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] => 17861325 [patent_doc_number] => 11442481 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-09-13 [patent_title] => Digital regulator system and control method thereof [patent_app_type] => utility [patent_app_number] => 16/818362 [patent_app_country] => US [patent_app_date] => 2020-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3686 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16818362 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/818362
Digital regulator system and control method thereof Mar 12, 2020 Issued
Array ( [id] => 17631191 [patent_doc_number] => 20220166206 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-26 [patent_title] => CIRCUIT BREAKER DEVICE FOR DC VOLTAGE [patent_app_type] => utility [patent_app_number] => 17/440937 [patent_app_country] => US [patent_app_date] => 2020-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3485 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [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] => 17440937 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/440937
Circuit breaker device for DC voltage Mar 12, 2020 Issued
Array ( [id] => 17437450 [patent_doc_number] => 11262781 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-03-01 [patent_title] => Voltage reference circuit for countering a temperature dependent voltage bias [patent_app_type] => utility [patent_app_number] => 16/813838 [patent_app_country] => US [patent_app_date] => 2020-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 18 [patent_no_of_words] => 11021 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 190 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16813838 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/813838
Voltage reference circuit for countering a temperature dependent voltage bias Mar 9, 2020 Issued
Array ( [id] => 16299538 [patent_doc_number] => 20200285261 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-09-10 [patent_title] => LOW DROPOUT REGULATOR (LDO) CIRCUIT WITH SMOOTH PASS TRANSISTOR PARTITIONING [patent_app_type] => utility [patent_app_number] => 16/810108 [patent_app_country] => US [patent_app_date] => 2020-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6397 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16810108 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/810108
Low dropout regulator (LDO) circuit with smooth pass transistor partitioning Mar 4, 2020 Issued
Array ( [id] => 17308742 [patent_doc_number] => 11209850 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-12-28 [patent_title] => Termination voltage regulation apparatus with transient response enhancement [patent_app_type] => utility [patent_app_number] => 16/790920 [patent_app_country] => US [patent_app_date] => 2020-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3921 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [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] => 16790920 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/790920
Termination voltage regulation apparatus with transient response enhancement Feb 13, 2020 Issued
Array ( [id] => 18052810 [patent_doc_number] => 11526191 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-12-13 [patent_title] => Precision reference circuit [patent_app_type] => utility [patent_app_number] => 16/781549 [patent_app_country] => US [patent_app_date] => 2020-02-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 14 [patent_no_of_words] => 7017 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16781549 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/781549
Precision reference circuit Feb 3, 2020 Issued
Array ( [id] => 16379747 [patent_doc_number] => 20200328590 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-15 [patent_title] => CONTROL CIRCUIT FOR AN INPUT FILTER CAPACITOR IN A SWITCH-MODE POWER SUPPLY [patent_app_type] => utility [patent_app_number] => 16/742703 [patent_app_country] => US [patent_app_date] => 2020-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8348 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 236 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16742703 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/742703
Control circuit for an input filter capacitor in a switch-mode power supply Jan 13, 2020 Issued
Array ( [id] => 16952257 [patent_doc_number] => 20210210949 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-07-08 [patent_title] => INPUT OVERVOLTAGE PROTECTION CIRCUITS FOR POWER SUPPLIES [patent_app_type] => utility [patent_app_number] => 16/737403 [patent_app_country] => US [patent_app_date] => 2020-01-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6816 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16737403 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/737403
Input overvoltage protection circuits for power supplies Jan 7, 2020 Issued
Array ( [id] => 18144232 [patent_doc_number] => 20230018083 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-19 [patent_title] => POWER CONVERSION DEVICE [patent_app_type] => utility [patent_app_number] => 17/785596 [patent_app_country] => US [patent_app_date] => 2019-12-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12246 [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] => 17785596 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/785596
Power conversion device Dec 24, 2019 Issued
Array ( [id] => 16921290 [patent_doc_number] => 20210194382 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-06-24 [patent_title] => HYBRID MULTILEVEL INVERTER TOPOLOGY WITH REDUCED SWITCH COUNT AND DC VOLTAGE SOURCES [patent_app_type] => utility [patent_app_number] => 16/725312 [patent_app_country] => US [patent_app_date] => 2019-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11379 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 16725312 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/725312
Hybrid multilevel inverter topology with reduced switch count and dc voltage sources Dec 22, 2019 Issued
Array ( [id] => 17600039 [patent_doc_number] => 20220149613 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-12 [patent_title] => SWITCHING DEVICE FOR OPENING A CURRENT PATH [patent_app_type] => utility [patent_app_number] => 17/426999 [patent_app_country] => US [patent_app_date] => 2019-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5882 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17426999 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/426999
Switching device for opening a current path Dec 18, 2019 Issued
Array ( [id] => 17209189 [patent_doc_number] => 11169558 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-11-09 [patent_title] => Logarithmic current-to-voltage conversion circuit having temperature compensation function [patent_app_type] => utility [patent_app_number] => 16/964373 [patent_app_country] => US [patent_app_date] => 2019-12-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2441 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16964373 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/964373
Logarithmic current-to-voltage conversion circuit having temperature compensation function Dec 8, 2019 Issued
Array ( [id] => 16739546 [patent_doc_number] => 10965219 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-03-30 [patent_title] => Idle ring detection for a multi-output power converter [patent_app_type] => utility [patent_app_number] => 16/703440 [patent_app_country] => US [patent_app_date] => 2019-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 4139 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16703440 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/703440
Idle ring detection for a multi-output power converter Dec 3, 2019 Issued
Array ( [id] => 16219085 [patent_doc_number] => 10734911 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-08-04 [patent_title] => Power module including multiple signal wiring patterns disposed on an insulating substrate [patent_app_type] => utility [patent_app_number] => 16/591183 [patent_app_country] => US [patent_app_date] => 2019-10-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 35 [patent_figures_cnt] => 46 [patent_no_of_words] => 17827 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16591183 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/591183
Power module including multiple signal wiring patterns disposed on an insulating substrate Oct 1, 2019 Issued
Array ( [id] => 16959543 [patent_doc_number] => 11063427 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-07-13 [patent_title] => DC transmission apparatus, surge control circuit and method [patent_app_type] => utility [patent_app_number] => 16/589814 [patent_app_country] => US [patent_app_date] => 2019-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 7666 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 223 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16589814 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/589814
DC transmission apparatus, surge control circuit and method Sep 30, 2019 Issued
Array ( [id] => 17788288 [patent_doc_number] => 11411428 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-08-09 [patent_title] => Power converter, power conversion system [patent_app_type] => utility [patent_app_number] => 16/582156 [patent_app_country] => US [patent_app_date] => 2019-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 5533 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [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] => 16582156 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/582156
Power converter, power conversion system Sep 24, 2019 Issued
Array ( [id] => 17971881 [patent_doc_number] => 11489436 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-11-01 [patent_title] => System and apparatus to provide current compensation [patent_app_type] => utility [patent_app_number] => 16/579420 [patent_app_country] => US [patent_app_date] => 2019-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 9073 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16579420 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/579420
System and apparatus to provide current compensation Sep 22, 2019 Issued
Array ( [id] => 15370855 [patent_doc_number] => 20200021192 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-16 [patent_title] => DRIVE SCHEME FOR WEAKLY COUPLED COILS [patent_app_type] => utility [patent_app_number] => 16/579633 [patent_app_country] => US [patent_app_date] => 2019-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6156 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16579633 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/579633
PWM/PFM drive scheme for mutually coupled inductive coils Sep 22, 2019 Issued
Array ( [id] => 16716445 [patent_doc_number] => 20210083592 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-03-18 [patent_title] => VOLTAGE DOUBLING VARIABLE FREQUENCY DRIVE [patent_app_type] => utility [patent_app_number] => 16/571092 [patent_app_country] => US [patent_app_date] => 2019-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3136 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16571092 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/571092
Voltage doubling variable frequency drive Sep 13, 2019 Issued
Array ( [id] => 15333437 [patent_doc_number] => 20200007048 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-02 [patent_title] => POWER CONVERTER WITH ACTIVE CLAMP [patent_app_type] => utility [patent_app_number] => 16/569924 [patent_app_country] => US [patent_app_date] => 2019-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6181 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 184 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16569924 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/569924
Power converter with active clamp Sep 12, 2019 Issued
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