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] => 11705174 [patent_doc_number] => 20170173673 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-06-22 [patent_title] => 'METHOD INCLUDING FIBER REINFORCED CASTING ARTICLE' [patent_app_type] => utility [patent_app_number] => 15/448267 [patent_app_country] => US [patent_app_date] => 2017-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2754 [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] =>[firstpage_image] =>[orig_patent_app_number] => 15448267 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/448267
METHOD INCLUDING FIBER REINFORCED CASTING ARTICLE Mar 1, 2017 Abandoned
Array ( [id] => 13340807 [patent_doc_number] => 20180221943 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-09 [patent_title] => AXISYMMETIC SINGLE CRYSTAL SHOT TUBE FOR HIGH TEMPERATURE DIE CASTING [patent_app_type] => utility [patent_app_number] => 15/427897 [patent_app_country] => US [patent_app_date] => 2017-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3009 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 15427897 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/427897
AXISYMMETIC SINGLE CRYSTAL SHOT TUBE FOR HIGH TEMPERATURE DIE CASTING Feb 7, 2017 Abandoned
Array ( [id] => 11835193 [patent_doc_number] => 20170216912 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-08-03 [patent_title] => 'APPARATUS FOR CASTING MULTIPLE COMPONENTS USING A DIRECTIONAL SOLIDIFICATION PROCESS' [patent_app_type] => utility [patent_app_number] => 15/399438 [patent_app_country] => US [patent_app_date] => 2017-01-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2500 [patent_no_of_claims] => 17 [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] =>[firstpage_image] =>[orig_patent_app_number] => 15399438 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/399438
Apparatus for casting multiple components using a directional solidification process Jan 4, 2017 Issued
Array ( [id] => 13549855 [patent_doc_number] => 20180326475 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-11-15 [patent_title] => DEVICE AND METHOD THAT CAN DETECT MISALIGNMENT BETWEEN COPE AND DRAG [patent_app_type] => utility [patent_app_number] => 15/777313 [patent_app_country] => US [patent_app_date] => 2016-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12932 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 15777313 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/777313
DEVICE AND METHOD THAT CAN DETECT MISALIGNMENT BETWEEN COPE AND DRAG Dec 20, 2016 Abandoned
Array ( [id] => 17192437 [patent_doc_number] => 11161172 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-11-02 [patent_title] => Diecasting die system [patent_app_type] => utility [patent_app_number] => 16/079561 [patent_app_country] => US [patent_app_date] => 2016-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 4690 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16079561 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/079561
Diecasting die system Dec 18, 2016 Issued
Array ( [id] => 13775737 [patent_doc_number] => 20190001407 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-03 [patent_title] => INJECTION TIP FOR CASTING MACHINE, CASTING MACHINE AND METHOD USING SUCH A TIP [patent_app_type] => utility [patent_app_number] => 16/060341 [patent_app_country] => US [patent_app_date] => 2016-12-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3977 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 16060341 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/060341
INJECTION TIP FOR CASTING MACHINE, CASTING MACHINE AND METHOD USING SUCH A TIP Dec 8, 2016 Abandoned
Array ( [id] => 12792187 [patent_doc_number] => 20180155898 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-07 [patent_title] => SYSTEM AND METHOD FOR MANUFACTURING BUCKET [patent_app_type] => utility [patent_app_number] => 15/372153 [patent_app_country] => US [patent_app_date] => 2016-12-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5082 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15372153 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/372153
SYSTEM AND METHOD FOR MANUFACTURING BUCKET Dec 6, 2016 Abandoned
Array ( [id] => 13534751 [patent_doc_number] => 20180318918 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-11-08 [patent_title] => Method and Device for Overall Temperature Control Close to the Mould Cavity of Temperature-Controlled Shell-Type Moulds, Using Intercommunicating Media in Polyhedral Spaces [patent_app_type] => utility [patent_app_number] => 15/773558 [patent_app_country] => US [patent_app_date] => 2016-11-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19962 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 203 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15773558 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/773558
Method and Device for Overall Temperature Control Close to the Mould Cavity of Temperature-Controlled Shell-Type Moulds, Using Intercommunicating Media in Polyhedral Spaces Nov 3, 2016 Abandoned
Array ( [id] => 13838523 [patent_doc_number] => 20190022746 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-24 [patent_title] => Electroslag Fusion Process for Manufacturing a Blade Slab having a Large Curved Surface [patent_app_type] => utility [patent_app_number] => 15/756024 [patent_app_country] => US [patent_app_date] => 2016-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2420 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [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] => 15756024 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/756024
Electroslag Fusion Process for Manufacturing a Blade Slab having a Large Curved Surface Oct 26, 2016 Abandoned
Array ( [id] => 16799521 [patent_doc_number] => 10994439 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-05-04 [patent_title] => Turbine blade manufacturing method [patent_app_type] => utility [patent_app_number] => 15/766998 [patent_app_country] => US [patent_app_date] => 2016-10-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 3750 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15766998 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/766998
Turbine blade manufacturing method Oct 19, 2016 Issued
Array ( [id] => 11662902 [patent_doc_number] => 20170151608 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-06-01 [patent_title] => 'METHOD FOR PRODUCING COMPRESSOR HOUSING' [patent_app_type] => utility [patent_app_number] => 15/296333 [patent_app_country] => US [patent_app_date] => 2016-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 5543 [patent_no_of_claims] => 5 [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] =>[firstpage_image] =>[orig_patent_app_number] => 15296333 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/296333
METHOD FOR PRODUCING COMPRESSOR HOUSING Oct 17, 2016 Abandoned
Array ( [id] => 18700469 [patent_doc_number] => 11786961 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-10-17 [patent_title] => Investment mold slurry curtain apparatus [patent_app_type] => utility [patent_app_number] => 15/291256 [patent_app_country] => US [patent_app_date] => 2016-10-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 49 [patent_no_of_words] => 23045 [patent_no_of_claims] => 39 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 184 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15291256 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/291256
Investment mold slurry curtain apparatus Oct 11, 2016 Issued
Array ( [id] => 11527652 [patent_doc_number] => 20170087629 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-03-30 [patent_title] => 'DEVICE AND METHOD FOR PRODUCING A ROTATIONALLY SYMMETRICAL, HOLLOW METALLIC WORKPIECE' [patent_app_type] => utility [patent_app_number] => 15/278433 [patent_app_country] => US [patent_app_date] => 2016-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3154 [patent_no_of_claims] => 16 [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] =>[firstpage_image] =>[orig_patent_app_number] => 15278433 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/278433
DEVICE AND METHOD FOR PRODUCING A ROTATIONALLY SYMMETRICAL, HOLLOW METALLIC WORKPIECE Sep 27, 2016 Abandoned
Array ( [id] => 16405840 [patent_doc_number] => 10814380 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-10-27 [patent_title] => Method of casting gradient density spheres [patent_app_type] => utility [patent_app_number] => 15/254951 [patent_app_country] => US [patent_app_date] => 2016-09-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 32 [patent_no_of_words] => 19902 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 370 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15254951 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/254951
Method of casting gradient density spheres Aug 31, 2016 Issued
Array ( [id] => 15244017 [patent_doc_number] => 10507519 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-12-17 [patent_title] => Method of casting hollow vacuum spheres [patent_app_type] => utility [patent_app_number] => 15/254920 [patent_app_country] => US [patent_app_date] => 2016-09-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 32 [patent_no_of_words] => 19894 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 225 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15254920 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/254920
Method of casting hollow vacuum spheres Aug 31, 2016 Issued
Array ( [id] => 12022720 [patent_doc_number] => 20170312818 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-02 [patent_title] => 'METHOD FOR MANUFACTURING CYLINDER BLOCK FOR VEHICLE' [patent_app_type] => utility [patent_app_number] => 15/249682 [patent_app_country] => US [patent_app_date] => 2016-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 4077 [patent_no_of_claims] => 12 [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] =>[firstpage_image] =>[orig_patent_app_number] => 15249682 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/249682
METHOD FOR MANUFACTURING CYLINDER BLOCK FOR VEHICLE Aug 28, 2016 Abandoned
Array ( [id] => 12218014 [patent_doc_number] => 20180056373 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-03-01 [patent_title] => 'Anti-Veining Additive for Silica Sand Mold' [patent_app_type] => utility [patent_app_number] => 15/250690 [patent_app_country] => US [patent_app_date] => 2016-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4713 [patent_no_of_claims] => 18 [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] =>[firstpage_image] =>[orig_patent_app_number] => 15250690 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/250690
Anti-Veining Additive for Silica Sand Mold Aug 28, 2016 Abandoned
Array ( [id] => 12218025 [patent_doc_number] => 20180056384 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-03-01 [patent_title] => 'DISPLACEMENT-PRESSURE REGULATOR FOR A CASTING SYSTEM' [patent_app_type] => utility [patent_app_number] => 15/245658 [patent_app_country] => US [patent_app_date] => 2016-08-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2758 [patent_no_of_claims] => 22 [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] =>[firstpage_image] =>[orig_patent_app_number] => 15245658 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/245658
DISPLACEMENT-PRESSURE REGULATOR FOR A CASTING SYSTEM Aug 23, 2016 Abandoned
Array ( [id] => 11269672 [patent_doc_number] => 20160332219 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-11-17 [patent_title] => 'METHOD FOR PRODUCING B4C/AL NEUTRON-ABSORBING MATERIAL SHEET BY CONTINUOUS CAST ROLLING' [patent_app_type] => utility [patent_app_number] => 15/220440 [patent_app_country] => US [patent_app_date] => 2016-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3522 [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] =>[firstpage_image] =>[orig_patent_app_number] => 15220440 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/220440
METHOD FOR PRODUCING B4C/AL NEUTRON-ABSORBING MATERIAL SHEET BY CONTINUOUS CAST ROLLING Jul 26, 2016 Abandoned
Array ( [id] => 12125439 [patent_doc_number] => 20180009025 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-01-11 [patent_title] => 'METHOD OF FORMING A CASTING MOLD PATTERN' [patent_app_type] => utility [patent_app_number] => 15/201698 [patent_app_country] => US [patent_app_date] => 2016-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 9496 [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] =>[firstpage_image] =>[orig_patent_app_number] => 15201698 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/201698
METHOD OF FORMING A CASTING MOLD PATTERN Jul 4, 2016 Abandoned
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