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] => 5524437 [patent_doc_number] => 20090194513 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-08-06 [patent_title] => 'Method and apparatus for operating traveling spark igniter at high pressure' [patent_app_type] => utility [patent_app_number] => 12/313927 [patent_app_country] => US [patent_app_date] => 2008-11-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 10542 [patent_no_of_claims] => 1 [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/A1/0194/20090194513.pdf [firstpage_image] =>[orig_patent_app_number] => 12313927 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/313927
Method and apparatus for operating traveling spark igniter at high pressure Nov 25, 2008 Issued
Array ( [id] => 5420119 [patent_doc_number] => 20090146574 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-11 [patent_title] => 'Safety circuit for electro-luminescent lamp ballast' [patent_app_type] => utility [patent_app_number] => 12/313669 [patent_app_country] => US [patent_app_date] => 2008-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1425 [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] => publications/A1/0146/20090146574.pdf [firstpage_image] =>[orig_patent_app_number] => 12313669 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/313669
Safety circuit for electro-luminescent lamp ballast Nov 19, 2008 Issued
Array ( [id] => 4504100 [patent_doc_number] => 07919923 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-04-05 [patent_title] => 'Plasma lamp with dielectric waveguide' [patent_app_type] => utility [patent_app_number] => 12/251718 [patent_app_country] => US [patent_app_date] => 2008-10-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 13 [patent_no_of_words] => 5780 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/919/07919923.pdf [firstpage_image] =>[orig_patent_app_number] => 12251718 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/251718
Plasma lamp with dielectric waveguide Oct 14, 2008 Issued
Array ( [id] => 4640137 [patent_doc_number] => 08018165 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-09-13 [patent_title] => 'End-of-lamp life detection circuit' [patent_app_type] => utility [patent_app_number] => 12/250690 [patent_app_country] => US [patent_app_date] => 2008-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1080 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/018/08018165.pdf [firstpage_image] =>[orig_patent_app_number] => 12250690 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/250690
End-of-lamp life detection circuit Oct 13, 2008 Issued
Array ( [id] => 5353326 [patent_doc_number] => 20090184670 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-07-23 [patent_title] => 'WAVEFORM MANAGEMENT SYSTEMS AND METHODS FOR BALLASTS' [patent_app_type] => utility [patent_app_number] => 12/250022 [patent_app_country] => US [patent_app_date] => 2008-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2504 [patent_no_of_claims] => 18 [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/A1/0184/20090184670.pdf [firstpage_image] =>[orig_patent_app_number] => 12250022 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/250022
Waveform management systems and methods for ballasts Oct 12, 2008 Issued
Array ( [id] => 4466078 [patent_doc_number] => 07936130 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-05-03 [patent_title] => 'Discharge lamp lighting apparatus' [patent_app_type] => utility [patent_app_number] => 12/249335 [patent_app_country] => US [patent_app_date] => 2008-10-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4605 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/936/07936130.pdf [firstpage_image] =>[orig_patent_app_number] => 12249335 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/249335
Discharge lamp lighting apparatus Oct 9, 2008 Issued
Array ( [id] => 5282705 [patent_doc_number] => 20090096379 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-04-16 [patent_title] => 'POWER SUPPLY APPARATUS AND HIGH-FREQUENCY CIRCUIT SYSTEM' [patent_app_type] => utility [patent_app_number] => 12/249572 [patent_app_country] => US [patent_app_date] => 2008-10-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 5397 [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/A1/0096/20090096379.pdf [firstpage_image] =>[orig_patent_app_number] => 12249572 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/249572
Power supply apparatus and high-frequency circuit system Oct 9, 2008 Issued
Array ( [id] => 6460884 [patent_doc_number] => 20100090605 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-04-15 [patent_title] => 'HYBRID LIGHTING DEVICE' [patent_app_type] => utility [patent_app_number] => 12/248693 [patent_app_country] => US [patent_app_date] => 2008-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 28 [patent_figures_cnt] => 28 [patent_no_of_words] => 4022 [patent_no_of_claims] => 17 [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/A1/0090/20100090605.pdf [firstpage_image] =>[orig_patent_app_number] => 12248693 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/248693
Hybrid lighting device Oct 8, 2008 Issued
Array ( [id] => 4527605 [patent_doc_number] => 07952290 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-05-31 [patent_title] => 'Current-regulated light emitting device for vehicle use' [patent_app_type] => utility [patent_app_number] => 12/248812 [patent_app_country] => US [patent_app_date] => 2008-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2824 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 239 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/952/07952290.pdf [firstpage_image] =>[orig_patent_app_number] => 12248812 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/248812
Current-regulated light emitting device for vehicle use Oct 8, 2008 Issued
Array ( [id] => 5282717 [patent_doc_number] => 20090096391 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-04-16 [patent_title] => 'Control of Delivery of Current Through One or More Discharge Lamps' [patent_app_type] => utility [patent_app_number] => 12/248824 [patent_app_country] => US [patent_app_date] => 2008-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 9856 [patent_no_of_claims] => 18 [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/A1/0096/20090096391.pdf [firstpage_image] =>[orig_patent_app_number] => 12248824 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/248824
Control of delivery of current through one or more discharge lamps Oct 8, 2008 Issued
Array ( [id] => 4527674 [patent_doc_number] => 07952299 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-05-31 [patent_title] => 'Control circuit and method for self-exciting capacitor charging circuit' [patent_app_type] => utility [patent_app_number] => 12/248279 [patent_app_country] => US [patent_app_date] => 2008-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5472 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/952/07952299.pdf [firstpage_image] =>[orig_patent_app_number] => 12248279 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/248279
Control circuit and method for self-exciting capacitor charging circuit Oct 8, 2008 Issued
Array ( [id] => 5282704 [patent_doc_number] => 20090096378 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-04-16 [patent_title] => 'Traveling-Wave Tube 2D Slow Wave Circuit' [patent_app_type] => utility [patent_app_number] => 12/248019 [patent_app_country] => US [patent_app_date] => 2008-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4100 [patent_no_of_claims] => 7 [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/A1/0096/20090096378.pdf [firstpage_image] =>[orig_patent_app_number] => 12248019 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/248019
Traveling-wave tube 2D slow wave circuit Oct 7, 2008 Issued
Array ( [id] => 5462045 [patent_doc_number] => 20090322245 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-12-31 [patent_title] => 'DISCHARGE LAMP LIGHTING APPARATUS' [patent_app_type] => utility [patent_app_number] => 12/247444 [patent_app_country] => US [patent_app_date] => 2008-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4685 [patent_no_of_claims] => 3 [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/A1/0322/20090322245.pdf [firstpage_image] =>[orig_patent_app_number] => 12247444 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/247444
DISCHARGE LAMP LIGHTING APPARATUS Oct 7, 2008 Abandoned
Array ( [id] => 5439635 [patent_doc_number] => 20090091274 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-04-09 [patent_title] => 'METHOD FOR ACHIEVING HIGH DUTY CYCLE OPERATION AND MULTIPLE BEAMS WITH WEAK FOCUSING AND FIXED FIELD ALTERNATING GRADIENT INDUCTION ACCELERATORS' [patent_app_type] => utility [patent_app_number] => 12/247516 [patent_app_country] => US [patent_app_date] => 2008-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3239 [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/A1/0091/20090091274.pdf [firstpage_image] =>[orig_patent_app_number] => 12247516 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/247516
METHOD FOR ACHIEVING HIGH DUTY CYCLE OPERATION AND MULTIPLE BEAMS WITH WEAK FOCUSING AND FIXED FIELD ALTERNATING GRADIENT INDUCTION ACCELERATORS Oct 7, 2008 Abandoned
Array ( [id] => 221462 [patent_doc_number] => 07609008 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2009-10-27 [patent_title] => 'Method and circuit for controlling an LED' [patent_app_type] => utility [patent_app_number] => 12/246052 [patent_app_country] => US [patent_app_date] => 2008-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2904 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 352 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/609/07609008.pdf [firstpage_image] =>[orig_patent_app_number] => 12246052 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/246052
Method and circuit for controlling an LED Oct 5, 2008 Issued
Array ( [id] => 8910144 [patent_doc_number] => 08482212 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2013-07-09 [patent_title] => 'Light sources incorporating light emitting diodes' [patent_app_type] => utility [patent_app_number] => 12/242033 [patent_app_country] => US [patent_app_date] => 2008-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 15 [patent_no_of_words] => 4788 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12242033 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/242033
Light sources incorporating light emitting diodes Sep 29, 2008 Issued
Array ( [id] => 8162514 [patent_doc_number] => 08172834 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-05-08 [patent_title] => 'Portable handheld illumination system' [patent_app_type] => utility [patent_app_number] => 12/237110 [patent_app_country] => US [patent_app_date] => 2008-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 5749 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/172/08172834.pdf [firstpage_image] =>[orig_patent_app_number] => 12237110 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/237110
Portable handheld illumination system Sep 23, 2008 Issued
Array ( [id] => 7968155 [patent_doc_number] => 07940007 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-05-10 [patent_title] => 'Plasma lamp with dielectric waveguide integrated with transparent bulb' [patent_app_type] => utility [patent_app_number] => 12/209042 [patent_app_country] => US [patent_app_date] => 2008-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 27 [patent_figures_cnt] => 34 [patent_no_of_words] => 11865 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/940/07940007.pdf [firstpage_image] =>[orig_patent_app_number] => 12209042 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/209042
Plasma lamp with dielectric waveguide integrated with transparent bulb Sep 10, 2008 Issued
Array ( [id] => 5346532 [patent_doc_number] => 20090001893 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-01-01 [patent_title] => 'Method and system for luminance characterization' [patent_app_type] => utility [patent_app_number] => 12/231478 [patent_app_country] => US [patent_app_date] => 2008-09-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 9749 [patent_no_of_claims] => 17 [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/A1/0001/20090001893.pdf [firstpage_image] =>[orig_patent_app_number] => 12231478 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/231478
Method and system for luminance characterization Sep 1, 2008 Issued
Array ( [id] => 5444520 [patent_doc_number] => 20090045746 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-02-19 [patent_title] => 'Particle Accelerator and Methods Therefor' [patent_app_type] => utility [patent_app_number] => 12/197176 [patent_app_country] => US [patent_app_date] => 2008-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 4389 [patent_no_of_claims] => 10 [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/A1/0045/20090045746.pdf [firstpage_image] =>[orig_patent_app_number] => 12197176 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/197176
Particle Accelerator and Methods Therefor Aug 21, 2008 Abandoned
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