Search

David E. Choi

Examiner (ID: 18726, Phone: (571)270-3780 , Office: P/2174 )

Most Active Art Unit
2174
Art Unit(s)
2174, 2173, 2148
Total Applications
766
Issued Applications
584
Pending Applications
52
Abandoned Applications
150

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18224483 [patent_doc_number] => 20230063477 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-02 [patent_title] => INDICATOR CONTROL SYSTEM [patent_app_type] => utility [patent_app_number] => 17/817105 [patent_app_country] => US [patent_app_date] => 2022-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5613 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17817105 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/817105
Indicator control system Aug 2, 2022 Issued
Array ( [id] => 19095393 [patent_doc_number] => 11956875 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-04-09 [patent_title] => DC power management system [patent_app_type] => utility [patent_app_number] => 17/817309 [patent_app_country] => US [patent_app_date] => 2022-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 23 [patent_no_of_words] => 6581 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [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] => 17817309 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/817309
DC power management system Aug 2, 2022 Issued
Array ( [id] => 18167982 [patent_doc_number] => 20230034590 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-02 [patent_title] => CONTROL CIRCUIT FOR CONSTANT-CURRENT DRIVE CIRCUIT AND CONSTANT-CURRENT DRIVE CIRCUIT [patent_app_type] => utility [patent_app_number] => 17/875140 [patent_app_country] => US [patent_app_date] => 2022-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7817 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 196 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17875140 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/875140
Control circuit for constant-current drive circuit and constant-current drive circuit Jul 26, 2022 Issued
Array ( [id] => 19428118 [patent_doc_number] => 12087550 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-09-10 [patent_title] => Device for measuring density of plasma, plasma processing system, and semiconductor device manufacturing method using the same [patent_app_type] => utility [patent_app_number] => 17/874475 [patent_app_country] => US [patent_app_date] => 2022-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5167 [patent_no_of_claims] => 19 [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] =>[firstpage_image] =>[orig_patent_app_number] => 17874475 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/874475
Device for measuring density of plasma, plasma processing system, and semiconductor device manufacturing method using the same Jul 26, 2022 Issued
Array ( [id] => 18390723 [patent_doc_number] => 20230158941 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-25 [patent_title] => APPARATUS AND METHOD FOR CONTROLLING BEAM PATTERN [patent_app_type] => utility [patent_app_number] => 17/869969 [patent_app_country] => US [patent_app_date] => 2022-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5203 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 34 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17869969 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/869969
Apparatus and method for controlling beam pattern Jul 20, 2022 Issued
Array ( [id] => 19169819 [patent_doc_number] => 11985744 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-05-14 [patent_title] => LED driver suitable for low-voltage operation and method therefor [patent_app_type] => utility [patent_app_number] => 17/813405 [patent_app_country] => US [patent_app_date] => 2022-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3517 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17813405 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/813405
LED driver suitable for low-voltage operation and method therefor Jul 18, 2022 Issued
Array ( [id] => 17987940 [patent_doc_number] => 20220353977 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-03 [patent_title] => Method for setting up and operating a network of luminaires [patent_app_type] => utility [patent_app_number] => 17/813250 [patent_app_country] => US [patent_app_date] => 2022-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8635 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17813250 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/813250
Method for setting up and operating a network of luminaires Jul 17, 2022 Issued
Array ( [id] => 19592604 [patent_doc_number] => 12150417 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-26 [patent_title] => Systems and methods for managing undesired effects produced by horticultural lighting sources in an electrical grid [patent_app_type] => utility [patent_app_number] => 17/865830 [patent_app_country] => US [patent_app_date] => 2022-07-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 6620 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17865830 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/865830
Systems and methods for managing undesired effects produced by horticultural lighting sources in an electrical grid Jul 14, 2022 Issued
Array ( [id] => 17982096 [patent_doc_number] => 20220348132 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-03 [patent_title] => LIGHT EMITTING DEVICE [patent_app_type] => utility [patent_app_number] => 17/865997 [patent_app_country] => US [patent_app_date] => 2022-07-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16731 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 518 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17865997 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/865997
Light emitting device Jul 14, 2022 Issued
Array ( [id] => 20161273 [patent_doc_number] => 12387906 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-12 [patent_title] => Coil structure for generating plasma and semiconductor equipment [patent_app_type] => utility [patent_app_number] => 18/577036 [patent_app_country] => US [patent_app_date] => 2022-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 21 [patent_no_of_words] => 5164 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 215 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18577036 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/577036
Coil structure for generating plasma and semiconductor equipment Jul 5, 2022 Issued
Array ( [id] => 19105314 [patent_doc_number] => 11958394 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-16 [patent_title] => Lighting control system [patent_app_type] => utility [patent_app_number] => 17/810932 [patent_app_country] => US [patent_app_date] => 2022-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 3718 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17810932 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/810932
Lighting control system Jul 5, 2022 Issued
Array ( [id] => 18381791 [patent_doc_number] => 20230156882 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-18 [patent_title] => Control a Dimming Level of an Illumination Load by a Dimmer Device [patent_app_type] => utility [patent_app_number] => 17/848796 [patent_app_country] => US [patent_app_date] => 2022-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6109 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17848796 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/848796
Control a dimming level of an illumination load by a dimmer device Jun 23, 2022 Issued
Array ( [id] => 18126782 [patent_doc_number] => 20230012403 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-12 [patent_title] => MULTI-CHANNEL LED DRIVER WITH INTEGRATED LEDS HAVING A MULTILAYER STRUCTURE [patent_app_type] => utility [patent_app_number] => 17/849492 [patent_app_country] => US [patent_app_date] => 2022-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6373 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17849492 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/849492
Multi-channel LED driver with integrated LEDs having a multilayer structure Jun 23, 2022 Issued
Array ( [id] => 19883698 [patent_doc_number] => 12269390 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-04-08 [patent_title] => Tail light converter system [patent_app_type] => utility [patent_app_number] => 17/849160 [patent_app_country] => US [patent_app_date] => 2022-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4121 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 249 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17849160 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/849160
Tail light converter system Jun 23, 2022 Issued
Array ( [id] => 17915474 [patent_doc_number] => 20220317870 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-06 [patent_title] => VEHICLE LIGHTING DEVICE [patent_app_type] => utility [patent_app_number] => 17/846940 [patent_app_country] => US [patent_app_date] => 2022-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6878 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17846940 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/846940
Vehicle lighting device Jun 21, 2022 Issued
Array ( [id] => 18685539 [patent_doc_number] => 11781264 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-10-10 [patent_title] => Laundry treating apparatus [patent_app_type] => utility [patent_app_number] => 17/841421 [patent_app_country] => US [patent_app_date] => 2022-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 7734 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 219 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17841421 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/841421
Laundry treating apparatus Jun 14, 2022 Issued
Array ( [id] => 19437776 [patent_doc_number] => 20240306274 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-12 [patent_title] => HF AC DRIVING A STRING OF ANTIPARALLEL LASER DIODES AND LEDS [patent_app_type] => utility [patent_app_number] => 18/572360 [patent_app_country] => US [patent_app_date] => 2022-06-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7078 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18572360 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/572360
HF AC driving a string of antiparallel laser diodes and LEDS Jun 12, 2022 Issued
Array ( [id] => 19017973 [patent_doc_number] => 11924934 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-05 [patent_title] => Dynamic filtering of dimmable LED drivers [patent_app_type] => utility [patent_app_number] => 17/834776 [patent_app_country] => US [patent_app_date] => 2022-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5722 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17834776 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/834776
Dynamic filtering of dimmable LED drivers Jun 6, 2022 Issued
Array ( [id] => 18192389 [patent_doc_number] => 20230045908 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-16 [patent_title] => ELECTRICAL WIRING DEVICE WITH WIRING DETECTION AND CORRECTION [patent_app_type] => utility [patent_app_number] => 17/828156 [patent_app_country] => US [patent_app_date] => 2022-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13301 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17828156 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/828156
Electrical wiring device with wiring detection and correction May 30, 2022 Issued
Array ( [id] => 19349125 [patent_doc_number] => 20240258089 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-01 [patent_title] => Electron Multiplier Having Improved Voltage Stabilisation [patent_app_type] => utility [patent_app_number] => 18/564743 [patent_app_country] => US [patent_app_date] => 2022-05-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6259 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -29 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18564743 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/564743
Electron Multiplier Having Improved Voltage Stabilisation May 25, 2022 Abandoned
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