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] => 16556244 [patent_doc_number] => 20210001392 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-01-07 [patent_title] => AGGREGATE MIXTURE FOR MOLD, MOLD, AND METHOD FOR SHAPING MOLD [patent_app_type] => utility [patent_app_number] => 16/981359 [patent_app_country] => US [patent_app_date] => 2019-03-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7665 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 19 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16981359 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/981359
AGGREGATE MIXTURE FOR MOLD, MOLD, AND METHOD FOR SHAPING MOLD Mar 19, 2019 Abandoned
Array ( [id] => 16214314 [patent_doc_number] => 10730107 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-08-04 [patent_title] => Mold transfer assemblies and methods of use [patent_app_type] => utility [patent_app_number] => 16/281968 [patent_app_country] => US [patent_app_date] => 2019-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 24 [patent_no_of_words] => 18954 [patent_no_of_claims] => 16 [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] =>[firstpage_image] =>[orig_patent_app_number] => 16281968 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/281968
Mold transfer assemblies and methods of use Feb 20, 2019 Issued
Array ( [id] => 17066364 [patent_doc_number] => 20210268579 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-02 [patent_title] => CASTING DEVICE [patent_app_type] => utility [patent_app_number] => 16/967609 [patent_app_country] => US [patent_app_date] => 2019-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9488 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16967609 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/967609
Casting device Feb 19, 2019 Issued
Array ( [id] => 14807045 [patent_doc_number] => 20190270132 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-09-05 [patent_title] => CORE FOR AN INVESTMENT CASTING PROCESS [patent_app_type] => utility [patent_app_number] => 16/268008 [patent_app_country] => US [patent_app_date] => 2019-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7259 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16268008 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/268008
CORE FOR AN INVESTMENT CASTING PROCESS Feb 4, 2019 Abandoned
Array ( [id] => 16962019 [patent_doc_number] => 20210213518 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-07-15 [patent_title] => METHOD OF PRODUCING CASING [patent_app_type] => utility [patent_app_number] => 16/967541 [patent_app_country] => US [patent_app_date] => 2019-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8807 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16967541 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/967541
METHOD OF PRODUCING CASING Jan 31, 2019 Abandoned
Array ( [id] => 17442471 [patent_doc_number] => 20220062976 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-03 [patent_title] => METHOD TO DETERMINE THE CRATER END LOCATION OF A CAST METAL PRODUCT [patent_app_type] => utility [patent_app_number] => 17/299387 [patent_app_country] => US [patent_app_date] => 2018-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2146 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [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] => 17299387 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/299387
Method to determine the crater end location of a cast metal product Dec 12, 2018 Issued
Array ( [id] => 14714647 [patent_doc_number] => 20190248387 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-15 [patent_title] => COUPLER FOR A RAILWAY VEHICLE, CORES AND METHOD FOR PRODUCTION [patent_app_type] => utility [patent_app_number] => 16/214351 [patent_app_country] => US [patent_app_date] => 2018-12-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8382 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [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] => 16214351 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/214351
Coupler for a railway vehicle, cores and method for production Dec 9, 2018 Issued
Array ( [id] => 16359931 [patent_doc_number] => 20200316682 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-08 [patent_title] => DEVICE AND METHOD FOR MANUFACTURING A METAL ALLOY BLANK BY CENTRIFUGAL CASTING [patent_app_type] => utility [patent_app_number] => 16/761998 [patent_app_country] => US [patent_app_date] => 2018-11-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5389 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16761998 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/761998
Device and method for manufacturing a metal alloy blank by centrifugal casting Nov 5, 2018 Issued
Array ( [id] => 16390104 [patent_doc_number] => 20200331045 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-22 [patent_title] => CONTINUOUS CASTING AND ROLLING APPARATUS AND CONTINUOUS CASTING AND ROLLING METHOD [patent_app_type] => utility [patent_app_number] => 16/759046 [patent_app_country] => US [patent_app_date] => 2018-11-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5691 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16759046 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/759046
CONTINUOUS CASTING AND ROLLING APPARATUS AND CONTINUOUS CASTING AND ROLLING METHOD Nov 1, 2018 Abandoned
Array ( [id] => 16914510 [patent_doc_number] => 20210187602 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-06-24 [patent_title] => METHOD AND DEVICE FOR MOLDING PARTICULARLY OF A METALLIC GLASS [patent_app_type] => utility [patent_app_number] => 16/757758 [patent_app_country] => US [patent_app_date] => 2018-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5855 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 16757758 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/757758
METHOD AND DEVICE FOR MOLDING PARTICULARLY OF A METALLIC GLASS Oct 24, 2018 Abandoned
Array ( [id] => 14211729 [patent_doc_number] => 20190118249 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-04-25 [patent_title] => APPARATUS FOR THE AUTOMATIC STARTUP OF A CONTINUOUS CASTING LINE [patent_app_type] => utility [patent_app_number] => 16/169725 [patent_app_country] => US [patent_app_date] => 2018-10-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4287 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [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] => 16169725 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/169725
APPARATUS FOR THE AUTOMATIC STARTUP OF A CONTINUOUS CASTING LINE Oct 23, 2018 Abandoned
Array ( [id] => 15799859 [patent_doc_number] => 20200123072 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-23 [patent_title] => VACUUM PRESSURE TRANSFORMATION VESSEL AND METHOD OF USE [patent_app_type] => utility [patent_app_number] => 16/167748 [patent_app_country] => US [patent_app_date] => 2018-10-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3858 [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] => 16167748 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/167748
Vacuum pressure transformation vessel and method of use Oct 22, 2018 Issued
Array ( [id] => 16237275 [patent_doc_number] => 20200254509 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-08-13 [patent_title] => MOLD CASTING DEVICE [patent_app_type] => utility [patent_app_number] => 16/760288 [patent_app_country] => US [patent_app_date] => 2018-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6129 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16760288 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/760288
Mold casting device Oct 17, 2018 Issued
Array ( [id] => 15766803 [patent_doc_number] => 20200114419 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-16 [patent_title] => Cover For A Mold System And Mold System For A Cast-On Strap Process [patent_app_type] => utility [patent_app_number] => 16/158811 [patent_app_country] => US [patent_app_date] => 2018-10-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4763 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -29 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16158811 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/158811
Cover For A Mold System And Mold System For A Cast-On Strap Process Oct 11, 2018 Abandoned
Array ( [id] => 13587619 [patent_doc_number] => 20180345358 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-12-06 [patent_title] => MOLD FORMING MACHINE [patent_app_type] => utility [patent_app_number] => 16/059505 [patent_app_country] => US [patent_app_date] => 2018-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6147 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16059505 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/059505
MOLD FORMING MACHINE Aug 8, 2018 Abandoned
Array ( [id] => 18718614 [patent_doc_number] => 11795950 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-10-24 [patent_title] => Mold pump engagement apparatus [patent_app_type] => utility [patent_app_number] => 16/632019 [patent_app_country] => US [patent_app_date] => 2018-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3018 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 204 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16632019 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/632019
Mold pump engagement apparatus Jul 19, 2018 Issued
Array ( [id] => 15798171 [patent_doc_number] => 20200122228 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-23 [patent_title] => System for the Production of a Metal Component by Continuous Casting [patent_app_type] => utility [patent_app_number] => 16/627042 [patent_app_country] => US [patent_app_date] => 2018-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2208 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [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] => 16627042 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/627042
System for the Production of a Metal Component by Continuous Casting Jul 16, 2018 Abandoned
Array ( [id] => 16719096 [patent_doc_number] => 20210086243 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-03-25 [patent_title] => A SYSTEM FOR ON-LINE MEASURING THE THICKNESS OF A CONTINUOUS CASTING BILLET AND ADJUSTING A ROLLING REDUCTION AMOUNT [patent_app_type] => utility [patent_app_number] => 16/970361 [patent_app_country] => US [patent_app_date] => 2018-06-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6966 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16970361 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/970361
A SYSTEM FOR ON-LINE MEASURING THE THICKNESS OF A CONTINUOUS CASTING BILLET AND ADJUSTING A ROLLING REDUCTION AMOUNT Jun 24, 2018 Abandoned
Array ( [id] => 16581943 [patent_doc_number] => 20210016345 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-01-21 [patent_title] => DIE-CASTING MACHINE WITH ENERGY SAVING EVALUATION SYSTEM [patent_app_type] => utility [patent_app_number] => 16/610068 [patent_app_country] => US [patent_app_date] => 2018-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3432 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 193 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16610068 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/610068
DIE-CASTING MACHINE WITH ENERGY SAVING EVALUATION SYSTEM Jun 17, 2018 Abandoned
Array ( [id] => 14404893 [patent_doc_number] => 20190168290 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-06-06 [patent_title] => CASTING SYSTEM [patent_app_type] => utility [patent_app_number] => 16/318224 [patent_app_country] => US [patent_app_date] => 2018-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9294 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 16318224 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/318224
Casting system Jun 13, 2018 Issued
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