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] => 5525104 [patent_doc_number] => 20090195180 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-08-06 [patent_title] => 'LED DRIVER CIRCUITS AND METHODS' [patent_app_type] => utility [patent_app_number] => 12/024180 [patent_app_country] => US [patent_app_date] => 2008-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2290 [patent_no_of_claims] => 19 [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/A1/0195/20090195180.pdf [firstpage_image] =>[orig_patent_app_number] => 12024180 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/024180
LED driver circuits and methods Jan 31, 2008 Issued
Array ( [id] => 93363 [patent_doc_number] => 07733035 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-06-08 [patent_title] => 'Electronic power supply device for light-emitting diode' [patent_app_type] => utility [patent_app_number] => 12/024124 [patent_app_country] => US [patent_app_date] => 2008-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 4391 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 360 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/733/07733035.pdf [firstpage_image] =>[orig_patent_app_number] => 12024124 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/024124
Electronic power supply device for light-emitting diode Jan 31, 2008 Issued
Array ( [id] => 4897209 [patent_doc_number] => 20080116822 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-05-22 [patent_title] => 'High Voltage Transformer for Backlight Power Source' [patent_app_type] => utility [patent_app_number] => 12/022991 [patent_app_country] => US [patent_app_date] => 2008-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 3066 [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] => publications/A1/0116/20080116822.pdf [firstpage_image] =>[orig_patent_app_number] => 12022991 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/022991
High voltage transformer for backlight power source Jan 29, 2008 Issued
Array ( [id] => 5353311 [patent_doc_number] => 20090184655 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-07-23 [patent_title] => 'POWER MANAGEMENT SYSTEM FOR LIGHT EMITTING DIODES' [patent_app_type] => utility [patent_app_number] => 12/017474 [patent_app_country] => US [patent_app_date] => 2008-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3987 [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/A1/0184/20090184655.pdf [firstpage_image] =>[orig_patent_app_number] => 12017474 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/017474
POWER MANAGEMENT SYSTEM FOR LIGHT EMITTING DIODES Jan 21, 2008 Abandoned
Array ( [id] => 7530918 [patent_doc_number] => 07843141 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2010-11-30 [patent_title] => 'Low cost step dimming interface for an electronic ballast' [patent_app_type] => utility [patent_app_number] => 12/017750 [patent_app_country] => US [patent_app_date] => 2008-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4170 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/843/07843141.pdf [firstpage_image] =>[orig_patent_app_number] => 12017750 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/017750
Low cost step dimming interface for an electronic ballast Jan 21, 2008 Issued
Array ( [id] => 4624915 [patent_doc_number] => 08004217 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-08-23 [patent_title] => 'Electronic ballast with integral shutdown timer' [patent_app_type] => utility [patent_app_number] => 12/013247 [patent_app_country] => US [patent_app_date] => 2008-01-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 16 [patent_no_of_words] => 4094 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 100 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/004/08004217.pdf [firstpage_image] =>[orig_patent_app_number] => 12013247 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/013247
Electronic ballast with integral shutdown timer Jan 10, 2008 Issued
Array ( [id] => 4451720 [patent_doc_number] => 07965045 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-06-21 [patent_title] => 'Power supply circuit for display unit and display unit' [patent_app_type] => utility [patent_app_number] => 12/007438 [patent_app_country] => US [patent_app_date] => 2008-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 6018 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 58 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/965/07965045.pdf [firstpage_image] =>[orig_patent_app_number] => 12007438 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/007438
Power supply circuit for display unit and display unit Jan 9, 2008 Issued
Array ( [id] => 5432612 [patent_doc_number] => 20090167198 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-07-02 [patent_title] => 'Light string having shunt circuitry arranged on husk of light bulb assembly' [patent_app_type] => utility [patent_app_number] => 12/003830 [patent_app_country] => US [patent_app_date] => 2008-01-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 1527 [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/A1/0167/20090167198.pdf [firstpage_image] =>[orig_patent_app_number] => 12003830 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/003830
Light string having shunt circuitry arranged on husk of light bulb assembly Jan 1, 2008 Abandoned
Array ( [id] => 5432600 [patent_doc_number] => 20090167186 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-07-02 [patent_title] => 'LEDs tricolor power signal' [patent_app_type] => utility [patent_app_number] => 12/006143 [patent_app_country] => US [patent_app_date] => 2007-12-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 4726 [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/A1/0167/20090167186.pdf [firstpage_image] =>[orig_patent_app_number] => 12006143 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/006143
LEDs tricolor power signal Dec 30, 2007 Issued
Array ( [id] => 5499661 [patent_doc_number] => 20090160349 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-25 [patent_title] => 'Electronic stabilizer circuit for suppressing startup instabilities in cold cathode fluorescent lamps' [patent_app_type] => utility [patent_app_number] => 12/004528 [patent_app_country] => US [patent_app_date] => 2007-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3288 [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] => publications/A1/0160/20090160349.pdf [firstpage_image] =>[orig_patent_app_number] => 12004528 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/004528
Electronic stabilizer circuit for suppressing startup instabilities in cold cathode fluorescent lamps Dec 20, 2007 Issued
Array ( [id] => 191412 [patent_doc_number] => 07642726 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-01-05 [patent_title] => 'Power supply apparatus, backlight assembly and liquid crystal display apparatus having the same' [patent_app_type] => utility [patent_app_number] => 11/958013 [patent_app_country] => US [patent_app_date] => 2007-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 7873 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/642/07642726.pdf [firstpage_image] =>[orig_patent_app_number] => 11958013 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/958013
Power supply apparatus, backlight assembly and liquid crystal display apparatus having the same Dec 16, 2007 Issued
Array ( [id] => 6425381 [patent_doc_number] => 20100102759 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-04-29 [patent_title] => 'LIGHT SOURCE AND METHOD FOR OPERATING A LIGHTING SYSTEM' [patent_app_type] => utility [patent_app_number] => 12/518643 [patent_app_country] => US [patent_app_date] => 2007-12-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 6004 [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/A1/0102/20100102759.pdf [firstpage_image] =>[orig_patent_app_number] => 12518643 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/518643
Light source and method for operating a lighting system Dec 11, 2007 Issued
Array ( [id] => 5420127 [patent_doc_number] => 20090146582 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-11 [patent_title] => 'Colour rendering in compact fluorescent lamps' [patent_app_type] => utility [patent_app_number] => 11/952551 [patent_app_country] => US [patent_app_date] => 2007-12-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5641 [patent_no_of_claims] => 29 [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/A1/0146/20090146582.pdf [firstpage_image] =>[orig_patent_app_number] => 11952551 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/952551
Colour rendering in compact fluorescent lamps Dec 6, 2007 Abandoned
Array ( [id] => 5420131 [patent_doc_number] => 20090146586 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-11 [patent_title] => 'Power supply for external electrode fluorescent lamps' [patent_app_type] => utility [patent_app_number] => 11/999568 [patent_app_country] => US [patent_app_date] => 2007-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3005 [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] => publications/A1/0146/20090146586.pdf [firstpage_image] =>[orig_patent_app_number] => 11999568 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/999568
Power supply for external electrode fluorescent lamps Dec 5, 2007 Issued
Array ( [id] => 5421050 [patent_doc_number] => 20090147505 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-11 [patent_title] => 'Rechargeable portable Light with Multiple Charging Systems' [patent_app_type] => utility [patent_app_number] => 11/950996 [patent_app_country] => US [patent_app_date] => 2007-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 8946 [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/A1/0147/20090147505.pdf [firstpage_image] =>[orig_patent_app_number] => 11950996 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/950996
Rechargeable portable Light with Multiple Charging Systems Dec 4, 2007 Abandoned
Array ( [id] => 134100 [patent_doc_number] => 07696702 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-04-13 [patent_title] => 'Transformer, backlight apparatus, and display apparatus' [patent_app_type] => utility [patent_app_number] => 11/999126 [patent_app_country] => US [patent_app_date] => 2007-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 20 [patent_no_of_words] => 14820 [patent_no_of_claims] => 11 [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] => patents/07/696/07696702.pdf [firstpage_image] =>[orig_patent_app_number] => 11999126 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/999126
Transformer, backlight apparatus, and display apparatus Dec 3, 2007 Issued
Array ( [id] => 4837810 [patent_doc_number] => 20080278295 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-11-13 [patent_title] => 'SYSTEM AND METHOD FOR POWER LINE CARRIER COMMUNICATION USING HIGH FREQUENCY TONE BURSTS' [patent_app_type] => utility [patent_app_number] => 11/945870 [patent_app_country] => US [patent_app_date] => 2007-11-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3903 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0278/20080278295.pdf [firstpage_image] =>[orig_patent_app_number] => 11945870 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/945870
System and method for power line carrier communication using high frequency tone bursts Nov 26, 2007 Issued
Array ( [id] => 4691400 [patent_doc_number] => 20080084170 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-04-10 [patent_title] => 'Fluorescent lamp assembly having multiple settings and method' [patent_app_type] => utility [patent_app_number] => 11/986460 [patent_app_country] => US [patent_app_date] => 2007-11-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 5461 [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] => publications/A1/0084/20080084170.pdf [firstpage_image] =>[orig_patent_app_number] => 11986460 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/986460
Fluorescent lamp assembly having multiple settings and method Nov 20, 2007 Issued
Array ( [id] => 4877055 [patent_doc_number] => 20080150438 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-06-26 [patent_title] => 'PLASMA DISPLAY AND DRIVING METHOD THEREOF' [patent_app_type] => utility [patent_app_number] => 11/938889 [patent_app_country] => US [patent_app_date] => 2007-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6618 [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/A1/0150/20080150438.pdf [firstpage_image] =>[orig_patent_app_number] => 11938889 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/938889
PLASMA DISPLAY AND DRIVING METHOD THEREOF Nov 12, 2007 Abandoned
Array ( [id] => 6466791 [patent_doc_number] => 20100007284 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-01-14 [patent_title] => 'DEVICE FOR DRIVING A GAS DISCHARGE LAMP' [patent_app_type] => utility [patent_app_number] => 12/445466 [patent_app_country] => US [patent_app_date] => 2007-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 5232 [patent_no_of_claims] => 12 [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/A1/0007/20100007284.pdf [firstpage_image] =>[orig_patent_app_number] => 12445466 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/445466
DEVICE FOR DRIVING A GAS DISCHARGE LAMP Oct 10, 2007 Abandoned
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