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] => 14574605 [patent_doc_number] => 20190214910 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-07-11 [patent_title] => DC-DC CONVERTER CIRCUIT AND CORRESPONDING CONVERSION METHOD [patent_app_type] => utility [patent_app_number] => 16/222557 [patent_app_country] => US [patent_app_date] => 2018-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7567 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16222557 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/222557
DC-DC converter circuit with synchronization module and corresponding conversion method Dec 16, 2018 Issued
Array ( [id] => 14511145 [patent_doc_number] => 20190199227 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-06-27 [patent_title] => POWER CONVERTER WITH ACTIVE CLAMP [patent_app_type] => utility [patent_app_number] => 16/221945 [patent_app_country] => US [patent_app_date] => 2018-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6160 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 197 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16221945 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/221945
Power converter with active clamp Dec 16, 2018 Issued
Array ( [id] => 15788247 [patent_doc_number] => 10627846 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2020-04-21 [patent_title] => Method and apparatus for low-output-noise, high-power-supply-rejection and high-precision trimmable band-gap voltage reference suitable for production test [patent_app_type] => utility [patent_app_number] => 16/205561 [patent_app_country] => US [patent_app_date] => 2018-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 3831 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16205561 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/205561
Method and apparatus for low-output-noise, high-power-supply-rejection and high-precision trimmable band-gap voltage reference suitable for production test Nov 29, 2018 Issued
Array ( [id] => 15985975 [patent_doc_number] => 10673330 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-06-02 [patent_title] => Switching regulator with a frequency characteristics separation circuit and a phase compensation circuit [patent_app_type] => utility [patent_app_number] => 16/198033 [patent_app_country] => US [patent_app_date] => 2018-11-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 4855 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 315 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16198033 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/198033
Switching regulator with a frequency characteristics separation circuit and a phase compensation circuit Nov 20, 2018 Issued
Array ( [id] => 17803801 [patent_doc_number] => 11418117 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-08-16 [patent_title] => Single inductor multi-output buck-boost converter and control method thereof [patent_app_type] => utility [patent_app_number] => 16/191592 [patent_app_country] => US [patent_app_date] => 2018-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2308 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 197 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16191592 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/191592
Single inductor multi-output buck-boost converter and control method thereof Nov 14, 2018 Issued
Array ( [id] => 17254594 [patent_doc_number] => 11190101 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-11-30 [patent_title] => System and method for balancing current of converter phases [patent_app_type] => utility [patent_app_number] => 16/174361 [patent_app_country] => US [patent_app_date] => 2018-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 5250 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16174361 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/174361
System and method for balancing current of converter phases Oct 29, 2018 Issued
Array ( [id] => 16285645 [patent_doc_number] => 20200279247 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-09-03 [patent_title] => DEVICE FOR TRANSMITTING AND RECEIVING A WIRELESS RADIO SIGNAL, CORRESPONDING METHOD AND PROGRAM [patent_app_type] => utility [patent_app_number] => 16/651220 [patent_app_country] => US [patent_app_date] => 2018-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4630 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 16651220 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/651220
Device for transmitting and receiving a wireless radio signal, corresponding method and program Sep 27, 2018 Issued
Array ( [id] => 13910475 [patent_doc_number] => 20190044442 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-02-07 [patent_title] => SELF-TUNING ZERO CURRENT DETECTION CIRCUIT [patent_app_type] => utility [patent_app_number] => 16/144961 [patent_app_country] => US [patent_app_date] => 2018-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7184 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16144961 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/144961
Self-tuning zero current detection circuit Sep 26, 2018 Issued
Array ( [id] => 14368095 [patent_doc_number] => 10305367 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-05-28 [patent_title] => Power conversion circuit [patent_app_type] => utility [patent_app_number] => 16/134456 [patent_app_country] => US [patent_app_date] => 2018-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 16 [patent_no_of_words] => 12986 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 444 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16134456 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/134456
Power conversion circuit Sep 17, 2018 Issued
Array ( [id] => 14383627 [patent_doc_number] => 20190165726 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-30 [patent_title] => POWER STORAGE POWER CONDITIONER [patent_app_type] => utility [patent_app_number] => 16/129814 [patent_app_country] => US [patent_app_date] => 2018-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7312 [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] => 16129814 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/129814
Power storage power conditioner Sep 12, 2018 Issued
Array ( [id] => 14046027 [patent_doc_number] => 20190079120 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-03-14 [patent_title] => VOLTAGE BOOSTER ISOLATION TRANSFORMER SYSTEM AND METHOD OF OPERATING THE SAME [patent_app_type] => utility [patent_app_number] => 16/129247 [patent_app_country] => US [patent_app_date] => 2018-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4682 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16129247 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/129247
Voltage booster isolation transformer system and method of operating the same Sep 11, 2018 Issued
Array ( [id] => 15626813 [patent_doc_number] => 20200083811 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-03-12 [patent_title] => REDUCED VOLTAGE SWITCHING OF A MAIN SWITCH IN FLYBACK POWER CONVERTERS [patent_app_type] => utility [patent_app_number] => 16/128324 [patent_app_country] => US [patent_app_date] => 2018-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8792 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16128324 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/128324
Reduced voltage switching of a main switch in flyback power converters Sep 10, 2018 Issued
Array ( [id] => 17018966 [patent_doc_number] => 11088618 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-08-10 [patent_title] => PWM DC-DC converter with linear voltage regulator for DC assist [patent_app_type] => utility [patent_app_number] => 16/122611 [patent_app_country] => US [patent_app_date] => 2018-09-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 4624 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [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] => 16122611 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/122611
PWM DC-DC converter with linear voltage regulator for DC assist Sep 4, 2018 Issued
Array ( [id] => 14080735 [patent_doc_number] => 20190089255 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-03-21 [patent_title] => CONTROL CIRCUIT AND CONTROL METHOD OF FLYBACK CONVERTER [patent_app_type] => utility [patent_app_number] => 16/118480 [patent_app_country] => US [patent_app_date] => 2018-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8977 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16118480 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/118480
Control circuit and control method of flyback converter Aug 30, 2018 Issued
Array ( [id] => 15235415 [patent_doc_number] => 10505440 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2019-12-10 [patent_title] => Active snubber for switching power converter [patent_app_type] => utility [patent_app_number] => 16/119259 [patent_app_country] => US [patent_app_date] => 2018-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 6225 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 201 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16119259 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/119259
Active snubber for switching power converter Aug 30, 2018 Issued
Array ( [id] => 15401911 [patent_doc_number] => 10541621 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-01-21 [patent_title] => AC/DC converter extracting a forward voltage and a flyback voltage from the secondary winding [patent_app_type] => utility [patent_app_number] => 16/118575 [patent_app_country] => US [patent_app_date] => 2018-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 29 [patent_figures_cnt] => 29 [patent_no_of_words] => 14269 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16118575 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/118575
AC/DC converter extracting a forward voltage and a flyback voltage from the secondary winding Aug 30, 2018 Issued
Array ( [id] => 14126739 [patent_doc_number] => 10250244 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-04-02 [patent_title] => Minimum pulse-width assurance [patent_app_type] => utility [patent_app_number] => 16/042103 [patent_app_country] => US [patent_app_date] => 2018-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6751 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 279 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16042103 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/042103
Minimum pulse-width assurance Jul 22, 2018 Issued
Array ( [id] => 13560135 [patent_doc_number] => 20180331615 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-11-15 [patent_title] => SECONDARY-SIDE CONTROL CIRCUIT, CONTROL METHOD AND FLYBACK CONVERTER THEREOF [patent_app_type] => utility [patent_app_number] => 16/025032 [patent_app_country] => US [patent_app_date] => 2018-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6847 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 16025032 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/025032
Secondary-side control circuit, control method and flyback converter thereof Jul 1, 2018 Issued
Array ( [id] => 13741709 [patent_doc_number] => 20180375324 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-12-27 [patent_title] => Safety Protection for Class 2 Electrical Circuits [patent_app_type] => utility [patent_app_number] => 16/010675 [patent_app_country] => US [patent_app_date] => 2018-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1746 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16010675 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/010675
Safety Protection for Class 2 Electrical Circuits Jun 17, 2018 Abandoned
Array ( [id] => 13621261 [patent_doc_number] => 20180362182 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-12-20 [patent_title] => LIGHTNING PROTECTION SYSTEM AND ASSOCIATED NOSE [patent_app_type] => utility [patent_app_number] => 16/009798 [patent_app_country] => US [patent_app_date] => 2018-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8267 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 100 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16009798 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/009798
Lightning protection system and associated nose Jun 14, 2018 Issued
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