Search

Joseph Chang

Examiner (ID: 18846, Phone: (571)272-1759 , Office: P/2842 )

Most Active Art Unit
2817
Art Unit(s)
2842, 2817, 2843, 2836, 2849
Total Applications
2209
Issued Applications
1939
Pending Applications
126
Abandoned Applications
172

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 9783603 [patent_doc_number] => 20140300423 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-10-09 [patent_title] => 'CLOCK GENERATING CIRCUIT HAVING PARASITIC OSCILLATION SUPPRESSING UNIT AND METHOD OF SUPPRESSING PARASITIC OSCILLATION USING THE SAME' [patent_app_type] => utility [patent_app_number] => 14/048950 [patent_app_country] => US [patent_app_date] => 2013-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5153 [patent_no_of_claims] => 14 [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] => 14048950 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/048950
CLOCK GENERATING CIRCUIT HAVING PARASITIC OSCILLATION SUPPRESSING UNIT AND METHOD OF SUPPRESSING PARASITIC OSCILLATION USING THE SAME Oct 7, 2013 Abandoned
Array ( [id] => 13817051 [patent_doc_number] => 10185294 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-01-22 [patent_title] => Voltage control device and method for controlling the same [patent_app_type] => utility [patent_app_number] => 14/430734 [patent_app_country] => US [patent_app_date] => 2013-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 7937 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 101 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14430734 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/430734
Voltage control device and method for controlling the same Sep 23, 2013 Issued
Array ( [id] => 10022887 [patent_doc_number] => 09065383 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-06-23 [patent_title] => 'Oscillation circuit, semiconductor integrated circuit device, vibrating device, electronic apparatus, and moving object' [patent_app_type] => utility [patent_app_number] => 14/033746 [patent_app_country] => US [patent_app_date] => 2013-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 25 [patent_no_of_words] => 13081 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 237 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14033746 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/033746
Oscillation circuit, semiconductor integrated circuit device, vibrating device, electronic apparatus, and moving object Sep 22, 2013 Issued
Array ( [id] => 10054061 [patent_doc_number] => 09093949 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-07-28 [patent_title] => 'Current re-use oscillator, doubler and regulator circuit' [patent_app_type] => utility [patent_app_number] => 14/031530 [patent_app_country] => US [patent_app_date] => 2013-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 18 [patent_no_of_words] => 9742 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14031530 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/031530
Current re-use oscillator, doubler and regulator circuit Sep 18, 2013 Issued
Array ( [id] => 10165985 [patent_doc_number] => 09197221 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-11-24 [patent_title] => 'Class-F CMOS oscillator incorporating differential passive network' [patent_app_type] => utility [patent_app_number] => 14/027635 [patent_app_country] => US [patent_app_date] => 2013-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 26 [patent_figures_cnt] => 39 [patent_no_of_words] => 10603 [patent_no_of_claims] => 34 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14027635 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/027635
Class-F CMOS oscillator incorporating differential passive network Sep 15, 2013 Issued
Array ( [id] => 9220551 [patent_doc_number] => 20140015326 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-01-16 [patent_title] => 'GRID-CONNECTED INVERTER, INVERTER ARRANGEMENT AND METHOD FOR OPERATING AN INVERTER ARRANGEMENT' [patent_app_type] => utility [patent_app_number] => 14/025944 [patent_app_country] => US [patent_app_date] => 2013-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5371 [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] => 14025944 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/025944
Grid-connected inverter, inverter arrangement and method for operating an inverter arrangement Sep 12, 2013 Issued
Array ( [id] => 10370985 [patent_doc_number] => 20150255991 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-09-10 [patent_title] => 'POWER RECEIVING DEVICE, POWER SUPPLY DEVICE, AND WIRELESS POWER TRANSFER APPARATUS' [patent_app_type] => utility [patent_app_number] => 14/433072 [patent_app_country] => US [patent_app_date] => 2013-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 9977 [patent_no_of_claims] => 12 [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] => 14433072 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/433072
POWER RECEIVING DEVICE, POWER SUPPLY DEVICE, AND WIRELESS POWER TRANSFER APPARATUS Sep 11, 2013 Abandoned
Array ( [id] => 10883353 [patent_doc_number] => 08907736 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-12-09 [patent_title] => 'Digital pulse width modulation controller' [patent_app_type] => utility [patent_app_number] => 14/022919 [patent_app_country] => US [patent_app_date] => 2013-09-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2289 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 224 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14022919 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/022919
Digital pulse width modulation controller Sep 9, 2013 Issued
Array ( [id] => 11007663 [patent_doc_number] => 20160204615 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-07-14 [patent_title] => 'POWER SYSTEM FOR AN AIRCRAFT WITH DUAL HYBRID ENERGY SOURCES' [patent_app_type] => utility [patent_app_number] => 14/914871 [patent_app_country] => US [patent_app_date] => 2013-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4847 [patent_no_of_claims] => 15 [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] => 14914871 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/914871
Power system for an aircraft with dual hybrid energy sources Sep 8, 2013 Issued
Array ( [id] => 9202689 [patent_doc_number] => 20140001866 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-01-02 [patent_title] => 'COMMUNICATION SYSTEM AND RECHARGEABLE BATTERY SYSTEM' [patent_app_type] => utility [patent_app_number] => 14/016585 [patent_app_country] => US [patent_app_date] => 2013-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3901 [patent_no_of_claims] => 4 [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] => 14016585 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/016585
COMMUNICATION SYSTEM AND RECHARGEABLE BATTERY SYSTEM Sep 2, 2013 Abandoned
Array ( [id] => 11088299 [patent_doc_number] => 20160285268 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-09-29 [patent_title] => 'REDUNDANT POINT OF COMMON COUPLING (PCC) TO REDUCE RISK OF MICROGRID\'S ISLANDING' [patent_app_type] => utility [patent_app_number] => 14/915967 [patent_app_country] => US [patent_app_date] => 2013-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3109 [patent_no_of_claims] => 21 [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] => 14915967 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/915967
Redundant point of common coupling (PCC) to reduce risk of microgrid's islanding Sep 2, 2013 Issued
Array ( [id] => 9614022 [patent_doc_number] => 20140203880 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-07-24 [patent_title] => 'BIAS CURRENT CIRCUIT AND SEMICONDUCTOR INTEGRATED CIRCUIT' [patent_app_type] => utility [patent_app_number] => 14/016178 [patent_app_country] => US [patent_app_date] => 2013-09-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3386 [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] => 14016178 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/016178
Bias current circuit and semiconductor integrated circuit Sep 1, 2013 Issued
Array ( [id] => 9195573 [patent_doc_number] => 20130334888 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-12-19 [patent_title] => 'SOLAR PHOTOVOLTAIC THREE-PHASE MICRO-INVERTER AND SOLAR PHOTOVOLTAIC POWER GENERATION SYSTEM' [patent_app_type] => utility [patent_app_number] => 13/973705 [patent_app_country] => US [patent_app_date] => 2013-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3843 [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] => 13973705 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/973705
Solar photovoltaic three-phase micro-inverter and solar photovoltaic power generation system Aug 21, 2013 Issued
Array ( [id] => 10322312 [patent_doc_number] => 20150207316 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-07-23 [patent_title] => 'DC BUILDING SYSTEM WITH ENERGY STORAGE AND CONTROL SYSTEM' [patent_app_type] => utility [patent_app_number] => 14/421914 [patent_app_country] => US [patent_app_date] => 2013-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 10267 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 4 [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] => 14421914 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/421914
DC BUILDING SYSTEM WITH ENERGY STORAGE AND CONTROL SYSTEM Aug 15, 2013 Abandoned
Array ( [id] => 9188994 [patent_doc_number] => 20130328309 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-12-12 [patent_title] => 'MATRIX CONVERTER APPARATUS FOR WIND-POWER GENERATION, METHOD FOR CONTROLLING MATRIX CONVERTER, WIND-POWER GENERATOR APPARATUS, WIND FARM, AND METHOD FOR MANUFACTURING WIND TURBINE' [patent_app_type] => utility [patent_app_number] => 13/966226 [patent_app_country] => US [patent_app_date] => 2013-08-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 12874 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 4 [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] => 13966226 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/966226
MATRIX CONVERTER APPARATUS FOR WIND-POWER GENERATION, METHOD FOR CONTROLLING MATRIX CONVERTER, WIND-POWER GENERATOR APPARATUS, WIND FARM, AND METHOD FOR MANUFACTURING WIND TURBINE Aug 12, 2013 Abandoned
Array ( [id] => 12203108 [patent_doc_number] => 09906189 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-02-27 [patent_title] => 'Resonant switched-capacitor gyrator-type converter with local MPPT capability for PV cells' [patent_app_type] => utility [patent_app_number] => 14/419592 [patent_app_country] => US [patent_app_date] => 2013-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 5721 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14419592 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/419592
Resonant switched-capacitor gyrator-type converter with local MPPT capability for PV cells Aug 4, 2013 Issued
Array ( [id] => 11924299 [patent_doc_number] => 09791878 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-10-17 [patent_title] => 'Digital voltage controller' [patent_app_type] => utility [patent_app_number] => 14/418953 [patent_app_country] => US [patent_app_date] => 2013-08-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 6024 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [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] => 14418953 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/418953
Digital voltage controller Aug 1, 2013 Issued
Array ( [id] => 9818579 [patent_doc_number] => 08928369 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2015-01-06 [patent_title] => 'Low power local oscillator quadrature generator' [patent_app_type] => utility [patent_app_number] => 13/955197 [patent_app_country] => US [patent_app_date] => 2013-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4877 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 237 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13955197 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/955197
Low power local oscillator quadrature generator Jul 30, 2013 Issued
Array ( [id] => 9824269 [patent_doc_number] => 08933758 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2015-01-13 [patent_title] => 'Bridge-stabilized oscillator with feedback control' [patent_app_type] => utility [patent_app_number] => 13/954067 [patent_app_country] => US [patent_app_date] => 2013-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1646 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13954067 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/954067
Bridge-stabilized oscillator with feedback control Jul 29, 2013 Issued
Array ( [id] => 9855594 [patent_doc_number] => 20150035611 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-02-05 [patent_title] => 'VCO WITH LINEAR GAIN OVER A VERY WIDE TUNING RANGE' [patent_app_type] => utility [patent_app_number] => 13/954277 [patent_app_country] => US [patent_app_date] => 2013-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3117 [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] => 13954277 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/954277
VCO with linear gain over a very wide tuning range Jul 29, 2013 Issued
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