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] => 3122743 [patent_doc_number] => 05450042 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-09-12 [patent_title] => 'Low distortion crystal oscillator circuit' [patent_app_type] => 1 [patent_app_number] => 8/257259 [patent_app_country] => US [patent_app_date] => 1994-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 3091 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/450/05450042.pdf [firstpage_image] =>[orig_patent_app_number] => 257259 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/257259
Low distortion crystal oscillator circuit Jun 7, 1994 Issued
Array ( [id] => 3423927 [patent_doc_number] => 05479076 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-12-26 [patent_title] => 'Current mode restart circuit for a dc arc lamp' [patent_app_type] => 1 [patent_app_number] => 8/255029 [patent_app_country] => US [patent_app_date] => 1994-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2519 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 193 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/479/05479076.pdf [firstpage_image] =>[orig_patent_app_number] => 255029 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/255029
Current mode restart circuit for a dc arc lamp Jun 6, 1994 Issued
Array ( [id] => 3495107 [patent_doc_number] => 05471176 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-11-28 [patent_title] => 'Glitchless frequency-adjustable ring oscillator' [patent_app_type] => 1 [patent_app_number] => 8/255162 [patent_app_country] => US [patent_app_date] => 1994-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 9575 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 262 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/471/05471176.pdf [firstpage_image] =>[orig_patent_app_number] => 255162 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/255162
Glitchless frequency-adjustable ring oscillator Jun 6, 1994 Issued
Array ( [id] => 3433607 [patent_doc_number] => 05463282 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-10-31 [patent_title] => 'Electronic supply for igniting and operating a high/pressure discharge lamp' [patent_app_type] => 1 [patent_app_number] => 8/250079 [patent_app_country] => US [patent_app_date] => 1994-05-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2324 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/463/05463282.pdf [firstpage_image] =>[orig_patent_app_number] => 250079 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/250079
Electronic supply for igniting and operating a high/pressure discharge lamp May 26, 1994 Issued
Array ( [id] => 3433622 [patent_doc_number] => 05463283 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-10-31 [patent_title] => 'Drive circuit for electroluminescent lamp' [patent_app_type] => 1 [patent_app_number] => 8/248299 [patent_app_country] => US [patent_app_date] => 1994-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 3158 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/463/05463283.pdf [firstpage_image] =>[orig_patent_app_number] => 248299 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/248299
Drive circuit for electroluminescent lamp May 23, 1994 Issued
08/238675 DIELECTRIC RESONATOR May 4, 1994 Abandoned
Array ( [id] => 3561305 [patent_doc_number] => 05500576 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1996-03-19 [patent_title] => 'Low height ballast for fluorescent lamps' [patent_app_type] => 1 [patent_app_number] => 8/227953 [patent_app_country] => US [patent_app_date] => 1994-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 5904 [patent_no_of_claims] => 13 [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/05/500/05500576.pdf [firstpage_image] =>[orig_patent_app_number] => 227953 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/227953
Low height ballast for fluorescent lamps Apr 14, 1994 Issued
Array ( [id] => 3571453 [patent_doc_number] => 05485061 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1996-01-16 [patent_title] => 'Discharge lamp lighting device capable of preventing a flicker due to arc movement' [patent_app_type] => 1 [patent_app_number] => 8/225985 [patent_app_country] => US [patent_app_date] => 1994-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 25 [patent_no_of_words] => 5655 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/485/05485061.pdf [firstpage_image] =>[orig_patent_app_number] => 225985 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/225985
Discharge lamp lighting device capable of preventing a flicker due to arc movement Apr 11, 1994 Issued
08/225701 ELECTRON GUN HAVING IMPROVED FOCUS AND CONVERGENCE, AND COLOR CATHODE- RAY TUBE AND IMAGE DISPLAY DEVICE Apr 10, 1994 Abandoned
Array ( [id] => 3524700 [patent_doc_number] => 05530322 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1996-06-25 [patent_title] => 'Multi-zone lighting control system' [patent_app_type] => 1 [patent_app_number] => 8/226194 [patent_app_country] => US [patent_app_date] => 1994-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 20 [patent_no_of_words] => 11013 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 285 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/530/05530322.pdf [firstpage_image] =>[orig_patent_app_number] => 226194 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/226194
Multi-zone lighting control system Apr 10, 1994 Issued
Array ( [id] => 3522170 [patent_doc_number] => 05506475 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1996-04-09 [patent_title] => 'Microwave electron cyclotron electron resonance (ECR) ion source with a large, uniformly distributed, axially symmetric, ECR plasma volume' [patent_app_type] => 1 [patent_app_number] => 8/216230 [patent_app_country] => US [patent_app_date] => 1994-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 17 [patent_no_of_words] => 5642 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/506/05506475.pdf [firstpage_image] =>[orig_patent_app_number] => 216230 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/216230
Microwave electron cyclotron electron resonance (ECR) ion source with a large, uniformly distributed, axially symmetric, ECR plasma volume Mar 21, 1994 Issued
Array ( [id] => 3534699 [patent_doc_number] => 05583396 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1996-12-10 [patent_title] => 'Optical device with metal halide discharge lamp having enhanced starting property' [patent_app_type] => 1 [patent_app_number] => 8/214193 [patent_app_country] => US [patent_app_date] => 1994-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3700 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/583/05583396.pdf [firstpage_image] =>[orig_patent_app_number] => 214193 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/214193
Optical device with metal halide discharge lamp having enhanced starting property Mar 16, 1994 Issued
08/213865 FLUORESCENT LAMP POWER SUPPLY AND CONTROL CIRCUIT FOR WIDE RANGE OPERATION Mar 15, 1994 Abandoned
Array ( [id] => 3484927 [patent_doc_number] => 05457360 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-10-10 [patent_title] => 'Dimming circuit for powering gas discharge lamps' [patent_app_type] => 1 [patent_app_number] => 8/209323 [patent_app_country] => US [patent_app_date] => 1994-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2346 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/457/05457360.pdf [firstpage_image] =>[orig_patent_app_number] => 209323 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/209323
Dimming circuit for powering gas discharge lamps Mar 9, 1994 Issued
Array ( [id] => 3117588 [patent_doc_number] => 05414383 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-05-09 [patent_title] => 'Four quadrant multiplier circuit and a receiver including such a circuit' [patent_app_type] => 1 [patent_app_number] => 8/202139 [patent_app_country] => US [patent_app_date] => 1994-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3337 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 227 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/414/05414383.pdf [firstpage_image] =>[orig_patent_app_number] => 202139 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/202139
Four quadrant multiplier circuit and a receiver including such a circuit Feb 23, 1994 Issued
Array ( [id] => 3463020 [patent_doc_number] => 05473280 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-12-05 [patent_title] => 'Modulation/demodulation method and system for realizing quadrature modulation/demodulation technique used in digital mobile radio system with complex signal processing' [patent_app_type] => 1 [patent_app_number] => 8/198574 [patent_app_country] => US [patent_app_date] => 1994-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 18 [patent_no_of_words] => 5683 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/473/05473280.pdf [firstpage_image] =>[orig_patent_app_number] => 198574 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/198574
Modulation/demodulation method and system for realizing quadrature modulation/demodulation technique used in digital mobile radio system with complex signal processing Feb 17, 1994 Issued
Array ( [id] => 3463104 [patent_doc_number] => 05473286 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-12-05 [patent_title] => 'Microwave generator circuit having oscillator and controller responsive to separate wavelengths' [patent_app_type] => 1 [patent_app_number] => 8/198831 [patent_app_country] => US [patent_app_date] => 1994-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 16 [patent_no_of_words] => 3163 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/473/05473286.pdf [firstpage_image] =>[orig_patent_app_number] => 198831 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/198831
Microwave generator circuit having oscillator and controller responsive to separate wavelengths Feb 17, 1994 Issued
Array ( [id] => 3433479 [patent_doc_number] => 05455541 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-10-03 [patent_title] => 'Frequency synthesizer having a frequency generator with N multipliers' [patent_app_type] => 1 [patent_app_number] => 8/197617 [patent_app_country] => US [patent_app_date] => 1994-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2941 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 46 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/455/05455541.pdf [firstpage_image] =>[orig_patent_app_number] => 197617 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/197617
Frequency synthesizer having a frequency generator with N multipliers Feb 16, 1994 Issued
Array ( [id] => 3130408 [patent_doc_number] => 05436589 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-07-25 [patent_title] => 'Demodulator for frequency shift keyed signals' [patent_app_type] => 1 [patent_app_number] => 8/189376 [patent_app_country] => US [patent_app_date] => 1994-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 2628 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/436/05436589.pdf [firstpage_image] =>[orig_patent_app_number] => 189376 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/189376
Demodulator for frequency shift keyed signals Jan 30, 1994 Issued
Array ( [id] => 3495888 [patent_doc_number] => 05440266 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-08-08 [patent_title] => 'Demodulating apparatus having quick pull-in synchronization facility at instantaneous disconnection of input signal' [patent_app_type] => 1 [patent_app_number] => 8/187698 [patent_app_country] => US [patent_app_date] => 1994-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 23 [patent_no_of_words] => 7124 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 311 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/440/05440266.pdf [firstpage_image] =>[orig_patent_app_number] => 187698 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/187698
Demodulating apparatus having quick pull-in synchronization facility at instantaneous disconnection of input signal Jan 26, 1994 Issued
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