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] => 16708236 [patent_doc_number] => 10958183 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-03-23 [patent_title] => Matrix converter control using predicted output current [patent_app_type] => utility [patent_app_number] => 16/466622 [patent_app_country] => US [patent_app_date] => 2017-10-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 18 [patent_no_of_words] => 10429 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16466622 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/466622
Matrix converter control using predicted output current Oct 23, 2017 Issued
Array ( [id] => 17408623 [patent_doc_number] => 11249503 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-02-15 [patent_title] => Current source with nonvolatile storage element [patent_app_type] => utility [patent_app_number] => 16/342997 [patent_app_country] => US [patent_app_date] => 2017-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 24 [patent_no_of_words] => 10528 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16342997 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/342997
Current source with nonvolatile storage element Oct 2, 2017 Issued
Array ( [id] => 15001159 [patent_doc_number] => 20190319537 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-10-17 [patent_title] => CONTROL DEVICE FOR A DC-TO-DC CONVERTER, DC-TO-DC CONVERTER, AND METHOD FOR CONTROLLING A DC-TO-DC CONVERTER [patent_app_type] => utility [patent_app_number] => 16/341208 [patent_app_country] => US [patent_app_date] => 2017-10-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3655 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16341208 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/341208
Control device and method for controlling a DC-to-DC converter having input interference Oct 1, 2017 Issued
Array ( [id] => 12597681 [patent_doc_number] => 20180091057 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-03-29 [patent_title] => Inrush current limiting method based on buck+boost topology [patent_app_type] => utility [patent_app_number] => 15/732103 [patent_app_country] => US [patent_app_date] => 2017-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4011 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [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] => 15732103 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/732103
Inrush current limiting method based on buck+boost topology Sep 18, 2017 Abandoned
Array ( [id] => 12652023 [patent_doc_number] => 20180109172 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-04-19 [patent_title] => DAMPER AND AN ELECTRICAL ENERGY CONVERTING DEVICE USING THE SAME [patent_app_type] => utility [patent_app_number] => 15/708290 [patent_app_country] => US [patent_app_date] => 2017-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2802 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15708290 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/708290
Damper and an electrical energy converting device using the same Sep 18, 2017 Issued
Array ( [id] => 12694921 [patent_doc_number] => 20180123473 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-05-03 [patent_title] => BRIDGE CIRCUIT AND RECTIFIER INCLUDING THE SAME [patent_app_type] => utility [patent_app_number] => 15/708775 [patent_app_country] => US [patent_app_date] => 2017-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12783 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 15708775 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/708775
Bridge circuit and rectifier including the same Sep 18, 2017 Issued
Array ( [id] => 14080725 [patent_doc_number] => 20190089250 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-03-21 [patent_title] => POWER CONVERTER WITH ZERO-VOLTAGE SWITCHING [patent_app_type] => utility [patent_app_number] => 15/707257 [patent_app_country] => US [patent_app_date] => 2017-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8282 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15707257 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/707257
Power converter with zero-voltage switching Sep 17, 2017 Issued
Array ( [id] => 15612235 [patent_doc_number] => 10587192 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-03-10 [patent_title] => DC-DC voltage reducing converter with a test mode operation [patent_app_type] => utility [patent_app_number] => 16/333206 [patent_app_country] => US [patent_app_date] => 2017-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4236 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 305 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16333206 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/333206
DC-DC voltage reducing converter with a test mode operation Sep 12, 2017 Issued
Array ( [id] => 12458946 [patent_doc_number] => 09985522 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2018-05-29 [patent_title] => Digital control algorithm using only two target voltage thresholds for generating a pulse width modulated signal driving the gate of a power MOS to implement a switch mode power supply [patent_app_type] => utility [patent_app_number] => 15/703502 [patent_app_country] => US [patent_app_date] => 2017-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 10470 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15703502 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/703502
Digital control algorithm using only two target voltage thresholds for generating a pulse width modulated signal driving the gate of a power MOS to implement a switch mode power supply Sep 12, 2017 Issued
Array ( [id] => 14064737 [patent_doc_number] => 10236680 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-03-19 [patent_title] => Control circuit of switching power supply device [patent_app_type] => utility [patent_app_number] => 15/661568 [patent_app_country] => US [patent_app_date] => 2017-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 24 [patent_no_of_words] => 10467 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 213 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15661568 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/661568
Control circuit of switching power supply device Jul 26, 2017 Issued
Array ( [id] => 12555690 [patent_doc_number] => 10014795 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-07-03 [patent_title] => Power converter [patent_app_type] => utility [patent_app_number] => 15/658465 [patent_app_country] => US [patent_app_date] => 2017-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 8005 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 277 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15658465 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/658465
Power converter Jul 24, 2017 Issued
Array ( [id] => 16433488 [patent_doc_number] => 10833591 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-11-10 [patent_title] => Single-stage DC-DC power converter [patent_app_type] => utility [patent_app_number] => 15/657786 [patent_app_country] => US [patent_app_date] => 2017-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2071 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 238 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15657786 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/657786
Single-stage DC-DC power converter Jul 23, 2017 Issued
Array ( [id] => 13350701 [patent_doc_number] => 20180226890 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-09 [patent_title] => SERIES STACKED DC-DC POWER CONVERSION [patent_app_type] => utility [patent_app_number] => 15/650355 [patent_app_country] => US [patent_app_date] => 2017-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16475 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 15650355 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/650355
Series stacked DC-DC converter with serially connected DC power sources and capacitors Jul 13, 2017 Issued
Array ( [id] => 11995920 [patent_doc_number] => 20170300075 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-10-19 [patent_title] => 'Low-Dropout Regulator' [patent_app_type] => utility [patent_app_number] => 15/641493 [patent_app_country] => US [patent_app_date] => 2017-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3789 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [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] => 15641493 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/641493
Low-Dropout Regulator Jul 4, 2017 Abandoned
Array ( [id] => 15287317 [patent_doc_number] => 10516332 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-12-24 [patent_title] => Induced voltage suppression device, motor system, and power conversion system [patent_app_type] => utility [patent_app_number] => 16/316881 [patent_app_country] => US [patent_app_date] => 2017-07-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3230 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16316881 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/316881
Induced voltage suppression device, motor system, and power conversion system Jul 3, 2017 Issued
Array ( [id] => 14645339 [patent_doc_number] => 10367423 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2019-07-30 [patent_title] => Power conversion device [patent_app_type] => utility [patent_app_number] => 16/317340 [patent_app_country] => US [patent_app_date] => 2017-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 15 [patent_no_of_words] => 7366 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 317 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16317340 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/317340
Power conversion device Jun 21, 2017 Issued
Array ( [id] => 16495616 [patent_doc_number] => 10861663 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-12-08 [patent_title] => Relay device and a method to detect open-circuit failures [patent_app_type] => utility [patent_app_number] => 16/063051 [patent_app_country] => US [patent_app_date] => 2017-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 13306 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 386 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16063051 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/063051
Relay device and a method to detect open-circuit failures Jun 15, 2017 Issued
Array ( [id] => 12093848 [patent_doc_number] => 20170350941 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-12-07 [patent_title] => 'SOLID STATE SWITCH POWER EMULATOR' [patent_app_type] => utility [patent_app_number] => 15/615861 [patent_app_country] => US [patent_app_date] => 2017-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 3725 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [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] => 15615861 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/615861
Solid state switch power emulator Jun 6, 2017 Issued
Array ( [id] => 13599829 [patent_doc_number] => 20180351463 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-12-06 [patent_title] => IDLE RING DETECTION FOR A MULTI-OUTPUT POWER CONVERTER [patent_app_type] => utility [patent_app_number] => 15/612761 [patent_app_country] => US [patent_app_date] => 2017-06-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4107 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15612761 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/612761
Idle ring detection for a multi-output power converter Jun 1, 2017 Issued
Array ( [id] => 12377418 [patent_doc_number] => 09960706 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2018-05-01 [patent_title] => Synchronization rectification device [patent_app_type] => utility [patent_app_number] => 15/603951 [patent_app_country] => US [patent_app_date] => 2017-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 4354 [patent_no_of_claims] => 12 [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] => 15603951 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/603951
Synchronization rectification device May 23, 2017 Issued
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