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] => 6566365 [patent_doc_number] => 20100289840 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-11-18 [patent_title] => 'Light Emitting Device and Driving Method Thereof' [patent_app_type] => utility [patent_app_number] => 12/844041 [patent_app_country] => US [patent_app_date] => 2010-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 11759 [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] => publications/A1/0289/20100289840.pdf [firstpage_image] =>[orig_patent_app_number] => 12844041 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/844041
Light emitting device and driving method thereof Jul 26, 2010 Issued
Array ( [id] => 7667177 [patent_doc_number] => 20110316446 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-12-29 [patent_title] => 'POWER CONVERTER WITH COMPENSATION CIRCUIT FOR ADJUSTING OUTPUT CURRENT PROVIDED TO A CONSTANT LOAD' [patent_app_type] => utility [patent_app_number] => 12/824071 [patent_app_country] => US [patent_app_date] => 2010-06-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 6880 [patent_no_of_claims] => 29 [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] => 12824071 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/824071
Power converter with compensation circuit for adjusting output current provided to a constant load Jun 24, 2010 Issued
Array ( [id] => 8446906 [patent_doc_number] => 08288963 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-10-16 [patent_title] => 'LED driving circuit having error detection function' [patent_app_type] => utility [patent_app_number] => 12/823604 [patent_app_country] => US [patent_app_date] => 2010-06-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2659 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [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] => 12823604 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/823604
LED driving circuit having error detection function Jun 24, 2010 Issued
Array ( [id] => 6193463 [patent_doc_number] => 20110025217 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-02-03 [patent_title] => 'INRUSH CURRENT LIMITER FOR AN LED DRIVER' [patent_app_type] => utility [patent_app_number] => 12/822290 [patent_app_country] => US [patent_app_date] => 2010-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 8526 [patent_no_of_claims] => 21 [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/A1/0025/20110025217.pdf [firstpage_image] =>[orig_patent_app_number] => 12822290 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/822290
Inrush current limiter for an LED driver Jun 23, 2010 Issued
Array ( [id] => 6193464 [patent_doc_number] => 20110025218 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-02-03 [patent_title] => 'Mercury lamp and mercury lamp lighting apparatus' [patent_app_type] => utility [patent_app_number] => 12/801763 [patent_app_country] => US [patent_app_date] => 2010-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5291 [patent_no_of_claims] => 2 [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/A1/0025/20110025218.pdf [firstpage_image] =>[orig_patent_app_number] => 12801763 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/801763
Mercury lamp and mercury lamp lighting apparatus Jun 23, 2010 Issued
Array ( [id] => 6145984 [patent_doc_number] => 20110018442 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-01-27 [patent_title] => 'METHOD AND DEVICE FOR CONTROLLING THE LIGHT FUNCTIONS OF HEADLIGHTS OF A VEHICLE' [patent_app_type] => utility [patent_app_number] => 12/822976 [patent_app_country] => US [patent_app_date] => 2010-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1616 [patent_no_of_claims] => 19 [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/A1/0018/20110018442.pdf [firstpage_image] =>[orig_patent_app_number] => 12822976 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/822976
Method and device for controlling the light functions of headlights of a vehicle Jun 23, 2010 Issued
Array ( [id] => 8760838 [patent_doc_number] => 08421366 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-04-16 [patent_title] => 'Illumination device including LEDs and a switching power control system' [patent_app_type] => utility [patent_app_number] => 12/821769 [patent_app_country] => US [patent_app_date] => 2010-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 14 [patent_no_of_words] => 5644 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12821769 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/821769
Illumination device including LEDs and a switching power control system Jun 22, 2010 Issued
Array ( [id] => 9010126 [patent_doc_number] => 08525429 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-09-03 [patent_title] => 'Method for controlling gas discharge lamps' [patent_app_type] => utility [patent_app_number] => 12/820219 [patent_app_country] => US [patent_app_date] => 2010-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 3150 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12820219 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/820219
Method for controlling gas discharge lamps Jun 21, 2010 Issued
Array ( [id] => 7660494 [patent_doc_number] => 20110309763 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-12-22 [patent_title] => 'Alternating turn off timing of a fluorescent lamp starter unit' [patent_app_type] => utility [patent_app_number] => 12/803308 [patent_app_country] => US [patent_app_date] => 2010-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 7148 [patent_no_of_claims] => 21 [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/A1/0309/20110309763.pdf [firstpage_image] =>[orig_patent_app_number] => 12803308 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/803308
Alternating turn off timing of a fluorescent lamp starter unit Jun 21, 2010 Issued
Array ( [id] => 7660501 [patent_doc_number] => 20110309770 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-12-22 [patent_title] => 'LED LAMP HEAD WITH VARIABLE BRIGHTNESS' [patent_app_type] => utility [patent_app_number] => 12/820324 [patent_app_country] => US [patent_app_date] => 2010-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 1818 [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] => publications/A1/0309/20110309770.pdf [firstpage_image] =>[orig_patent_app_number] => 12820324 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/820324
LED lamp head with variable brightness Jun 21, 2010 Issued
Array ( [id] => 6574643 [patent_doc_number] => 20100320917 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-12-23 [patent_title] => 'ENERGY-SAVING STREET LIGHTING CONTROL SYSTEM' [patent_app_type] => utility [patent_app_number] => 12/819064 [patent_app_country] => US [patent_app_date] => 2010-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1103 [patent_no_of_claims] => 5 [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/A1/0320/20100320917.pdf [firstpage_image] =>[orig_patent_app_number] => 12819064 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/819064
Energy-saving street lighting control system Jun 17, 2010 Issued
Array ( [id] => 7660484 [patent_doc_number] => 20110309753 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-12-22 [patent_title] => 'MODULATED LIGHT DETECTION SYSTEM' [patent_app_type] => utility [patent_app_number] => 12/819168 [patent_app_country] => US [patent_app_date] => 2010-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4629 [patent_no_of_claims] => 28 [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/A1/0309/20110309753.pdf [firstpage_image] =>[orig_patent_app_number] => 12819168 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/819168
Modulated light detection system Jun 17, 2010 Issued
Array ( [id] => 8859237 [patent_doc_number] => 08461777 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2013-06-11 [patent_title] => 'Protection from short cathode condition in LED driver and method therefor' [patent_app_type] => utility [patent_app_number] => 12/818859 [patent_app_country] => US [patent_app_date] => 2010-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1981 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12818859 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/818859
Protection from short cathode condition in LED driver and method therefor Jun 17, 2010 Issued
Array ( [id] => 8802925 [patent_doc_number] => 08441203 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2013-05-14 [patent_title] => 'Dimming electronic ballast for true parallel lamp operation' [patent_app_type] => utility [patent_app_number] => 12/817739 [patent_app_country] => US [patent_app_date] => 2010-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4214 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12817739 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/817739
Dimming electronic ballast for true parallel lamp operation Jun 16, 2010 Issued
Array ( [id] => 9021129 [patent_doc_number] => 08531115 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-09-10 [patent_title] => 'Apparatus and method for bypassing failed LEDs in lighting arrays' [patent_app_type] => utility [patent_app_number] => 12/817361 [patent_app_country] => US [patent_app_date] => 2010-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 27 [patent_figures_cnt] => 39 [patent_no_of_words] => 10721 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 2 [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] => 12817361 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/817361
Apparatus and method for bypassing failed LEDs in lighting arrays Jun 16, 2010 Issued
Array ( [id] => 8572406 [patent_doc_number] => 08339056 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2012-12-25 [patent_title] => 'Lamp ballast with protection circuit for input arcing and line interruption' [patent_app_type] => utility [patent_app_number] => 12/817731 [patent_app_country] => US [patent_app_date] => 2010-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4161 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12817731 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/817731
Lamp ballast with protection circuit for input arcing and line interruption Jun 16, 2010 Issued
Array ( [id] => 8029431 [patent_doc_number] => 08143800 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-03-27 [patent_title] => 'Circuits and methods for driving a load with power factor correction function' [patent_app_type] => utility [patent_app_number] => 12/817388 [patent_app_country] => US [patent_app_date] => 2010-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 8386 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/143/08143800.pdf [firstpage_image] =>[orig_patent_app_number] => 12817388 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/817388
Circuits and methods for driving a load with power factor correction function Jun 16, 2010 Issued
Array ( [id] => 8538836 [patent_doc_number] => 08314559 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2012-11-20 [patent_title] => 'LED headlamp with a heated cover' [patent_app_type] => utility [patent_app_number] => 12/803008 [patent_app_country] => US [patent_app_date] => 2010-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2020 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12803008 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/803008
LED headlamp with a heated cover Jun 16, 2010 Issued
Array ( [id] => 6574829 [patent_doc_number] => 20100320937 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-12-23 [patent_title] => 'POWER SUPPLY CIRCUIT FOR POWERING LIGHT EMITTING DIODE' [patent_app_type] => utility [patent_app_number] => 12/817738 [patent_app_country] => US [patent_app_date] => 2010-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4486 [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] => publications/A1/0320/20100320937.pdf [firstpage_image] =>[orig_patent_app_number] => 12817738 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/817738
Power supply circuit for powering light emitting diode Jun 16, 2010 Issued
Array ( [id] => 8572414 [patent_doc_number] => 08339064 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-12-25 [patent_title] => 'LED lamp' [patent_app_type] => utility [patent_app_number] => 12/817205 [patent_app_country] => US [patent_app_date] => 2010-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1275 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12817205 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/817205
LED lamp Jun 16, 2010 Issued
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