Search

Shahzeb K. Ahmad

Examiner (ID: 15391, Phone: (571)272-0978 , Office: P/2838 )

Most Active Art Unit
2838
Art Unit(s)
2838, 2839
Total Applications
555
Issued Applications
437
Pending Applications
53
Abandoned Applications
81

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18571239 [patent_doc_number] => 20230261576 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-17 [patent_title] => CONVERTER OUTPUT STAGE WITH BIAS VOLTAGE GENERATOR [patent_app_type] => utility [patent_app_number] => 18/305222 [patent_app_country] => US [patent_app_date] => 2023-04-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4536 [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] => 18305222 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/305222
Converter output stage with bias voltage generator Apr 20, 2023 Issued
Array ( [id] => 19935545 [patent_doc_number] => 12308755 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-20 [patent_title] => Frequency converter [patent_app_type] => utility [patent_app_number] => 18/129147 [patent_app_country] => US [patent_app_date] => 2023-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 0 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 245 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18129147 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/129147
Frequency converter Mar 30, 2023 Issued
Array ( [id] => 18951468 [patent_doc_number] => 11894777 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-02-06 [patent_title] => Power conversion circuit and power conversion apparatus with same [patent_app_type] => utility [patent_app_number] => 18/122963 [patent_app_country] => US [patent_app_date] => 2023-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 11329 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 366 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18122963 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/122963
Power conversion circuit and power conversion apparatus with same Mar 16, 2023 Issued
Array ( [id] => 19214093 [patent_doc_number] => 12003172 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-04 [patent_title] => Power supply device, power supply system and method for controlling the same [patent_app_type] => utility [patent_app_number] => 18/181977 [patent_app_country] => US [patent_app_date] => 2023-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 4280 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [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] => 18181977 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/181977
Power supply device, power supply system and method for controlling the same Mar 9, 2023 Issued
Array ( [id] => 18472535 [patent_doc_number] => 20230206822 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-29 [patent_title] => SWITCH DEVICES AND DISPLAY APPARATUSES [patent_app_type] => utility [patent_app_number] => 18/176199 [patent_app_country] => US [patent_app_date] => 2023-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3912 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 169 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18176199 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/176199
Switch devices and display apparatuses Feb 27, 2023 Issued
Array ( [id] => 18632413 [patent_doc_number] => 20230291324 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-14 [patent_title] => SWITCHING DEVICE, SWITCHING POWER SUPPLY APPARATUS, AND VEHICLE [patent_app_type] => utility [patent_app_number] => 18/174447 [patent_app_country] => US [patent_app_date] => 2023-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3401 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 212 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18174447 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/174447
Switching device, switching power supply apparatus, and vehicle Feb 23, 2023 Issued
Array ( [id] => 19971083 [patent_doc_number] => 12339693 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-24 [patent_title] => Circuit and system for actively discharging a power stage input node during power supply turn-on [patent_app_type] => utility [patent_app_number] => 18/171006 [patent_app_country] => US [patent_app_date] => 2023-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18171006 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/171006
Circuit and system for actively discharging a power stage input node during power supply turn-on Feb 16, 2023 Issued
Array ( [id] => 19362585 [patent_doc_number] => 20240264619 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-08 [patent_title] => POWER SUPPLY REJECTION RATIO ENHANCMENT TECHNIQUES FOR LOW DROPOUT REGULATORS [patent_app_type] => utility [patent_app_number] => 18/165209 [patent_app_country] => US [patent_app_date] => 2023-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7050 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 101 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18165209 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/165209
POWER SUPPLY REJECTION RATIO ENHANCMENT TECHNIQUES FOR LOW DROPOUT REGULATORS Feb 5, 2023 Pending
Array ( [id] => 19063610 [patent_doc_number] => 11942872 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-26 [patent_title] => Multi-PATH resonant circuit and resonant converter [patent_app_type] => utility [patent_app_number] => 18/164666 [patent_app_country] => US [patent_app_date] => 2023-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 8429 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18164666 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/164666
Multi-PATH resonant circuit and resonant converter Feb 5, 2023 Issued
Array ( [id] => 19364934 [patent_doc_number] => 20240266968 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-08 [patent_title] => MULTI-PHASE AC-DC CONVERTER [patent_app_type] => utility [patent_app_number] => 18/163393 [patent_app_country] => US [patent_app_date] => 2023-02-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8741 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -27 [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] => 18163393 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/163393
MULTI-PHASE AC-DC CONVERTER Feb 1, 2023 Pending
Array ( [id] => 19926835 [patent_doc_number] => 12301134 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-13 [patent_title] => Inverter-based comparator [patent_app_type] => utility [patent_app_number] => 18/095399 [patent_app_country] => US [patent_app_date] => 2023-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 0 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [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] => 18095399 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/095399
Inverter-based comparator Jan 9, 2023 Issued
Array ( [id] => 19286611 [patent_doc_number] => 20240223091 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => INDUCTIVE COUPLED MUTI-STAGE POWER CONVERTER [patent_app_type] => utility [patent_app_number] => 18/092599 [patent_app_country] => US [patent_app_date] => 2023-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11498 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 21 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18092599 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/092599
INDUCTIVE COUPLED MUTI-STAGE POWER CONVERTER Jan 2, 2023 Pending
Array ( [id] => 18489054 [patent_doc_number] => 20230216404 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-06 [patent_title] => VOLTAGE REGULATOR DEVICE [patent_app_type] => utility [patent_app_number] => 18/089736 [patent_app_country] => US [patent_app_date] => 2022-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6841 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18089736 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/089736
Voltage regulator device Dec 27, 2022 Issued
Array ( [id] => 18515199 [patent_doc_number] => 20230231478 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-20 [patent_title] => SWITCHING POWER CONVERTER AND CONVERSION CONTROL CIRCUIT THEREOF [patent_app_type] => utility [patent_app_number] => 18/145863 [patent_app_country] => US [patent_app_date] => 2022-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10072 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 320 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18145863 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/145863
Switching power converter and conversion control circuit thereof Dec 22, 2022 Issued
Array ( [id] => 19741727 [patent_doc_number] => 12218579 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-04 [patent_title] => Semiconductor device [patent_app_type] => utility [patent_app_number] => 18/145328 [patent_app_country] => US [patent_app_date] => 2022-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 5880 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18145328 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/145328
Semiconductor device Dec 21, 2022 Issued
Array ( [id] => 19782005 [patent_doc_number] => 12231052 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-18 [patent_title] => Enable circuit with winding signal detection [patent_app_type] => utility [patent_app_number] => 18/084970 [patent_app_country] => US [patent_app_date] => 2022-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 18216 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 205 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18084970 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/084970
Enable circuit with winding signal detection Dec 19, 2022 Issued
Array ( [id] => 19253669 [patent_doc_number] => 20240204666 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-20 [patent_title] => AUTO MODE CHANGE IN BUCK-BOOST CONVERTER [patent_app_type] => utility [patent_app_number] => 18/068095 [patent_app_country] => US [patent_app_date] => 2022-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5289 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18068095 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/068095
Auto mode change in buck-boost converter Dec 18, 2022 Issued
Array ( [id] => 18457125 [patent_doc_number] => 20230198407 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-22 [patent_title] => BUCK-BOOST DC/DC CONVERTER [patent_app_type] => utility [patent_app_number] => 18/084413 [patent_app_country] => US [patent_app_date] => 2022-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9047 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 100 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18084413 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/084413
BUCK-BOOST DC/DC CONVERTER Dec 18, 2022 Issued
Array ( [id] => 18326821 [patent_doc_number] => 20230124949 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-20 [patent_title] => TRUE POWER SHEDDING APPARATUS AND METHOD TO REDUCE POWER CONSUMPTION [patent_app_type] => utility [patent_app_number] => 18/066908 [patent_app_country] => US [patent_app_date] => 2022-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5992 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18066908 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/066908
TRUE POWER SHEDDING APPARATUS AND METHOD TO REDUCE POWER CONSUMPTION Dec 14, 2022 Abandoned
Array ( [id] => 18440741 [patent_doc_number] => 20230188037 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-15 [patent_title] => FIXED-FREQUENCY HYSTERETIC DC-DC CONVERTER [patent_app_type] => utility [patent_app_number] => 18/065972 [patent_app_country] => US [patent_app_date] => 2022-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10638 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18065972 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/065972
FIXED-FREQUENCY HYSTERETIC DC-DC CONVERTER Dec 13, 2022 Pending
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