Search

David Hung Vu

Examiner (ID: 356, Phone: (571)272-1831 , Office: P/2844 )

Most Active Art Unit
2821
Art Unit(s)
2817, 2828, 2844, 2502, 2821
Total Applications
1734
Issued Applications
1511
Pending Applications
64
Abandoned Applications
163

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 10206472 [patent_doc_number] => 20150091460 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-04-02 [patent_title] => 'Power Supply Circuit and Luminaire' [patent_app_type] => utility [patent_app_number] => 14/188015 [patent_app_country] => US [patent_app_date] => 2014-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 11508 [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] => 14188015 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/188015
Power Supply Circuit and Luminaire Feb 23, 2014 Abandoned
Array ( [id] => 9768549 [patent_doc_number] => 20140292212 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-10-02 [patent_title] => 'Device for Improving Power Efficiency for Power Factor Corrections' [patent_app_type] => utility [patent_app_number] => 14/186939 [patent_app_country] => US [patent_app_date] => 2014-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 2722 [patent_no_of_claims] => 9 [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] => 14186939 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/186939
Device for improving power efficiency for power factor corrections Feb 20, 2014 Issued
Array ( [id] => 10864718 [patent_doc_number] => 08890426 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-11-18 [patent_title] => 'Portable lighting device' [patent_app_type] => utility [patent_app_number] => 14/184190 [patent_app_country] => US [patent_app_date] => 2014-02-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 16 [patent_no_of_words] => 9860 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 58 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14184190 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/184190
Portable lighting device Feb 18, 2014 Issued
Array ( [id] => 10113500 [patent_doc_number] => 09148928 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-09-29 [patent_title] => 'Light emitting diode driver' [patent_app_type] => utility [patent_app_number] => 14/163902 [patent_app_country] => US [patent_app_date] => 2014-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 2786 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14163902 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/163902
Light emitting diode driver Jan 23, 2014 Issued
Array ( [id] => 9515687 [patent_doc_number] => 20140152179 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-06-05 [patent_title] => 'PREHEATING CIRCUIT FOR ELECTRONIC BALLAST' [patent_app_type] => utility [patent_app_number] => 14/070641 [patent_app_country] => US [patent_app_date] => 2013-11-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 5108 [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] => 14070641 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/070641
Preheating circuit for electronic ballast Nov 3, 2013 Issued
Array ( [id] => 10858337 [patent_doc_number] => 08884541 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-11-11 [patent_title] => 'Dimming for constant current LED driver circuit' [patent_app_type] => utility [patent_app_number] => 14/069508 [patent_app_country] => US [patent_app_date] => 2013-11-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 4386 [patent_no_of_claims] => 20 [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] => 14069508 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/069508
Dimming for constant current LED driver circuit Oct 31, 2013 Issued
Array ( [id] => 9534931 [patent_doc_number] => 20140159577 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-06-12 [patent_title] => 'VEHICLE AUXILIARY LIGHT CONTROL UNIT' [patent_app_type] => utility [patent_app_number] => 14/068716 [patent_app_country] => US [patent_app_date] => 2013-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 2215 [patent_no_of_claims] => 13 [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] => 14068716 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/068716
Vehicle auxiliary light control unit Oct 30, 2013 Issued
Array ( [id] => 9460812 [patent_doc_number] => 20140125238 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-05-08 [patent_title] => 'APPARATUS FOR CONTROLLING LIGHT EMITIING DEVICES' [patent_app_type] => utility [patent_app_number] => 14/068125 [patent_app_country] => US [patent_app_date] => 2013-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5923 [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] => 14068125 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/068125
Apparatus for controlling light emitting devices Oct 30, 2013 Issued
Array ( [id] => 9558279 [patent_doc_number] => 20140175991 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-06-26 [patent_title] => 'PRESENCE SENSOR-CONTROLLED LIGHTING APPARATUS' [patent_app_type] => utility [patent_app_number] => 14/067845 [patent_app_country] => US [patent_app_date] => 2013-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1724 [patent_no_of_claims] => 8 [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] => 14067845 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/067845
PRESENCE SENSOR-CONTROLLED LIGHTING APPARATUS Oct 29, 2013 Abandoned
Array ( [id] => 9460820 [patent_doc_number] => 20140125246 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-05-08 [patent_title] => 'CONTROL CIRCUIT FOR LIGHT EMITTING APPARATUS' [patent_app_type] => utility [patent_app_number] => 14/066009 [patent_app_country] => US [patent_app_date] => 2013-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 7061 [patent_no_of_claims] => 18 [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] => 14066009 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/066009
Control circuit for light emitting apparatus Oct 28, 2013 Issued
Array ( [id] => 10883200 [patent_doc_number] => 08907583 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2014-12-09 [patent_title] => 'LED driving device' [patent_app_type] => utility [patent_app_number] => 14/066268 [patent_app_country] => US [patent_app_date] => 2013-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 4267 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 304 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14066268 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/066268
LED driving device Oct 28, 2013 Issued
Array ( [id] => 10023888 [patent_doc_number] => 09066397 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-06-23 [patent_title] => 'Time division modulation with average current regulation for independent control of arrays of light emitting diodes' [patent_app_type] => utility [patent_app_number] => 14/065159 [patent_app_country] => US [patent_app_date] => 2013-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 15 [patent_no_of_words] => 14579 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14065159 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/065159
Time division modulation with average current regulation for independent control of arrays of light emitting diodes Oct 27, 2013 Issued
Array ( [id] => 9627270 [patent_doc_number] => 08796956 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-08-05 [patent_title] => 'Driving device' [patent_app_type] => utility [patent_app_number] => 14/029085 [patent_app_country] => US [patent_app_date] => 2013-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 28 [patent_figures_cnt] => 36 [patent_no_of_words] => 18299 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14029085 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/029085
Driving device Sep 16, 2013 Issued
Array ( [id] => 9828210 [patent_doc_number] => 08937441 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2015-01-20 [patent_title] => 'Surge suppressor' [patent_app_type] => utility [patent_app_number] => 14/014741 [patent_app_country] => US [patent_app_date] => 2013-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 1806 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14014741 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/014741
Surge suppressor Aug 29, 2013 Issued
Array ( [id] => 9542998 [patent_doc_number] => 20140167645 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-06-19 [patent_title] => 'Lighting Apparatus and Lighting System' [patent_app_type] => utility [patent_app_number] => 14/014456 [patent_app_country] => US [patent_app_date] => 2013-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 5833 [patent_no_of_claims] => 6 [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] => 14014456 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/014456
Lighting Apparatus and Lighting System Aug 29, 2013 Abandoned
Array ( [id] => 9828204 [patent_doc_number] => 08937435 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2015-01-20 [patent_title] => 'Diode bridge' [patent_app_type] => utility [patent_app_number] => 14/011253 [patent_app_country] => US [patent_app_date] => 2013-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4688 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14011253 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/011253
Diode bridge Aug 26, 2013 Issued
Array ( [id] => 9291838 [patent_doc_number] => 20140035472 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-02-06 [patent_title] => 'REDUCING LUMEN VARIABILITY OVER A RANGE OF COLOR TEMPERATURES OF AN OUTPUT OF TUNABLE-WHITE LED LIGHTING DEVICES' [patent_app_type] => utility [patent_app_number] => 13/972341 [patent_app_country] => US [patent_app_date] => 2013-08-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 21 [patent_no_of_words] => 18047 [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] => 13972341 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/972341
Reducing lumen variability over a range of color temperatures of an output of tunable-white LED lighting devices Aug 20, 2013 Issued
Array ( [id] => 9683061 [patent_doc_number] => 20140239824 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-08-28 [patent_title] => 'LED CONTROLLING CIRCUIT WITH HIGH POWER FACTOR AND AN LED LIGHTING DEVICE' [patent_app_type] => utility [patent_app_number] => 14/350113 [patent_app_country] => US [patent_app_date] => 2013-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5081 [patent_no_of_claims] => 6 [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] => 14350113 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/350113
LED controlling circuit with high power factor and an LED lighting device Aug 11, 2013 Issued
Array ( [id] => 9663171 [patent_doc_number] => 08810160 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-08-19 [patent_title] => 'Switched mode power converter and method of operating the same' [patent_app_type] => utility [patent_app_number] => 13/963271 [patent_app_country] => US [patent_app_date] => 2013-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 5087 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13963271 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/963271
Switched mode power converter and method of operating the same Aug 8, 2013 Issued
Array ( [id] => 10068390 [patent_doc_number] => 09107263 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-08-11 [patent_title] => 'Apparatus and method for bypassing failed LEDS in lighting arrays' [patent_app_type] => utility [patent_app_number] => 13/947760 [patent_app_country] => US [patent_app_date] => 2013-07-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 27 [patent_figures_cnt] => 39 [patent_no_of_words] => 10742 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 15 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13947760 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/947760
Apparatus and method for bypassing failed LEDS in lighting arrays Jul 21, 2013 Issued
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