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] => 12096006 [patent_doc_number] => 20170353099 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-12-07 [patent_title] => 'SECONDARY-SIDE CONTROL CIRCUIT, CONTROL METHOD AND FLYBACK CONVERTER THEREOF' [patent_app_type] => utility [patent_app_number] => 15/601782 [patent_app_country] => US [patent_app_date] => 2017-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 7659 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15601782 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/601782
Secondary-side control circuit, control method and flyback converter thereof May 21, 2017 Issued
Array ( [id] => 14368139 [patent_doc_number] => 10305390 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-05-28 [patent_title] => Filter circuit for eliminating inrush current, DC coil control circuit, and electromagnetic contactor [patent_app_type] => utility [patent_app_number] => 15/599929 [patent_app_country] => US [patent_app_date] => 2017-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4215 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 256 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15599929 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/599929
Filter circuit for eliminating inrush current, DC coil control circuit, and electromagnetic contactor May 18, 2017 Issued
Array ( [id] => 16365131 [patent_doc_number] => 20200321882 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-08 [patent_title] => STACKABLE ISOLATED VOLTAGE OPTIMIZATION MODULE [patent_app_type] => utility [patent_app_number] => 16/302399 [patent_app_country] => US [patent_app_date] => 2017-05-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5562 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16302399 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/302399
Stackable isolated voltage optimization module May 16, 2017 Issued
Array ( [id] => 13215799 [patent_doc_number] => 10122279 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-11-06 [patent_title] => Inverting buck-boost converter drive circuit and method [patent_app_type] => utility [patent_app_number] => 15/592757 [patent_app_country] => US [patent_app_date] => 2017-05-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 10 [patent_no_of_words] => 6093 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15592757 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/592757
Inverting buck-boost converter drive circuit and method May 10, 2017 Issued
Array ( [id] => 13560151 [patent_doc_number] => 20180331623 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-11-15 [patent_title] => INPUT/OUTPUT CIRCUIT [patent_app_type] => utility [patent_app_number] => 15/591621 [patent_app_country] => US [patent_app_date] => 2017-05-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4195 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15591621 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/591621
INPUT/OUTPUT CIRCUIT May 9, 2017 Abandoned
Array ( [id] => 12034238 [patent_doc_number] => 20170324337 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-09 [patent_title] => 'POWER CONVERSION DEVICE' [patent_app_type] => utility [patent_app_number] => 15/584043 [patent_app_country] => US [patent_app_date] => 2017-05-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 10435 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15584043 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/584043
Power conversion device May 1, 2017 Issued
Array ( [id] => 12203086 [patent_doc_number] => 09906166 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-02-27 [patent_title] => 'Method and device for controlling operation of inverter' [patent_app_type] => utility [patent_app_number] => 15/581723 [patent_app_country] => US [patent_app_date] => 2017-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 14 [patent_no_of_words] => 5901 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 208 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15581723 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/581723
Method and device for controlling operation of inverter Apr 27, 2017 Issued
Array ( [id] => 14493021 [patent_doc_number] => 10333314 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-06-25 [patent_title] => Multiple buck stage single boost stage optimizer [patent_app_type] => utility [patent_app_number] => 15/489278 [patent_app_country] => US [patent_app_date] => 2017-04-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 29 [patent_no_of_words] => 11190 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [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] => 15489278 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/489278
Multiple buck stage single boost stage optimizer Apr 16, 2017 Issued
Array ( [id] => 14734969 [patent_doc_number] => 10386882 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-08-20 [patent_title] => Control circuit [patent_app_type] => utility [patent_app_number] => 15/487746 [patent_app_country] => US [patent_app_date] => 2017-04-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 7002 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 8 [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] => 15487746 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/487746
Control circuit Apr 13, 2017 Issued
Array ( [id] => 11998004 [patent_doc_number] => 20170302159 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-10-19 [patent_title] => 'POWER FACTOR CORRECTION CIRCUITS AND METHODS INCLUDING PARTIAL POWER FACTOR CORRECTION OPERATION FOR BOOST AND BUCK POWER CONVERTERS' [patent_app_type] => utility [patent_app_number] => 15/487151 [patent_app_country] => US [patent_app_date] => 2017-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 19 [patent_no_of_words] => 26296 [patent_no_of_claims] => 39 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15487151 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/487151
Power factor correction circuits and methods including partial power factor correction operation for boost and buck power converters Apr 12, 2017 Issued
Array ( [id] => 11825399 [patent_doc_number] => 20170214336 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-07-27 [patent_title] => 'SEMICONDUCTOR MODULE, UPPER AND LOWER ARM KIT, AND THREE-LEVEL INVERTER' [patent_app_type] => utility [patent_app_number] => 15/482092 [patent_app_country] => US [patent_app_date] => 2017-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 25 [patent_figures_cnt] => 25 [patent_no_of_words] => 7309 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15482092 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/482092
Semiconductor module, upper and lower arm kit, and three-level inverter Apr 6, 2017 Issued
Array ( [id] => 12175490 [patent_doc_number] => 09893638 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2018-02-13 [patent_title] => 'Switched mode power supplies with adaptive reference voltage for controlling output transistor' [patent_app_type] => utility [patent_app_number] => 15/478151 [patent_app_country] => US [patent_app_date] => 2017-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6789 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [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] => 15478151 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/478151
Switched mode power supplies with adaptive reference voltage for controlling output transistor Apr 2, 2017 Issued
Array ( [id] => 12089521 [patent_doc_number] => 09843261 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-12-12 [patent_title] => 'Power conversion apparatus' [patent_app_type] => utility [patent_app_number] => 15/458261 [patent_app_country] => US [patent_app_date] => 2017-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 20 [patent_no_of_words] => 12824 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 538 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15458261 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/458261
Power conversion apparatus Mar 13, 2017 Issued
Array ( [id] => 15489293 [patent_doc_number] => 10560014 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-02-11 [patent_title] => Fault protection for voltage source converters [patent_app_type] => utility [patent_app_number] => 16/081440 [patent_app_country] => US [patent_app_date] => 2017-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5602 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 215 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16081440 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/081440
Fault protection for voltage source converters Feb 28, 2017 Issued
Array ( [id] => 15001155 [patent_doc_number] => 20190319535 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-10-17 [patent_title] => POWER SUPPLY DEVICE AND METHOD FOR CONTROLLING POWER SUPPLY DEVICE [patent_app_type] => utility [patent_app_number] => 16/471898 [patent_app_country] => US [patent_app_date] => 2017-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 20136 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16471898 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/471898
Power supply device and method for controlling the multi-phase interleaving operation of the power supply device Feb 22, 2017 Issued
Array ( [id] => 13122359 [patent_doc_number] => 10079539 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-09-18 [patent_title] => Power supply protection circuit [patent_app_type] => utility [patent_app_number] => 15/421951 [patent_app_country] => US [patent_app_date] => 2017-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3964 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15421951 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/421951
Power supply protection circuit Jan 31, 2017 Issued
Array ( [id] => 14754053 [patent_doc_number] => 20190260200 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-22 [patent_title] => POWER SUPPLY CONTROL APPARATUS [patent_app_type] => utility [patent_app_number] => 16/063820 [patent_app_country] => US [patent_app_date] => 2017-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5148 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 193 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16063820 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/063820
Power supply control apparatus having a wire protection unit Jan 12, 2017 Issued
Array ( [id] => 12955195 [patent_doc_number] => 09837894 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-12-05 [patent_title] => Chopper device [patent_app_type] => utility [patent_app_number] => 15/403551 [patent_app_country] => US [patent_app_date] => 2017-01-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 33 [patent_figures_cnt] => 33 [patent_no_of_words] => 8607 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15403551 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/403551
Chopper device Jan 10, 2017 Issued
Array ( [id] => 12955510 [patent_doc_number] => 09838000 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2017-12-05 [patent_title] => Minimum pulse-width assurance [patent_app_type] => utility [patent_app_number] => 15/389361 [patent_app_country] => US [patent_app_date] => 2016-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6708 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15389361 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/389361
Minimum pulse-width assurance Dec 21, 2016 Issued
Array ( [id] => 14905745 [patent_doc_number] => 20190296638 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-09-26 [patent_title] => POWER CONVERTER [patent_app_type] => utility [patent_app_number] => 16/343208 [patent_app_country] => US [patent_app_date] => 2016-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6561 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 239 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16343208 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/343208
Power converter with a parallel flat plate conductor electrically connected with a capacitor and a power module Dec 13, 2016 Issued
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