Search

David E. Choi

Examiner (ID: 18884, Phone: (571)270-3780 , Office: P/2174 )

Most Active Art Unit
2174
Art Unit(s)
2174, 2173, 2148
Total Applications
778
Issued Applications
591
Pending Applications
55
Abandoned Applications
150

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17398663 [patent_doc_number] => 20220040753 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-10 [patent_title] => COOLING WATER CHANNEL FOR CASTING MOLD [patent_app_type] => utility [patent_app_number] => 17/367502 [patent_app_country] => US [patent_app_date] => 2021-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4374 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17367502 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/367502
Cooling water channel for casting mold Jul 4, 2021 Issued
Array ( [id] => 17298421 [patent_doc_number] => 20210394260 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-23 [patent_title] => Die-Casting Machine and Operating Method [patent_app_type] => utility [patent_app_number] => 17/352935 [patent_app_country] => US [patent_app_date] => 2021-06-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14746 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 214 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17352935 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/352935
Die-casting machine and operating method Jun 20, 2021 Issued
Array ( [id] => 18653530 [patent_doc_number] => 20230299371 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-21 [patent_title] => Method for the prelithiation of a silicon-containing anode in a lithium-ion battery [patent_app_type] => utility [patent_app_number] => 18/018588 [patent_app_country] => US [patent_app_date] => 2021-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7380 [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] => 18018588 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/018588
Method for the prelithiation of a silicon-containing anode in a lithium-ion battery Jun 16, 2021 Pending
Array ( [id] => 17155309 [patent_doc_number] => 20210316360 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-10-14 [patent_title] => MANUFACTURING PROCESS OF CAMSHAFT WITH FUNCTIONAL COMPONENT AS INSERT OF ASSEMBLY AND THE CAMSHAFT OBTAINED WITH IT [patent_app_type] => utility [patent_app_number] => 17/350886 [patent_app_country] => US [patent_app_date] => 2021-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3205 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [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] => 17350886 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/350886
MANUFACTURING PROCESS OF CAMSHAFT WITH FUNCTIONAL COMPONENT AS INSERT OF ASSEMBLY AND THE CAMSHAFT OBTAINED WITH IT Jun 16, 2021 Abandoned
Array ( [id] => 18523471 [patent_doc_number] => 20230234126 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-27 [patent_title] => ACTUATOR FOR A CASTING MOLD FOR PRODUCING METAL COMPONENTS [patent_app_type] => utility [patent_app_number] => 18/010859 [patent_app_country] => US [patent_app_date] => 2021-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6887 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18010859 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/010859
Actuator for a casting mold for producing metal components Jun 14, 2021 Issued
Array ( [id] => 17481169 [patent_doc_number] => 20220088673 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-24 [patent_title] => PLUNGER TIP AND SLIDING METHOD [patent_app_type] => utility [patent_app_number] => 17/347931 [patent_app_country] => US [patent_app_date] => 2021-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3764 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17347931 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/347931
PLUNGER TIP AND SLIDING METHOD Jun 14, 2021 Abandoned
Array ( [id] => 18450200 [patent_doc_number] => 20230191477 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-22 [patent_title] => METHOD AND ARRANGEMENT FOR CRACK REMOVAL [patent_app_type] => utility [patent_app_number] => 18/001895 [patent_app_country] => US [patent_app_date] => 2021-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14160 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18001895 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/001895
Method and arrangement for crack removal Jun 13, 2021 Issued
Array ( [id] => 17266771 [patent_doc_number] => 11192176 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2021-12-07 [patent_title] => Method for improving center segregation and surface crack of continuous casting medium thick slab of peritectic steel [patent_app_type] => utility [patent_app_number] => 17/226019 [patent_app_country] => US [patent_app_date] => 2021-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 6448 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 372 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17226019 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/226019
Method for improving center segregation and surface crack of continuous casting medium thick slab of peritectic steel Apr 7, 2021 Issued
Array ( [id] => 18307459 [patent_doc_number] => 20230111359 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-13 [patent_title] => DYNAMIC PRODUCTION PLANNING METHOD FOR CONTINUOUS CASTING PLANTS [patent_app_type] => utility [patent_app_number] => 17/916138 [patent_app_country] => US [patent_app_date] => 2021-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3364 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17916138 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/916138
Dynamic production planning method for continuous casting plants Apr 7, 2021 Issued
Array ( [id] => 20143140 [patent_doc_number] => 12377457 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-05 [patent_title] => Bearing block unit and use thereof [patent_app_type] => utility [patent_app_number] => 17/207704 [patent_app_country] => US [patent_app_date] => 2021-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 0 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [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] => 17207704 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/207704
Bearing block unit and use thereof Mar 20, 2021 Issued
Array ( [id] => 18241388 [patent_doc_number] => 20230073699 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-09 [patent_title] => SELF-EXTINGUISHABLE FILM FOR LITHIUM-ION BATTERY, METHOD OF PRODUCING SAME, AND LITHIUM-ION BATTERY [patent_app_type] => utility [patent_app_number] => 17/800238 [patent_app_country] => US [patent_app_date] => 2021-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7262 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 21 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17800238 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/800238
SELF-EXTINGUISHABLE FILM FOR LITHIUM-ION BATTERY, METHOD OF PRODUCING SAME, AND LITHIUM-ION BATTERY Mar 14, 2021 Pending
Array ( [id] => 17213611 [patent_doc_number] => 20210346947 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-11 [patent_title] => DIE CASTING SYSTEM AND METHOD [patent_app_type] => utility [patent_app_number] => 17/188394 [patent_app_country] => US [patent_app_date] => 2021-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2135 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17188394 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/188394
DIE CASTING SYSTEM AND METHOD Feb 28, 2021 Abandoned
Array ( [id] => 16899544 [patent_doc_number] => 20210178460 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-06-17 [patent_title] => CRYSTALLIZER FOR CONTINUOUS CASTING AND METHOD FOR ITS PRODUCTION [patent_app_type] => utility [patent_app_number] => 17/188664 [patent_app_country] => US [patent_app_date] => 2021-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4470 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17188664 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/188664
CRYSTALLIZER FOR CONTINUOUS CASTING AND METHOD FOR ITS PRODUCTION Feb 28, 2021 Abandoned
Array ( [id] => 17775498 [patent_doc_number] => 20220241847 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-04 [patent_title] => PROFILE CHILL FOR FORMING A CAST DEVICE [patent_app_type] => utility [patent_app_number] => 17/163718 [patent_app_country] => US [patent_app_date] => 2021-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3252 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17163718 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/163718
PROFILE CHILL FOR FORMING A CAST DEVICE Jan 31, 2021 Abandoned
Array ( [id] => 18251153 [patent_doc_number] => 20230078192 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-16 [patent_title] => BATTERY MODULE [patent_app_type] => utility [patent_app_number] => 17/800542 [patent_app_country] => US [patent_app_date] => 2021-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8834 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 187 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17800542 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/800542
BATTERY MODULE Jan 24, 2021 Abandoned
Array ( [id] => 19216820 [patent_doc_number] => 20240181524 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-06 [patent_title] => HEAD AND LUBRICATED PISTON [patent_app_type] => utility [patent_app_number] => 18/285426 [patent_app_country] => US [patent_app_date] => 2021-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2474 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18285426 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/285426
Head and lubricated piston Jan 13, 2021 Issued
Array ( [id] => 18211987 [patent_doc_number] => 20230058251 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-23 [patent_title] => INSTALLATION STRUCTURE FOR DIE CASTING SLEEVE, AND DIE CASTING SLEEVE [patent_app_type] => utility [patent_app_number] => 17/797576 [patent_app_country] => US [patent_app_date] => 2021-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5796 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 179 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17797576 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/797576
Installation structure for die casting sleeve, and die casting sleeve Jan 12, 2021 Issued
Array ( [id] => 17110661 [patent_doc_number] => 20210291258 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-23 [patent_title] => MOLDING METHOD [patent_app_type] => utility [patent_app_number] => 17/143444 [patent_app_country] => US [patent_app_date] => 2021-01-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19712 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17143444 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/143444
MOLDING METHOD Jan 6, 2021 Abandoned
Array ( [id] => 17066362 [patent_doc_number] => 20210268577 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-02 [patent_title] => DIE CASTING METHOD AND DIE CASTING DEVICE [patent_app_type] => utility [patent_app_number] => 17/137977 [patent_app_country] => US [patent_app_date] => 2020-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5626 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17137977 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/137977
Die casting method and die casting device Dec 29, 2020 Issued
Array ( [id] => 17384501 [patent_doc_number] => 20220032353 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-03 [patent_title] => MICRO FIBER AND METHOD OF MANUFACTURING SAME [patent_app_type] => utility [patent_app_number] => 17/134714 [patent_app_country] => US [patent_app_date] => 2020-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4135 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17134714 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/134714
Micro fiber and method of manufacturing same Dec 27, 2020 Issued
Menu