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] => 18294930 [patent_doc_number] => 20230104616 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-06 [patent_title] => INVERTER, INVERTER SYSTEM, AND METHOD [patent_app_type] => utility [patent_app_number] => 18/064440 [patent_app_country] => US [patent_app_date] => 2022-12-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10768 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 188 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18064440 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/064440
INVERTER, INVERTER SYSTEM, AND METHOD Dec 11, 2022 Pending
Array ( [id] => 20417218 [patent_doc_number] => 12500513 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-16 [patent_title] => Apparatus for enabling an inverter to switch between modes and a method of controlling same [patent_app_type] => utility [patent_app_number] => 18/075006 [patent_app_country] => US [patent_app_date] => 2022-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 1160 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18075006 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/075006
Apparatus for enabling an inverter to switch between modes and a method of controlling same Dec 4, 2022 Issued
Array ( [id] => 18424619 [patent_doc_number] => 20230179084 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-08 [patent_title] => CONTROLLERS CONFIGURED TO DETECT DEMAGNETIZATION WITH EXTERNAL BIPOLAR TRANSISTORS AND INTERNAL MOS TRANSISTORS AND METHODS THEREOF [patent_app_type] => utility [patent_app_number] => 18/074215 [patent_app_country] => US [patent_app_date] => 2022-12-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7173 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18074215 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/074215
Controllers configured to detect demagnetization with external bipolar transistors and internal MOS transistors and methods thereof Dec 1, 2022 Issued
Array ( [id] => 18866631 [patent_doc_number] => 20230421068 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-28 [patent_title] => POWER CONVERSION DEVICE [patent_app_type] => utility [patent_app_number] => 18/072233 [patent_app_country] => US [patent_app_date] => 2022-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6300 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18072233 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/072233
Power conversion device with semiconductor temperature protection Nov 29, 2022 Issued
Array ( [id] => 18697117 [patent_doc_number] => 20230327576 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => DC TO AC CONVERTER WITH MAGNITUDE BASED ON DUTY RATIO [patent_app_type] => utility [patent_app_number] => 17/989192 [patent_app_country] => US [patent_app_date] => 2022-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5910 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17989192 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/989192
DC to AC converter with magnitude based on duty ratio Nov 16, 2022 Issued
Array ( [id] => 18240751 [patent_doc_number] => 20230073062 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-09 [patent_title] => OPERATING METHOD FOR PREVENTING PHOTOMASK PARTICULATE CONTAMINATION [patent_app_type] => utility [patent_app_number] => 17/988432 [patent_app_country] => US [patent_app_date] => 2022-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6280 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17988432 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/988432
Operating method for preventing photomask particulate contamination Nov 15, 2022 Issued
Array ( [id] => 18393147 [patent_doc_number] => 20230161367 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-25 [patent_title] => POWER ON/OFF CIRCUIT AND ELECTRONIC VAPORIZATION DEVICE [patent_app_type] => utility [patent_app_number] => 17/987202 [patent_app_country] => US [patent_app_date] => 2022-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5000 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 17987202 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/987202
Power on/off circuit and electronic vaporization device Nov 14, 2022 Issued
Array ( [id] => 18334431 [patent_doc_number] => 20230126379 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-27 [patent_title] => SYSTEMS AND METHODS FOR DETECTING CURRENTS OF POWER MANAGEMENT SYSTEMS [patent_app_type] => utility [patent_app_number] => 17/975293 [patent_app_country] => US [patent_app_date] => 2022-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11237 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17975293 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/975293
SYSTEMS AND METHODS FOR DETECTING CURRENTS OF POWER MANAGEMENT SYSTEMS Oct 26, 2022 Abandoned
Array ( [id] => 18320218 [patent_doc_number] => 20230118346 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-20 [patent_title] => Method of Power Factor Correction Burst Mode Load Measurement and Control [patent_app_type] => utility [patent_app_number] => 18/049749 [patent_app_country] => US [patent_app_date] => 2022-10-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3285 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18049749 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/049749
Method of Power Factor Correction Burst Mode Load Measurement and Control Oct 25, 2022 Pending
Array ( [id] => 19812804 [patent_doc_number] => 12244219 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-04 [patent_title] => Cascade circuit, control method and integrated circuit thereof [patent_app_type] => utility [patent_app_number] => 17/968946 [patent_app_country] => US [patent_app_date] => 2022-10-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 7224 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17968946 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/968946
Cascade circuit, control method and integrated circuit thereof Oct 18, 2022 Issued
Array ( [id] => 19858672 [patent_doc_number] => 12261533 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-25 [patent_title] => Circuit for detecting power in a multi-stage power converter [patent_app_type] => utility [patent_app_number] => 18/046864 [patent_app_country] => US [patent_app_date] => 2022-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 6934 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18046864 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/046864
Circuit for detecting power in a multi-stage power converter Oct 13, 2022 Issued
Array ( [id] => 19553068 [patent_doc_number] => 12136784 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-05 [patent_title] => Connector [patent_app_type] => utility [patent_app_number] => 17/965769 [patent_app_country] => US [patent_app_date] => 2022-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3536 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17965769 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/965769
Connector Oct 13, 2022 Issued
Array ( [id] => 18387769 [patent_doc_number] => 11658566 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-05-23 [patent_title] => Power supply device, power supply system and method for controlling the same [patent_app_type] => utility [patent_app_number] => 17/961174 [patent_app_country] => US [patent_app_date] => 2022-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 4259 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17961174 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/961174
Power supply device, power supply system and method for controlling the same Oct 5, 2022 Issued
Array ( [id] => 19016832 [patent_doc_number] => 11923780 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-05 [patent_title] => Matrix converter control using predicted output current [patent_app_type] => utility [patent_app_number] => 17/960722 [patent_app_country] => US [patent_app_date] => 2022-10-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 18 [patent_no_of_words] => 10532 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17960722 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/960722
Matrix converter control using predicted output current Oct 4, 2022 Issued
Array ( [id] => 18284906 [patent_doc_number] => 20230100378 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-30 [patent_title] => SWITCHING CONTROL CIRCUITS AND METHOD OF ACTUATING A SWITCH HAVING REDUCED CONDUCTED EMI [patent_app_type] => utility [patent_app_number] => 17/956356 [patent_app_country] => US [patent_app_date] => 2022-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3812 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 17956356 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/956356
SWITCHING CONTROL CIRCUITS AND METHOD OF ACTUATING A SWITCH HAVING REDUCED CONDUCTED EMI Sep 28, 2022 Abandoned
Array ( [id] => 19905345 [patent_doc_number] => 12282350 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-22 [patent_title] => Bandgap circuit with noise reduction and temperature stability [patent_app_type] => utility [patent_app_number] => 17/935967 [patent_app_country] => US [patent_app_date] => 2022-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 799 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 207 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17935967 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/935967
Bandgap circuit with noise reduction and temperature stability Sep 27, 2022 Issued
Array ( [id] => 18278328 [patent_doc_number] => 20230093800 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-30 [patent_title] => CONTROL UNIT AND METHOD FOR A CONVERTER [patent_app_type] => utility [patent_app_number] => 17/953835 [patent_app_country] => US [patent_app_date] => 2022-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4782 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17953835 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/953835
CONTROL UNIT AND METHOD FOR A CONVERTER Sep 26, 2022 Abandoned
Array ( [id] => 18280911 [patent_doc_number] => 20230096383 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-30 [patent_title] => METHOD FOR OPERATING IN BURST MODE ACTIVE CLAMP FLYBACK CONVERTERS AND CORRESPONDING ACTIVE CLAMP FLYBACK CONVERTER APPARATUS [patent_app_type] => utility [patent_app_number] => 17/951703 [patent_app_country] => US [patent_app_date] => 2022-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16647 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 309 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17951703 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/951703
Method for operating in burst mode active clamp flyback converters and corresponding active clamp flyback converter apparatus Sep 22, 2022 Issued
Array ( [id] => 19812810 [patent_doc_number] => 12244225 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-04 [patent_title] => Systems and methods for reducing effects of leakage inductance in flyback DC-DC converters [patent_app_type] => utility [patent_app_number] => 17/933803 [patent_app_country] => US [patent_app_date] => 2022-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 4865 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 240 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17933803 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/933803
Systems and methods for reducing effects of leakage inductance in flyback DC-DC converters Sep 19, 2022 Issued
Array ( [id] => 20079167 [patent_doc_number] => 12353231 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-08 [patent_title] => Low-dropout regulator circuit with dynamic transition between operation modes [patent_app_type] => utility [patent_app_number] => 17/947472 [patent_app_country] => US [patent_app_date] => 2022-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 12 [patent_no_of_words] => 1090 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17947472 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/947472
Low-dropout regulator circuit with dynamic transition between operation modes Sep 18, 2022 Issued
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