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] => 6247904 [patent_doc_number] => 20100026189 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-02-04 [patent_title] => 'LAMP DRIVING CIRCUIT, AND DETECTION CIRCUIT FOR DETECTING AN END-OF-LIFE CONDITION' [patent_app_type] => utility [patent_app_number] => 12/444711 [patent_app_country] => US [patent_app_date] => 2007-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3333 [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] => publications/A1/0026/20100026189.pdf [firstpage_image] =>[orig_patent_app_number] => 12444711 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/444711
LAMP DRIVING CIRCUIT, AND DETECTION CIRCUIT FOR DETECTING AN END-OF-LIFE CONDITION Oct 7, 2007 Abandoned
Array ( [id] => 4624907 [patent_doc_number] => 08004209 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-08-23 [patent_title] => 'Method for color transition for general illumination system' [patent_app_type] => utility [patent_app_number] => 12/443022 [patent_app_country] => US [patent_app_date] => 2007-10-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 8313 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 234 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/004/08004209.pdf [firstpage_image] =>[orig_patent_app_number] => 12443022 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/443022
Method for color transition for general illumination system Oct 1, 2007 Issued
Array ( [id] => 243740 [patent_doc_number] => 07589477 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-09-15 [patent_title] => 'Control method and ballast for run-up of metal halide lamp' [patent_app_type] => utility [patent_app_number] => 11/860759 [patent_app_country] => US [patent_app_date] => 2007-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2638 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/589/07589477.pdf [firstpage_image] =>[orig_patent_app_number] => 11860759 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/860759
Control method and ballast for run-up of metal halide lamp Sep 24, 2007 Issued
Array ( [id] => 4879993 [patent_doc_number] => 20080153376 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-06-26 [patent_title] => 'PROCESSING METHOD AND PROCESSING DEVICE OF CONDITIONING ELECTRON GUN' [patent_app_type] => utility [patent_app_number] => 11/860178 [patent_app_country] => US [patent_app_date] => 2007-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 6660 [patent_no_of_claims] => 13 [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] => publications/A1/0153/20080153376.pdf [firstpage_image] =>[orig_patent_app_number] => 11860178 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/860178
Processing method and processing device of conditioning electron gun Sep 23, 2007 Issued
Array ( [id] => 4715809 [patent_doc_number] => 20080238331 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-10-02 [patent_title] => 'ENERGY SAVING POWER SUPPLY CIRCUIT' [patent_app_type] => utility [patent_app_number] => 11/858125 [patent_app_country] => US [patent_app_date] => 2007-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1101 [patent_no_of_claims] => 15 [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] => publications/A1/0238/20080238331.pdf [firstpage_image] =>[orig_patent_app_number] => 11858125 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/858125
Energy saving power supply circuit Sep 19, 2007 Issued
Array ( [id] => 7555995 [patent_doc_number] => 08067898 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-11-29 [patent_title] => 'Power supply device for light elements and method for supplying power to light elements' [patent_app_type] => utility [patent_app_number] => 12/443852 [patent_app_country] => US [patent_app_date] => 2007-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 5753 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/067/08067898.pdf [firstpage_image] =>[orig_patent_app_number] => 12443852 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/443852
Power supply device for light elements and method for supplying power to light elements Sep 19, 2007 Issued
Array ( [id] => 4444028 [patent_doc_number] => 07928672 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-04-19 [patent_title] => 'Modulator for circular induction accelerator' [patent_app_type] => utility [patent_app_number] => 11/857908 [patent_app_country] => US [patent_app_date] => 2007-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 2730 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/928/07928672.pdf [firstpage_image] =>[orig_patent_app_number] => 11857908 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/857908
Modulator for circular induction accelerator Sep 18, 2007 Issued
Array ( [id] => 4919629 [patent_doc_number] => 20080067942 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-03-20 [patent_title] => 'LIGHT CONTROL CIRCUIT' [patent_app_type] => utility [patent_app_number] => 11/853157 [patent_app_country] => US [patent_app_date] => 2007-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3924 [patent_no_of_claims] => 3 [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] => publications/A1/0067/20080067942.pdf [firstpage_image] =>[orig_patent_app_number] => 11853157 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/853157
Light control circuit Sep 10, 2007 Issued
Array ( [id] => 5450220 [patent_doc_number] => 20090066256 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-03-12 [patent_title] => 'Solid Expellant Plasma Generator' [patent_app_type] => utility [patent_app_number] => 11/852007 [patent_app_country] => US [patent_app_date] => 2007-09-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 1938 [patent_no_of_claims] => 25 [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] => publications/A1/0066/20090066256.pdf [firstpage_image] =>[orig_patent_app_number] => 11852007 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/852007
Solid expellant plasma generator Sep 6, 2007 Issued
Array ( [id] => 4457895 [patent_doc_number] => 07893626 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-02-22 [patent_title] => 'Multi-color backlight control circuit and multi-color backlight control method' [patent_app_type] => utility [patent_app_number] => 11/851569 [patent_app_country] => US [patent_app_date] => 2007-09-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 16 [patent_no_of_words] => 4283 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/893/07893626.pdf [firstpage_image] =>[orig_patent_app_number] => 11851569 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/851569
Multi-color backlight control circuit and multi-color backlight control method Sep 6, 2007 Issued
Array ( [id] => 4702183 [patent_doc_number] => 20080061705 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-03-13 [patent_title] => 'CCFL INVERTER WITH SINGLE TRANSISTOR' [patent_app_type] => utility [patent_app_number] => 11/850336 [patent_app_country] => US [patent_app_date] => 2007-09-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 1459 [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] => publications/A1/0061/20080061705.pdf [firstpage_image] =>[orig_patent_app_number] => 11850336 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/850336
CCFL INVERTER WITH SINGLE TRANSISTOR Sep 4, 2007 Abandoned
Array ( [id] => 7801642 [patent_doc_number] => 08129917 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-03-06 [patent_title] => 'Light emitting device for AC operation' [patent_app_type] => utility [patent_app_number] => 12/442800 [patent_app_country] => US [patent_app_date] => 2007-09-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 4262 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/129/08129917.pdf [firstpage_image] =>[orig_patent_app_number] => 12442800 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/442800
Light emitting device for AC operation Sep 4, 2007 Issued
Array ( [id] => 6216777 [patent_doc_number] => 20100052557 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-03-04 [patent_title] => 'LAMP DRIVER CIRCUIT AND METHOD FOR DRIVING A DISCHARGE LAMP' [patent_app_type] => utility [patent_app_number] => 12/439697 [patent_app_country] => US [patent_app_date] => 2007-09-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4068 [patent_no_of_claims] => 8 [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] => publications/A1/0052/20100052557.pdf [firstpage_image] =>[orig_patent_app_number] => 12439697 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/439697
Lamp driver circuit and method for driving a discharge lamp Sep 3, 2007 Issued
Array ( [id] => 5320335 [patent_doc_number] => 20090058325 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-03-05 [patent_title] => 'GROUP CONTROL TYPE FLUORESCENT, LED AND/OR HALIDE LIGHTING CONTROL SYSTEM' [patent_app_type] => utility [patent_app_number] => 11/849295 [patent_app_country] => US [patent_app_date] => 2007-09-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2609 [patent_no_of_claims] => 13 [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] => publications/A1/0058/20090058325.pdf [firstpage_image] =>[orig_patent_app_number] => 11849295 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/849295
Group control type fluorescent, LED and/or halide lighting control system Sep 1, 2007 Issued
Array ( [id] => 4913401 [patent_doc_number] => 20080094000 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-04-24 [patent_title] => 'DEVICE AND METHOD FOR DRIVING LED' [patent_app_type] => utility [patent_app_number] => 11/847273 [patent_app_country] => US [patent_app_date] => 2007-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 7301 [patent_no_of_claims] => 13 [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] => publications/A1/0094/20080094000.pdf [firstpage_image] =>[orig_patent_app_number] => 11847273 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/847273
Device and method for driving LED Aug 28, 2007 Issued
Array ( [id] => 4518465 [patent_doc_number] => 07911153 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-03-22 [patent_title] => 'Electronic ballasts for lighting systems' [patent_app_type] => utility [patent_app_number] => 11/847227 [patent_app_country] => US [patent_app_date] => 2007-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 8189 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/911/07911153.pdf [firstpage_image] =>[orig_patent_app_number] => 11847227 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/847227
Electronic ballasts for lighting systems Aug 28, 2007 Issued
Array ( [id] => 4667538 [patent_doc_number] => 20080042598 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-02-21 [patent_title] => 'AUXILIARY LIGHTING CIRCUIT FOR HIGH INTENSITY DISCHARGE SYSTEM' [patent_app_type] => utility [patent_app_number] => 11/845889 [patent_app_country] => US [patent_app_date] => 2007-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3495 [patent_no_of_claims] => 11 [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] => publications/A1/0042/20080042598.pdf [firstpage_image] =>[orig_patent_app_number] => 11845889 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/845889
Auxiliary lighting circuit for high intensity discharge system Aug 27, 2007 Issued
Array ( [id] => 4731604 [patent_doc_number] => 20080048582 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-02-28 [patent_title] => 'PWM METHOD AND APPARATUS, AND LIGHT SOURCE DRIVEN THEREBY' [patent_app_type] => utility [patent_app_number] => 11/844770 [patent_app_country] => US [patent_app_date] => 2007-08-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 7699 [patent_no_of_claims] => 28 [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] => publications/A1/0048/20080048582.pdf [firstpage_image] =>[orig_patent_app_number] => 11844770 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/844770
PWM METHOD AND APPARATUS, AND LIGHT SOURCE DRIVEN THEREBY Aug 23, 2007 Abandoned
Array ( [id] => 4444026 [patent_doc_number] => 07928671 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2011-04-19 [patent_title] => 'Illumination intensity control' [patent_app_type] => utility [patent_app_number] => 11/843837 [patent_app_country] => US [patent_app_date] => 2007-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3724 [patent_no_of_claims] => 20 [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] => patents/07/928/07928671.pdf [firstpage_image] =>[orig_patent_app_number] => 11843837 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/843837
Illumination intensity control Aug 22, 2007 Issued
Array ( [id] => 4496671 [patent_doc_number] => 07956551 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2011-06-07 [patent_title] => 'Apparatus and method for discretionary adjustment of lumen output of light sources having lamp lumen depreciation characteristic compensation' [patent_app_type] => utility [patent_app_number] => 11/842853 [patent_app_country] => US [patent_app_date] => 2007-08-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 18 [patent_no_of_words] => 24522 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 38 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/956/07956551.pdf [firstpage_image] =>[orig_patent_app_number] => 11842853 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/842853
Apparatus and method for discretionary adjustment of lumen output of light sources having lamp lumen depreciation characteristic compensation Aug 20, 2007 Issued
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