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Ephrem Zeru Mebrahtu

Examiner (ID: 10920, Phone: (571)272-8386 , Office: P/2872 )

Most Active Art Unit
2872
Art Unit(s)
2872
Total Applications
575
Issued Applications
397
Pending Applications
66
Abandoned Applications
126

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20791586 [patent_doc_number] => 12665507 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-06-23 [patent_title] => Trimming circuit for bandgap references [patent_app_type] => utility [patent_app_number] => 18/619969 [patent_app_country] => US [patent_app_date] => 2024-03-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 2712 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18619969 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/619969
TRIMMING CIRCUIT FOR BANDGAP REFERENCES Mar 27, 2024 Issued
Array ( [id] => 19796781 [patent_doc_number] => 12237760 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-25 [patent_title] => Decoupled PCB structure to parallel power transistors [patent_app_type] => utility [patent_app_number] => 18/613197 [patent_app_country] => US [patent_app_date] => 2024-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 8575 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [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] => 18613197 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/613197
Decoupled PCB structure to parallel power transistors Mar 21, 2024 Issued
Array ( [id] => 19286621 [patent_doc_number] => 20240223101 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => SEMICONDUCTOR DEVICE [patent_app_type] => utility [patent_app_number] => 18/606242 [patent_app_country] => US [patent_app_date] => 2024-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 28183 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [patent_words_short_claim] => 220 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18606242 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/606242
Semiconductor device Mar 14, 2024 Issued
Array ( [id] => 19469003 [patent_doc_number] => 20240322673 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-26 [patent_title] => BASE PLATE AND SINGLE-PHASE MODULE OF AN INVERTER, INVERTER AND POWER ELECTRONICS [patent_app_type] => utility [patent_app_number] => 18/606937 [patent_app_country] => US [patent_app_date] => 2024-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4429 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18606937 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/606937
BASE PLATE AND SINGLE-PHASE MODULE OF AN INVERTER, INVERTER AND POWER ELECTRONICS Mar 14, 2024 Pending
Array ( [id] => 19253507 [patent_doc_number] => 20240204504 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-20 [patent_title] => High-Reliability Low-Loss Power Switch and Driver IC with Overcurrent Protection [patent_app_type] => utility [patent_app_number] => 18/443336 [patent_app_country] => US [patent_app_date] => 2024-02-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12312 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 18443336 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/443336
High-Reliability Low-Loss Power Switch and Driver IC with Overcurrent Protection Feb 15, 2024 Pending
Array ( [id] => 19727586 [patent_doc_number] => 20250030337 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-23 [patent_title] => ADAPTIVE SLEW RATE RESONANT POWER CONVERTER AND CONVERSION CONTROL CIRCUIT AND CONTROL METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/433417 [patent_app_country] => US [patent_app_date] => 2024-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2919 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18433417 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/433417
Adaptive slew rate resonant power converter and conversion control circuit and control method thereof Feb 5, 2024 Issued
Array ( [id] => 19347013 [patent_doc_number] => 20240255976 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-01 [patent_title] => LOW-DROPOUT REGULATOR CIRCUIT AND ELECTRONIC DEVICE [patent_app_type] => utility [patent_app_number] => 18/417643 [patent_app_country] => US [patent_app_date] => 2024-01-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6019 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18417643 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/417643
LOW-DROPOUT REGULATOR CIRCUIT AND ELECTRONIC DEVICE Jan 18, 2024 Pending
Array ( [id] => 19384128 [patent_doc_number] => 20240273998 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => POWER SOURCE ARRANGEMENTS FOR SELF-TESTING ALARM SYSTEMS [patent_app_type] => utility [patent_app_number] => 18/413800 [patent_app_country] => US [patent_app_date] => 2024-01-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4683 [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] => 18413800 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/413800
POWER SOURCE ARRANGEMENTS FOR SELF-TESTING ALARM SYSTEMS Jan 15, 2024 Pending
Array ( [id] => 20375675 [patent_doc_number] => 12483120 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-25 [patent_title] => Power supply system with power factor correction(PFC) and control method thereof [patent_app_type] => utility [patent_app_number] => 18/409078 [patent_app_country] => US [patent_app_date] => 2024-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 12 [patent_no_of_words] => 3646 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18409078 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/409078
Power supply system with power factor correction(PFC) and control method thereof Jan 9, 2024 Issued
Array ( [id] => 19321364 [patent_doc_number] => 20240242911 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-18 [patent_title] => RESETTING RCD MECHANISM BY THE HANDLE [patent_app_type] => utility [patent_app_number] => 18/405304 [patent_app_country] => US [patent_app_date] => 2024-01-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8152 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 534 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18405304 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/405304
Resetting RCD mechanism by the handle Jan 4, 2024 Issued
Array ( [id] => 19393503 [patent_doc_number] => 20240283373 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-22 [patent_title] => CONSTANT-POWER PURE SINE WAVE OUTPUT CIRCUIT, DEVICE AND POWER SUPPLY SYSTEM [patent_app_type] => utility [patent_app_number] => 18/399762 [patent_app_country] => US [patent_app_date] => 2023-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3490 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 44 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18399762 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/399762
CONSTANT-POWER PURE SINE WAVE OUTPUT CIRCUIT, DEVICE AND POWER SUPPLY SYSTEM Dec 28, 2023 Pending
Array ( [id] => 20072898 [patent_doc_number] => 20250211120 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-26 [patent_title] => OUTPUT CONDUCTION DETECTION IN A BUCK CONVERTER [patent_app_type] => utility [patent_app_number] => 18/393347 [patent_app_country] => US [patent_app_date] => 2023-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [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] => 18393347 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/393347
OUTPUT CONDUCTION DETECTION IN A BUCK CONVERTER Dec 20, 2023 Pending
Array ( [id] => 20333259 [patent_doc_number] => 12463545 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-04 [patent_title] => Isolated bi-directional DC conversion circuit and method for controlling the same [patent_app_type] => utility [patent_app_number] => 18/391940 [patent_app_country] => US [patent_app_date] => 2023-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 13 [patent_no_of_words] => 2243 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18391940 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/391940
Isolated bi-directional DC conversion circuit and method for controlling the same Dec 20, 2023 Issued
Array ( [id] => 20469833 [patent_doc_number] => 12525876 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-13 [patent_title] => EMI suppression method [patent_app_type] => utility [patent_app_number] => 18/523802 [patent_app_country] => US [patent_app_date] => 2023-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 0 [patent_no_of_claims] => 19 [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] => 18523802 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/523802
EMI suppression method Nov 28, 2023 Issued
Array ( [id] => 19038982 [patent_doc_number] => 20240088797 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-14 [patent_title] => ELECTRIC POWER CONVERTER [patent_app_type] => utility [patent_app_number] => 18/517795 [patent_app_country] => US [patent_app_date] => 2023-11-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 24546 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18517795 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/517795
Electric power converter Nov 21, 2023 Issued
Array ( [id] => 19222185 [patent_doc_number] => 20240186889 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-06 [patent_title] => POWER ELECTRONICS CONVERTER THERMAL MANAGEMENT [patent_app_type] => utility [patent_app_number] => 18/512170 [patent_app_country] => US [patent_app_date] => 2023-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6762 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18512170 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/512170
Power electronics converter thermal management Nov 16, 2023 Issued
Array ( [id] => 20021778 [patent_doc_number] => 20250160000 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-15 [patent_title] => ESD PROTECTION CIRCUIT [patent_app_type] => utility [patent_app_number] => 18/508776 [patent_app_country] => US [patent_app_date] => 2023-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18508776 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/508776
ESD PROTECTION CIRCUIT Nov 13, 2023 Pending
Array ( [id] => 19620002 [patent_doc_number] => 20240405682 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-05 [patent_title] => BIDIRECTIONAL HYBRID POWER CONVERSION SYSTEM [patent_app_type] => utility [patent_app_number] => 18/508458 [patent_app_country] => US [patent_app_date] => 2023-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10442 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18508458 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/508458
BIDIRECTIONAL HYBRID POWER CONVERSION SYSTEM Nov 13, 2023 Abandoned
Array ( [id] => 19213568 [patent_doc_number] => 12002640 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-06-04 [patent_title] => Control system of an electromagnetic relay and electromagnetic relay [patent_app_type] => utility [patent_app_number] => 18/498471 [patent_app_country] => US [patent_app_date] => 2023-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 3929 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18498471 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/498471
Control system of an electromagnetic relay and electromagnetic relay Oct 30, 2023 Issued
Array ( [id] => 19143626 [patent_doc_number] => 20240142501 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-02 [patent_title] => Fault Detection for a Flying Capacitor Converter [patent_app_type] => utility [patent_app_number] => 18/495262 [patent_app_country] => US [patent_app_date] => 2023-10-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5392 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 38 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18495262 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/495262
Fault Detection for a Flying Capacitor Converter Oct 25, 2023 Pending
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