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] => 19138437 [patent_doc_number] => 11973417 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-30 [patent_title] => System interconnection power conversion device [patent_app_type] => utility [patent_app_number] => 17/633794 [patent_app_country] => US [patent_app_date] => 2020-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 8114 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 351 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17633794 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/633794
System interconnection power conversion device Aug 5, 2020 Issued
Array ( [id] => 18402589 [patent_doc_number] => 11664742 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-05-30 [patent_title] => Power device health monitoring utilising a bridge arrangement [patent_app_type] => utility [patent_app_number] => 16/985570 [patent_app_country] => US [patent_app_date] => 2020-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2757 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16985570 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/985570
Power device health monitoring utilising a bridge arrangement Aug 4, 2020 Issued
Array ( [id] => 16456788 [patent_doc_number] => 20200366214 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-11-19 [patent_title] => ACTIVE CLAMP CONTROLLER CIRCUIT [patent_app_type] => utility [patent_app_number] => 16/944270 [patent_app_country] => US [patent_app_date] => 2020-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6192 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16944270 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/944270
Active clamp controller circuit Jul 30, 2020 Issued
Array ( [id] => 19627553 [patent_doc_number] => 12166410 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-10 [patent_title] => Power conversion device [patent_app_type] => utility [patent_app_number] => 17/928940 [patent_app_country] => US [patent_app_date] => 2020-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 21 [patent_no_of_words] => 12504 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 292 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17928940 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/928940
Power conversion device Jul 27, 2020 Issued
Array ( [id] => 16617967 [patent_doc_number] => 20210036620 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-02-04 [patent_title] => POWER CONVERTER [patent_app_type] => utility [patent_app_number] => 16/947266 [patent_app_country] => US [patent_app_date] => 2020-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7708 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 289 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16947266 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/947266
Phase-controlled power converter Jul 25, 2020 Issued
Array ( [id] => 17994146 [patent_doc_number] => 20220360183 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-10 [patent_title] => ENERGY CONVERSION DEVICE, POWER SYSTEM AND VEHICLE [patent_app_type] => utility [patent_app_number] => 17/622188 [patent_app_country] => US [patent_app_date] => 2020-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10905 [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] => 17622188 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/622188
Energy conversion device, power system and vehicle Jun 17, 2020 Issued
Array ( [id] => 17245318 [patent_doc_number] => 20210365061 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-25 [patent_title] => Low Dropout Regulator with Less Quiescent Current in Dropout Region [patent_app_type] => utility [patent_app_number] => 16/881240 [patent_app_country] => US [patent_app_date] => 2020-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2312 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16881240 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/881240
Low dropout regulator with less quiescent current in dropout region May 21, 2020 Issued
Array ( [id] => 16958959 [patent_doc_number] => 11062837 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-07-13 [patent_title] => Planar transformer, power conversion circuit, and adapter [patent_app_type] => utility [patent_app_number] => 16/871145 [patent_app_country] => US [patent_app_date] => 2020-05-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 16 [patent_no_of_words] => 12843 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 269 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16871145 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/871145
Planar transformer, power conversion circuit, and adapter May 10, 2020 Issued
Array ( [id] => 19016810 [patent_doc_number] => 11923757 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-05 [patent_title] => Electronic device for cutting off power [patent_app_type] => utility [patent_app_number] => 17/609881 [patent_app_country] => US [patent_app_date] => 2020-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 10697 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 326 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17609881 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/609881
Electronic device for cutting off power May 7, 2020 Issued
Array ( [id] => 16438801 [patent_doc_number] => 20200356127 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-11-12 [patent_title] => FREQUENCY COMPENSATION CIRCUIT AND CORRESPONDING DEVICE [patent_app_type] => utility [patent_app_number] => 16/869084 [patent_app_country] => US [patent_app_date] => 2020-05-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3941 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16869084 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/869084
Frequency compensation circuit and corresponding device May 6, 2020 Issued
Array ( [id] => 17353597 [patent_doc_number] => 11228250 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-01-18 [patent_title] => Flyback power switch structure for bridgeless rectifier [patent_app_type] => utility [patent_app_number] => 16/867641 [patent_app_country] => US [patent_app_date] => 2020-05-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 3088 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 453 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16867641 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/867641
Flyback power switch structure for bridgeless rectifier May 5, 2020 Issued
Array ( [id] => 16211178 [patent_doc_number] => 20200244168 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-07-30 [patent_title] => CURRENT SENSING SYSTEM COMPRISING A SCALED TRANSISTOR AND METHODS OF OPERATION THEREOF [patent_app_type] => utility [patent_app_number] => 16/849034 [patent_app_country] => US [patent_app_date] => 2020-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8785 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16849034 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/849034
Current sensing system comprising a scaled transistor and methods of operation thereof Apr 14, 2020 Issued
Array ( [id] => 19679776 [patent_doc_number] => 12191652 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-07 [patent_title] => Circuit breaker for breaking an electrical circuit [patent_app_type] => utility [patent_app_number] => 17/600771 [patent_app_country] => US [patent_app_date] => 2020-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 6076 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [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] => 17600771 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/600771
Circuit breaker for breaking an electrical circuit Apr 2, 2020 Issued
Array ( [id] => 16365135 [patent_doc_number] => 20200321886 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-08 [patent_title] => ALTERNATING CURRENT-DIRECT CURRENT CONVERSION CIRCUIT, ALTERNATING CURRENT-DIRECT CURRENT CONVERSION METHOD AND CHARGER [patent_app_type] => utility [patent_app_number] => 16/830630 [patent_app_country] => US [patent_app_date] => 2020-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4575 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 16830630 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/830630
Alternating current-direct current conversion circuit, alternating current-direct current conversion method and charger Mar 25, 2020 Issued
Array ( [id] => 16345831 [patent_doc_number] => 20200310482 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-01 [patent_title] => VOLTAGE REFERENCES AND DESIGN THEREOF [patent_app_type] => utility [patent_app_number] => 16/825071 [patent_app_country] => US [patent_app_date] => 2020-03-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4200 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 16825071 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/825071
VOLTAGE REFERENCES AND DESIGN THEREOF Mar 19, 2020 Abandoned
Array ( [id] => 16708232 [patent_doc_number] => 10958179 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-03-23 [patent_title] => Reduced voltage switching of a main switch in flyback power converters [patent_app_type] => utility [patent_app_number] => 16/823505 [patent_app_country] => US [patent_app_date] => 2020-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 12 [patent_no_of_words] => 9873 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16823505 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/823505
Reduced voltage switching of a main switch in flyback power converters Mar 18, 2020 Issued
Array ( [id] => 17597021 [patent_doc_number] => 20220146595 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-12 [patent_title] => DETECTION OF A GROUND FAULT IN A DIRECT-CURRENT NETWORK [patent_app_type] => utility [patent_app_number] => 17/601809 [patent_app_country] => US [patent_app_date] => 2020-03-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4381 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 215 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17601809 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/601809
Detection of a ground fault in a direct-current network Mar 17, 2020 Issued
Array ( [id] => 17631219 [patent_doc_number] => 20220166234 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-26 [patent_title] => PROTECTIVE CIRCUIT, ENERGY STORAGE APPARATUS, AND CONTROL METHOD FOR PROTECTIVE CIRCUIT [patent_app_type] => utility [patent_app_number] => 17/441164 [patent_app_country] => US [patent_app_date] => 2020-03-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7806 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [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] => 17441164 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/441164
PROTECTIVE CIRCUIT, ENERGY STORAGE APPARATUS, AND CONTROL METHOD FOR PROTECTIVE CIRCUIT Mar 17, 2020 Abandoned
Array ( [id] => 17915316 [patent_doc_number] => 20220317712 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-06 [patent_title] => DIGITALLY CONTROLLED LOW DROPOUT REGULATOR [patent_app_type] => utility [patent_app_number] => 17/616228 [patent_app_country] => US [patent_app_date] => 2020-03-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7288 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17616228 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/616228
Digitally controlled low dropout regulator Mar 15, 2020 Issued
Array ( [id] => 18291087 [patent_doc_number] => 11619956 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-04-04 [patent_title] => Nonlinear trim head power supply with a wide input range and a high efficiency [patent_app_type] => utility [patent_app_number] => 16/818347 [patent_app_country] => US [patent_app_date] => 2020-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2028 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16818347 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/818347
Nonlinear trim head power supply with a wide input range and a high efficiency Mar 12, 2020 Issued
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