Search

Afework S. Demisse

Examiner (ID: 17359)

Most Active Art Unit
2838
Art Unit(s)
2838
Total Applications
841
Issued Applications
786
Pending Applications
30
Abandoned Applications
43

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19887291 [patent_doc_number] => 12273027 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-04-08 [patent_title] => Compact high-power DC-to-DC converters with out-of-phase converter units and multiple cooling types [patent_app_type] => utility [patent_app_number] => 18/678327 [patent_app_country] => US [patent_app_date] => 2024-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 31 [patent_no_of_words] => 15824 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 187 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18678327 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/678327
Compact high-power DC-to-DC converters with out-of-phase converter units and multiple cooling types May 29, 2024 Issued
Array ( [id] => 19421440 [patent_doc_number] => 20240297564 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-05 [patent_title] => VOLTAGE CONVERTER WITH REGULATED SWITCHING FREQUENCY AND MINIMUM ON TIME OVERRIDE [patent_app_type] => utility [patent_app_number] => 18/591723 [patent_app_country] => US [patent_app_date] => 2024-02-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7716 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18591723 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/591723
Voltage converter with regulated switching frequency and minimum on time override Feb 28, 2024 Issued
Array ( [id] => 20539012 [patent_doc_number] => 12556092 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-17 [patent_title] => Buck converter continuous conduction operation [patent_app_type] => utility [patent_app_number] => 18/582018 [patent_app_country] => US [patent_app_date] => 2024-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 15 [patent_no_of_words] => 5845 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18582018 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/582018
Buck converter continuous conduction operation Feb 19, 2024 Issued
Array ( [id] => 19385430 [patent_doc_number] => 20240275300 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => MODULE FOR SUPPLYING ELECTRICAL ENERGY [patent_app_type] => utility [patent_app_number] => 18/430710 [patent_app_country] => US [patent_app_date] => 2024-02-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2422 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18430710 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/430710
MODULE FOR SUPPLYING ELECTRICAL ENERGY Feb 1, 2024 Pending
Array ( [id] => 19971082 [patent_doc_number] => 12339692 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-24 [patent_title] => Systems and methods for photovoltaic direct current (DC) bus control [patent_app_type] => utility [patent_app_number] => 18/409086 [patent_app_country] => US [patent_app_date] => 2024-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 13 [patent_no_of_words] => 1733 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18409086 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/409086
Systems and methods for photovoltaic direct current (DC) bus control Jan 9, 2024 Issued
Array ( [id] => 20096725 [patent_doc_number] => 20250226661 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-10 [patent_title] => ENERGY STORAGE CIRCUIT AND CONTROL METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/405753 [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] => 3519 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18405753 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/405753
Energy storage circuit and control method thereof Jan 4, 2024 Issued
Array ( [id] => 20551839 [patent_doc_number] => 12562642 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-24 [patent_title] => Charge pump circuits and methods for operating the same [patent_app_type] => utility [patent_app_number] => 18/405904 [patent_app_country] => US [patent_app_date] => 2024-01-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 2381 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18405904 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/405904
Charge pump circuits and methods for operating the same Jan 4, 2024 Issued
Array ( [id] => 19610862 [patent_doc_number] => 12159742 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-03 [patent_title] => Active current compensation device capable of detecting malfunction [patent_app_type] => utility [patent_app_number] => 18/402760 [patent_app_country] => US [patent_app_date] => 2024-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 52 [patent_figures_cnt] => 55 [patent_no_of_words] => 62128 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 163 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18402760 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/402760
Active current compensation device capable of detecting malfunction Jan 2, 2024 Issued
Array ( [id] => 18991077 [patent_doc_number] => 20240063046 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-22 [patent_title] => ELECTROSTATIC CHUCK [patent_app_type] => utility [patent_app_number] => 18/500308 [patent_app_country] => US [patent_app_date] => 2023-11-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3250 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [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] => 18500308 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/500308
Electrostatic chuck Nov 1, 2023 Issued
Array ( [id] => 18991758 [patent_doc_number] => 20240063727 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-22 [patent_title] => RECTIFIER ASSEMBLY [patent_app_type] => utility [patent_app_number] => 18/499700 [patent_app_country] => US [patent_app_date] => 2023-11-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7810 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18499700 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/499700
RECTIFIER ASSEMBLY Oct 31, 2023 Pending
Array ( [id] => 19647197 [patent_doc_number] => 20240421717 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-19 [patent_title] => SECONDARY SIDE CONTROLLED FLYBACK CONVERTER WITH ACCURATE FEED-FORWARD SENSING [patent_app_type] => utility [patent_app_number] => 18/499039 [patent_app_country] => US [patent_app_date] => 2023-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6916 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18499039 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/499039
Secondary side controlled flyback converter with accurate feed-forward sensing Oct 30, 2023 Issued
Array ( [id] => 20003110 [patent_doc_number] => 20250141332 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-01 [patent_title] => Signal Conversion Apparatus and Control Method [patent_app_type] => utility [patent_app_number] => 18/383706 [patent_app_country] => US [patent_app_date] => 2023-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2304 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18383706 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/383706
Signal Conversion Apparatus and Control Method Oct 24, 2023 Pending
Array ( [id] => 18975900 [patent_doc_number] => 20240055992 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-15 [patent_title] => THREE-LEVEL BUCK CONVERTER CONFIGURABLE FOR TWO-LEVEL BUCK CONVERTER MODE OPERATION [patent_app_type] => utility [patent_app_number] => 18/489639 [patent_app_country] => US [patent_app_date] => 2023-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9980 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18489639 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/489639
Three-level buck converter configurable for two-level buck converter mode operation Oct 17, 2023 Issued
Array ( [id] => 19671472 [patent_doc_number] => 12184250 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-31 [patent_title] => Instrumentation amplifier and related apparatus [patent_app_type] => utility [patent_app_number] => 18/374075 [patent_app_country] => US [patent_app_date] => 2023-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 10394 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18374075 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/374075
Instrumentation amplifier and related apparatus Sep 27, 2023 Issued
Array ( [id] => 20260520 [patent_doc_number] => 12432891 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-30 [patent_title] => Reversible cooling apparatus for systems with variable heat distribution [patent_app_type] => utility [patent_app_number] => 18/475642 [patent_app_country] => US [patent_app_date] => 2023-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 0 [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] => 18475642 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/475642
Reversible cooling apparatus for systems with variable heat distribution Sep 26, 2023 Issued
Array ( [id] => 20259428 [patent_doc_number] => 12431794 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-30 [patent_title] => LLC converter with protection circuit [patent_app_type] => utility [patent_app_number] => 18/472852 [patent_app_country] => US [patent_app_date] => 2023-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18472852 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/472852
LLC converter with protection circuit Sep 21, 2023 Issued
Array ( [id] => 20456240 [patent_doc_number] => 12519303 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-06 [patent_title] => Hybrid circuit breaker and pre-charge control method [patent_app_type] => utility [patent_app_number] => 18/371971 [patent_app_country] => US [patent_app_date] => 2023-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 23 [patent_no_of_words] => 2211 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18371971 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/371971
Hybrid circuit breaker and pre-charge control method Sep 21, 2023 Issued
Array ( [id] => 20204463 [patent_doc_number] => 12407252 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-02 [patent_title] => Switching regulator and operation clock signal generator circuit and control method thereof [patent_app_type] => utility [patent_app_number] => 18/471331 [patent_app_country] => US [patent_app_date] => 2023-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 22 [patent_no_of_words] => 0 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18471331 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/471331
Switching regulator and operation clock signal generator circuit and control method thereof Sep 20, 2023 Issued
Array ( [id] => 19038964 [patent_doc_number] => 20240088779 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-14 [patent_title] => Decoupling Device Using Stored Charge Reverse Recovery [patent_app_type] => utility [patent_app_number] => 18/471868 [patent_app_country] => US [patent_app_date] => 2023-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14935 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18471868 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/471868
Decoupling device using stored charge reverse recovery Sep 20, 2023 Issued
Array ( [id] => 19851336 [patent_doc_number] => 20250096687 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-20 [patent_title] => BUCK-BOOST BASED HIGH LINEARITY DRIVER WITH SEPARATELY CONTROLLABLE DUTY CYCLE FOR ENERGIZING AND DE-ENERGIZING PHASES [patent_app_type] => utility [patent_app_number] => 18/469750 [patent_app_country] => US [patent_app_date] => 2023-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4931 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -25 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18469750 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/469750
Buck-boost based high linearity driver with separately controllable duty cycle for energizing and de-energizing phases Sep 18, 2023 Issued
Menu