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] => 18141602 [patent_doc_number] => 20230015445 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-19 [patent_title] => Synchronous Rectifiers and Charging Methods Used Therein [patent_app_type] => utility [patent_app_number] => 17/724104 [patent_app_country] => US [patent_app_date] => 2022-04-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3281 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17724104 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/724104
Synchronous rectifiers and charging methods used therein Apr 18, 2022 Issued
Array ( [id] => 18010039 [patent_doc_number] => 20220368806 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-17 [patent_title] => POWER SUPPLY DEVICE AND IMAGE FORMING APPARATUS [patent_app_type] => utility [patent_app_number] => 17/718562 [patent_app_country] => US [patent_app_date] => 2022-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3979 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 187 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17718562 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/718562
Power supply device and image forming apparatus Apr 11, 2022 Issued
Array ( [id] => 17934022 [patent_doc_number] => 20220329148 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-13 [patent_title] => CIRCUIT ARRANGEMENT [patent_app_type] => utility [patent_app_number] => 17/717205 [patent_app_country] => US [patent_app_date] => 2022-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2900 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 17717205 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/717205
Efficient DC link processing within a PFC circuit arrangement Apr 10, 2022 Issued
Array ( [id] => 18239101 [patent_doc_number] => 20230071412 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-09 [patent_title] => DC-DC CONVERTER FOR REDUCING VOLTAGE RIPPLE OF OUTPUT VOLTAGE AND METHOD OF CONTROLLING THE SAME [patent_app_type] => utility [patent_app_number] => 17/716024 [patent_app_country] => US [patent_app_date] => 2022-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5633 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17716024 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/716024
DC-DC converter for reducing voltage ripple of output voltage and method of controlling the same Apr 7, 2022 Issued
Array ( [id] => 19460504 [patent_doc_number] => 12101021 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-09-24 [patent_title] => Integrated circuit and power supply circuit [patent_app_type] => utility [patent_app_number] => 17/707317 [patent_app_country] => US [patent_app_date] => 2022-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 28 [patent_figures_cnt] => 28 [patent_no_of_words] => 19532 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17707317 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/707317
Integrated circuit and power supply circuit Mar 28, 2022 Issued
Array ( [id] => 19168892 [patent_doc_number] => 11984811 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-05-14 [patent_title] => Power supply control device and switching power supply apparatus [patent_app_type] => utility [patent_app_number] => 17/703202 [patent_app_country] => US [patent_app_date] => 2022-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 7313 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 193 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17703202 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/703202
Power supply control device and switching power supply apparatus Mar 23, 2022 Issued
Array ( [id] => 18098331 [patent_doc_number] => 20220416672 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-29 [patent_title] => ISOLATED BIDIRECTIONAL CONVERTER AND METHOD FOR CONTROLLING THE SAME [patent_app_type] => utility [patent_app_number] => 17/694767 [patent_app_country] => US [patent_app_date] => 2022-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5957 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17694767 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/694767
Isolated bidirectional converter and method for controlling the same Mar 14, 2022 Issued
Array ( [id] => 17918618 [patent_doc_number] => 20220321014 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-06 [patent_title] => CONTROL DEVICE FOR POWER CONVERSION SYSTEM AND ITS CONTROL METHOD [patent_app_type] => utility [patent_app_number] => 17/654068 [patent_app_country] => US [patent_app_date] => 2022-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4715 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 198 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17654068 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/654068
Control device for power conversion system and its control method Mar 8, 2022 Issued
Array ( [id] => 19436693 [patent_doc_number] => 20240305191 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-12 [patent_title] => NITRIDE-BASED POWER FACTOR CORRECTION CIRCUIT AND METHOD FOR IMPLEMENTING THE SAME [patent_app_type] => utility [patent_app_number] => 17/778022 [patent_app_country] => US [patent_app_date] => 2022-03-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5504 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17778022 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/778022
Nitride-based power factor correction circuit and method for implementing the same Mar 3, 2022 Issued
Array ( [id] => 18335263 [patent_doc_number] => 20230127211 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-27 [patent_title] => Buck Converter with Quick Response Mechanism and Method Thereof [patent_app_type] => utility [patent_app_number] => 17/684393 [patent_app_country] => US [patent_app_date] => 2022-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6262 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 17684393 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/684393
Buck converter with quick response mechanism and method thereof Feb 28, 2022 Issued
Array ( [id] => 18407348 [patent_doc_number] => 20230168700 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-01 [patent_title] => HARDWARE SCHEME FOR DYNAMIC ADJUSTMENT OF DCDC CONVERTER PEAK CURRENT AND SAFE LDO DISABLE [patent_app_type] => utility [patent_app_number] => 17/683217 [patent_app_country] => US [patent_app_date] => 2022-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7973 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 62 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17683217 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/683217
Hardware scheme for dynamic adjustment of DCDC converter peak current and safe LDO disable Feb 27, 2022 Issued
Array ( [id] => 17631197 [patent_doc_number] => 20220166212 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-26 [patent_title] => INPUT OVERVOLTAGE PROTECTION CIRCUITS FOR POWER SUPPLIES [patent_app_type] => utility [patent_app_number] => 17/650308 [patent_app_country] => US [patent_app_date] => 2022-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6858 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17650308 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/650308
Input overvoltage protection circuits for power supplies Feb 7, 2022 Issued
Array ( [id] => 19415292 [patent_doc_number] => 12081136 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-09-03 [patent_title] => Inverter module and inverter [patent_app_type] => utility [patent_app_number] => 17/584080 [patent_app_country] => US [patent_app_date] => 2022-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 23 [patent_no_of_words] => 7319 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17584080 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/584080
Inverter module and inverter Jan 24, 2022 Issued
Array ( [id] => 17738773 [patent_doc_number] => 20220224235 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-14 [patent_title] => CONTROL METHOD AND CONTROL DEVICE OF ISOLATED CONVERTER [patent_app_type] => utility [patent_app_number] => 17/574125 [patent_app_country] => US [patent_app_date] => 2022-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5344 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17574125 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/574125
Control method and control device of isolated converter Jan 11, 2022 Issued
Array ( [id] => 18883620 [patent_doc_number] => 20240006989 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-04 [patent_title] => RESONANCE POWER SUPPLY CIRCUIT [patent_app_type] => utility [patent_app_number] => 18/039398 [patent_app_country] => US [patent_app_date] => 2022-01-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5959 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 234 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18039398 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/039398
Resonance power supply circuit Jan 5, 2022 Issued
Array ( [id] => 19399609 [patent_doc_number] => 12073995 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-08-27 [patent_title] => Capacitor assembly, method for production thereof and converter assembly containing the capacitor assembly [patent_app_type] => utility [patent_app_number] => 17/540618 [patent_app_country] => US [patent_app_date] => 2021-12-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2062 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17540618 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/540618
Capacitor assembly, method for production thereof and converter assembly containing the capacitor assembly Dec 1, 2021 Issued
Array ( [id] => 19229602 [patent_doc_number] => 12009245 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-11 [patent_title] => Member for semiconductor manufacturing apparatus and method for manufacturing the same [patent_app_type] => utility [patent_app_number] => 17/457092 [patent_app_country] => US [patent_app_date] => 2021-12-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 4627 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17457092 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/457092
Member for semiconductor manufacturing apparatus and method for manufacturing the same Nov 30, 2021 Issued
Array ( [id] => 18395470 [patent_doc_number] => 20230163691 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-25 [patent_title] => Systems and Methods for Load Line Regulation of Sigma Converters [patent_app_type] => utility [patent_app_number] => 17/535341 [patent_app_country] => US [patent_app_date] => 2021-11-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5879 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17535341 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/535341
Systems and methods for load line regulation of sigma converters Nov 23, 2021 Issued
Array ( [id] => 18782659 [patent_doc_number] => 11824430 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-11-21 [patent_title] => Method and apparatus for sensing the input voltage of a power converter [patent_app_type] => utility [patent_app_number] => 17/524136 [patent_app_country] => US [patent_app_date] => 2021-11-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 32 [patent_figures_cnt] => 56 [patent_no_of_words] => 21696 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17524136 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/524136
Method and apparatus for sensing the input voltage of a power converter Nov 10, 2021 Issued
Array ( [id] => 18744044 [patent_doc_number] => 20230353032 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-02 [patent_title] => STARTUP METHOD OF SEMICONDUCTOR TRANSFORMER, AND CONVERTER USING SAME [patent_app_type] => utility [patent_app_number] => 18/002304 [patent_app_country] => US [patent_app_date] => 2021-11-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5257 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18002304 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/002304
Startup method of semiconductor transformer, and converter using same Nov 10, 2021 Issued
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