD [patent_app_type] => utility [patent_app_number] => 18/186482 [patent_app_country] => US [patent_app_date] => 2023-03-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9934 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18186482 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/186482
SWITCHED-CAPACITOR DIRECT CURRENT/DIRECT CURRENT CONVERTER, SWITCHING-MODE POWER SUPPLY, AND CONTROL METHOD Mar 19, 2023 Pending
Array ( [id] => 18653835 [patent_doc_number] => 20230299677 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-21 [patent_title] => POWER CONVERSION CIRCUIT WITH CURRENT LIMITED CLAMP [patent_app_type] => utility [patent_app_number] => 18/184111 [patent_app_country] => US [patent_app_date] => 2023-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7076 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18184111 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/184111
POWER CONVERSION CIRCUIT WITH CURRENT LIMITED CLAMP Mar 14, 2023 Pending
Array ( [id] => 18501050 [patent_doc_number] => 20230223863 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-13 [patent_title] => POWER CONTROL APPARATUS [patent_app_type] => utility [patent_app_number] => 18/180349 [patent_app_country] => US [patent_app_date] => 2023-03-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5252 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [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] => 18180349 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/180349
Power control apparatus Mar 7, 2023 Issued
Array ( [id] => 20528760 [patent_doc_number] => 12547195 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-10 [patent_title] => Pole frequency tracking in load compensated amplifiers [patent_app_type] => utility [patent_app_number] => 18/177842 [patent_app_country] => US [patent_app_date] => 2023-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 0 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18177842 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/177842
Pole frequency tracking in load compensated amplifiers Mar 2, 2023 Issued
Array ( [id] => 18630060 [patent_doc_number] => 20230288950 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-14 [patent_title] => SWITCHABLE POWER SUPPLY [patent_app_type] => utility [patent_app_number] => 18/175266 [patent_app_country] => US [patent_app_date] => 2023-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6566 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18175266 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/175266
SWITCHABLE POWER SUPPLY Feb 26, 2023 Pending
Array ( [id] => 18632418 [patent_doc_number] => 20230291329 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-14 [patent_title] => POWER CONVERSION DEVICE [patent_app_type] => utility [patent_app_number] => 18/172304 [patent_app_country] => US [patent_app_date] => 2023-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3366 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18172304 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/172304
Power conversion device Feb 20, 2023 Issued
Array ( [id] => 19388789 [patent_doc_number] => 20240278659 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-22 [patent_title] => LLC RESONANT CONVERTER AND APPLICATIONS OF SAME [patent_app_type] => utility [patent_app_number] => 18/110972 [patent_app_country] => US [patent_app_date] => 2023-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13123 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18110972 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/110972
LLC RESONANT CONVERTER AND APPLICATIONS OF SAME Feb 16, 2023 Pending
Array ( [id] => 18632393 [patent_doc_number] => 20230291304 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-14 [patent_title] => CONTROL CIRCUIT AND CONTROL METHOD FOR THREE-LEVEL DC-DC CONVERTER [patent_app_type] => utility [patent_app_number] => 18/110631 [patent_app_country] => US [patent_app_date] => 2023-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7644 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18110631 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/110631
Control circuit and control method for three-level DC-DC converter Feb 15, 2023 Issued
Array ( [id] => 19349961 [patent_doc_number] => 20240258925 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-01 [patent_title] => BOOST CONVERTER HAVING PEAK CURRENT LIMIT CONTROL CIRCUITRY RESPONSIVE TO FLYING CAPACITOR VOLTAGE FEEDBACK [patent_app_type] => utility [patent_app_number] => 18/162017 [patent_app_country] => US [patent_app_date] => 2023-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12020 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18162017 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/162017
BOOST CONVERTER HAVING PEAK CURRENT LIMIT CONTROL CIRCUITRY RESPONSIVE TO FLYING CAPACITOR VOLTAGE FEEDBACK Jan 30, 2023 Pending
Array ( [id] => 19926851 [patent_doc_number] => 12301150 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-13 [patent_title] => Digital power converter arrangement of electric vehicle [patent_app_type] => utility [patent_app_number] => 18/103569 [patent_app_country] => US [patent_app_date] => 2023-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 24 [patent_no_of_words] => 3239 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 550 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18103569 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/103569
Digital power converter arrangement of electric vehicle Jan 30, 2023 Issued
Array ( [id] => 18775129 [patent_doc_number] => 20230369962 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-16 [patent_title] => Switch Control Module of Switch Mode Power Supply [patent_app_type] => utility [patent_app_number] => 18/100067 [patent_app_country] => US [patent_app_date] => 2023-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5494 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18100067 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/100067
Switch control module of switch mode power supply Jan 22, 2023 Issued
Array ( [id] => 18380393 [patent_doc_number] => 20230155483 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-18 [patent_title] => LOW GROUND CURRENT AC-DC POWER SUPPLY FOR NO-NEUTRAL ELECTRICAL DEVICES AND FAULT PROTECTION THEREFOR [patent_app_type] => utility [patent_app_number] => 18/155813 [patent_app_country] => US [patent_app_date] => 2023-01-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8816 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18155813 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/155813
Low ground current AC-DC power supply for no- neutral electrical devices and fault protection therefor Jan 17, 2023 Issued
Array ( [id] => 19779925 [patent_doc_number] => 12228957 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-18 [patent_title] => Output detection circuit [patent_app_type] => utility [patent_app_number] => 18/155490 [patent_app_country] => US [patent_app_date] => 2023-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 2879 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 265 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18155490 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/155490
Output detection circuit Jan 16, 2023 Issued
Array ( [id] => 18911702 [patent_doc_number] => 11874680 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-01-16 [patent_title] => Power supply with integrated voltage regulator and current limiter and method [patent_app_type] => utility [patent_app_number] => 18/154060 [patent_app_country] => US [patent_app_date] => 2023-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 8438 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 101 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18154060 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/154060
Power supply with integrated voltage regulator and current limiter and method Jan 12, 2023 Issued
Array ( [id] => 19286612 [patent_doc_number] => 20240223092 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => POWER CONVERSION PHASES AND COUPLING INDUCTANCE [patent_app_type] => utility [patent_app_number] => 18/093148 [patent_app_country] => US [patent_app_date] => 2023-01-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9529 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18093148 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/093148
POWER CONVERSION PHASES AND COUPLING INDUCTANCE Jan 3, 2023 Pending
Menu