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] => 12165606 [patent_doc_number] => 09884365 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-02-06 [patent_title] => 'Shot tube for die-cast machine' [patent_app_type] => utility [patent_app_number] => 14/767011 [patent_app_country] => US [patent_app_date] => 2014-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2039 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14767011 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/767011
Shot tube for die-cast machine Mar 5, 2014 Issued
Array ( [id] => 10684855 [patent_doc_number] => 20160031000 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-02-04 [patent_title] => 'Method And Device For Producing A Cast Workpiece' [patent_app_type] => utility [patent_app_number] => 14/775918 [patent_app_country] => US [patent_app_date] => 2014-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2637 [patent_no_of_claims] => 10 [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] => 14775918 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/775918
Method And Device For Producing A Cast Workpiece Feb 12, 2014 Abandoned
Array ( [id] => 10655210 [patent_doc_number] => 20160001354 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-01-07 [patent_title] => 'GAS TURBINE ENGINE COMPONENT MANUFACTURING METHOD AND CORE FOR MAKING SAME' [patent_app_type] => utility [patent_app_number] => 14/767612 [patent_app_country] => US [patent_app_date] => 2014-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3075 [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] => 14767612 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/767612
GAS TURBINE ENGINE COMPONENT MANUFACTURING METHOD AND CORE FOR MAKING SAME Feb 11, 2014 Abandoned
Array ( [id] => 10743566 [patent_doc_number] => 20160089717 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-03-31 [patent_title] => 'TIE BAR WITHDRAWING DEVICE' [patent_app_type] => utility [patent_app_number] => 14/785109 [patent_app_country] => US [patent_app_date] => 2014-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 7535 [patent_no_of_claims] => 14 [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] => 14785109 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/785109
TIE BAR WITHDRAWING DEVICE Feb 6, 2014 Abandoned
Array ( [id] => 14793179 [patent_doc_number] => 10399580 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-09-03 [patent_title] => Process for producing a coupler knuckle and improved coupler knuckle [patent_app_type] => utility [patent_app_number] => 14/171700 [patent_app_country] => US [patent_app_date] => 2014-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 15 [patent_no_of_words] => 6352 [patent_no_of_claims] => 40 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 467 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14171700 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/171700
Process for producing a coupler knuckle and improved coupler knuckle Feb 2, 2014 Issued
Array ( [id] => 10655209 [patent_doc_number] => 20160001353 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-01-07 [patent_title] => 'INVESTMENT MOLD WITH FUGITIVE BEADS AND METHOD RELATED THERETO' [patent_app_type] => utility [patent_app_number] => 14/768256 [patent_app_country] => US [patent_app_date] => 2014-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3251 [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] => 14768256 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/768256
Investment mold with fugitive beads and method related thereto Jan 26, 2014 Issued
Array ( [id] => 16059263 [patent_doc_number] => 10688555 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-06-23 [patent_title] => Method and casting mould for the manufacture of cast parts, in particular cylinder blocks and cylinder heads, with a functional feeder connection [patent_app_type] => utility [patent_app_number] => 14/761656 [patent_app_country] => US [patent_app_date] => 2014-01-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4014 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 305 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14761656 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/761656
Method and casting mould for the manufacture of cast parts, in particular cylinder blocks and cylinder heads, with a functional feeder connection Jan 19, 2014 Issued
Array ( [id] => 10467619 [patent_doc_number] => 20150352634 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-12-10 [patent_title] => 'METHOD FOR MANUFACTURING A COMPONENT USING THE LOST-WAX CASTING METHOD WITH DIRECTED COOLING' [patent_app_type] => utility [patent_app_number] => 14/760559 [patent_app_country] => US [patent_app_date] => 2014-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4111 [patent_no_of_claims] => 9 [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] => 14760559 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/760559
Method for manufacturing a component using the lost-wax casting method with directed cooling Jan 12, 2014 Issued
Array ( [id] => 9445471 [patent_doc_number] => 20140116639 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-05-01 [patent_title] => 'COOLING CONTROL SYSTEM FOR CONTINUOUS CASTING OF METAL' [patent_app_type] => utility [patent_app_number] => 14/147152 [patent_app_country] => US [patent_app_date] => 2014-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 18 [patent_no_of_words] => 13027 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 4 [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] => 14147152 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/147152
COOLING CONTROL SYSTEM FOR CONTINUOUS CASTING OF METAL Jan 2, 2014 Abandoned
Array ( [id] => 10662733 [patent_doc_number] => 20160008876 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-01-14 [patent_title] => 'METHOD FOR CONTROLLING SURFACE QUALTIY OF ULTRA-LOW CARBON STEEL SLAB' [patent_app_type] => utility [patent_app_number] => 14/770746 [patent_app_country] => US [patent_app_date] => 2013-12-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 3894 [patent_no_of_claims] => 7 [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] => 14770746 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/770746
Method for controlling surface quality of ultra-low carbon steel slab Dec 25, 2013 Issued
Array ( [id] => 11901333 [patent_doc_number] => 09770755 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-09-26 [patent_title] => 'Casting plate and casting plate casing with detector-engaging protrusion' [patent_app_type] => utility [patent_app_number] => 14/067017 [patent_app_country] => US [patent_app_date] => 2013-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 28 [patent_no_of_words] => 6439 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 217 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14067017 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/067017
Casting plate and casting plate casing with detector-engaging protrusion Oct 29, 2013 Issued
Array ( [id] => 9327219 [patent_doc_number] => 20140054001 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-02-27 [patent_title] => 'Method Of Manufacturing A Workpiece With Multiple Metal Layers' [patent_app_type] => utility [patent_app_number] => 14/065745 [patent_app_country] => US [patent_app_date] => 2013-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 8443 [patent_no_of_claims] => 9 [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] => 14065745 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/065745
Method Of Manufacturing A Workpiece With Multiple Metal Layers Oct 28, 2013 Abandoned
Array ( [id] => 9330344 [patent_doc_number] => 20140057126 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-02-27 [patent_title] => 'Method Of Manufacturing A Workpiece With Multiple Metal Layers' [patent_app_type] => utility [patent_app_number] => 14/065763 [patent_app_country] => US [patent_app_date] => 2013-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 8446 [patent_no_of_claims] => 9 [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] => 14065763 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/065763
Method Of Manufacturing A Workpiece With Multiple Metal Layers Oct 28, 2013 Abandoned
Array ( [id] => 9291170 [patent_doc_number] => 20140034804 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-02-06 [patent_title] => 'DOWN SPRUE CORE FOR USE IN CASTING RAILCAR COUPLER KNUCKLES' [patent_app_type] => utility [patent_app_number] => 14/048160 [patent_app_country] => US [patent_app_date] => 2013-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 42 [patent_figures_cnt] => 42 [patent_no_of_words] => 7309 [patent_no_of_claims] => 28 [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] => 14048160 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/048160
DOWN SPRUE CORE FOR USE IN CASTING RAILCAR COUPLER KNUCKLES Oct 7, 2013 Abandoned
Array ( [id] => 10280524 [patent_doc_number] => 20150165521 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-06-18 [patent_title] => 'SHOT SLEEVE ASSEMBLY WITH MATERIALS OF DIFFERENT COEFFICIENTS OF THERMAL EXPANSION' [patent_app_type] => utility [patent_app_number] => 14/414469 [patent_app_country] => US [patent_app_date] => 2013-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2966 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 4 [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] => 14414469 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/414469
SHOT SLEEVE ASSEMBLY WITH MATERIALS OF DIFFERENT COEFFICIENTS OF THERMAL EXPANSION Jul 25, 2013 Abandoned
Array ( [id] => 10366237 [patent_doc_number] => 20150251242 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-09-10 [patent_title] => 'Casting Cores and Manufacture Methods' [patent_app_type] => utility [patent_app_number] => 14/432790 [patent_app_country] => US [patent_app_date] => 2013-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 5442 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 5 [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] => 14432790 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/432790
Casting cores and manufacture methods Jul 23, 2013 Issued
Array ( [id] => 9219513 [patent_doc_number] => 20140014288 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-01-16 [patent_title] => 'DEVICE FOR CASTING' [patent_app_type] => utility [patent_app_number] => 13/910800 [patent_app_country] => US [patent_app_date] => 2013-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 6737 [patent_no_of_claims] => 24 [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] => 13910800 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/910800
DEVICE FOR CASTING Jun 4, 2013 Abandoned
Array ( [id] => 9194540 [patent_doc_number] => 20130333855 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-12-19 [patent_title] => 'INVESTMENT CASTING UTILIZING FLEXIBLE WAX PATTERN TOOL FOR SUPPORTING A CERAMIC CORE ALONG ITS LENGTH DURING WAX INJECTION' [patent_app_type] => utility [patent_app_number] => 13/886449 [patent_app_country] => US [patent_app_date] => 2013-05-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 8184 [patent_no_of_claims] => 20 [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] => 13886449 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/886449
INVESTMENT CASTING UTILIZING FLEXIBLE WAX PATTERN TOOL FOR SUPPORTING A CERAMIC CORE ALONG ITS LENGTH DURING WAX INJECTION May 2, 2013 Abandoned
Array ( [id] => 10244160 [patent_doc_number] => 20150129155 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-05-14 [patent_title] => 'Method for producing molds and cores for metal casting and molds and cores produced according to this method' [patent_app_type] => utility [patent_app_number] => 14/396798 [patent_app_country] => US [patent_app_date] => 2013-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11990 [patent_no_of_claims] => 19 [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] => 14396798 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/396798
Method for producing molds and cores for metal casting and molds and cores produced according to this method Apr 25, 2013 Abandoned
Array ( [id] => 10237454 [patent_doc_number] => 20150122448 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-05-07 [patent_title] => 'CASTING PROCESS AND MOULD' [patent_app_type] => utility [patent_app_number] => 14/397267 [patent_app_country] => US [patent_app_date] => 2013-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1725 [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] => 14397267 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/397267
CASTING PROCESS AND MOULD Apr 25, 2013 Abandoned
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