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] => 15240429 [patent_doc_number] => 20190375000 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-12-12 [patent_title] => METHOD FOR CASTING COOLING HOLES FOR AN INTERNAL COOLING CIRCUIT OF A GAS TURBINE ENGINE COMPONENT [patent_app_type] => utility [patent_app_number] => 16/004692 [patent_app_country] => US [patent_app_date] => 2018-06-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3725 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 39 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16004692 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/004692
METHOD FOR CASTING COOLING HOLES FOR AN INTERNAL COOLING CIRCUIT OF A GAS TURBINE ENGINE COMPONENT Jun 10, 2018 Abandoned
Array ( [id] => 13587617 [patent_doc_number] => 20180345357 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-12-06 [patent_title] => CORE POSITIONING IN WAX PATTERN DIE, AND ASSOCIATED METHOD AND APPARATUS [patent_app_type] => utility [patent_app_number] => 15/996915 [patent_app_country] => US [patent_app_date] => 2018-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6668 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15996915 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/996915
CORE POSITIONING IN WAX PATTERN DIE, AND ASSOCIATED METHOD AND APPARATUS Jun 3, 2018 Abandoned
Array ( [id] => 15207821 [patent_doc_number] => 20190366597 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-12-05 [patent_title] => MOLD RELEASE AGENT MONITOR AND CONTROL SYSTEM [patent_app_type] => utility [patent_app_number] => 15/992388 [patent_app_country] => US [patent_app_date] => 2018-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2009 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 52 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15992388 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/992388
MOLD RELEASE AGENT MONITOR AND CONTROL SYSTEM May 29, 2018 Abandoned
Array ( [id] => 14564985 [patent_doc_number] => 20190210099 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-07-11 [patent_title] => METHOD FOR CONTINUOUS CASTING OF TWO OR MORE LONG PRODUCTS USING A SINGLE CONTINUOUS CASTING STRAND [patent_app_type] => utility [patent_app_number] => 15/972376 [patent_app_country] => US [patent_app_date] => 2018-05-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7318 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15972376 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/972376
METHOD FOR CONTINUOUS CASTING OF TWO OR MORE LONG PRODUCTS USING A SINGLE CONTINUOUS CASTING STRAND May 6, 2018 Abandoned
Array ( [id] => 14964301 [patent_doc_number] => 20190309629 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-10-10 [patent_title] => TURBINE BLADES AND VANES FOR GAS TURBINE ENGINE [patent_app_type] => utility [patent_app_number] => 15/971603 [patent_app_country] => US [patent_app_date] => 2018-05-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3647 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 37 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15971603 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/971603
TURBINE BLADES AND VANES FOR GAS TURBINE ENGINE May 3, 2018 Abandoned
Array ( [id] => 15554569 [patent_doc_number] => 20200061696 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-02-27 [patent_title] => FLASKLESS MOLD MACHINE [patent_app_type] => utility [patent_app_number] => 16/609831 [patent_app_country] => US [patent_app_date] => 2018-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16599 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 282 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16609831 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/609831
FLASKLESS MOLD MACHINE Apr 25, 2018 Abandoned
Array ( [id] => 15961361 [patent_doc_number] => 20200164432 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-28 [patent_title] => METHOD FOR PRODUCING METAL INGOT [patent_app_type] => utility [patent_app_number] => 16/604906 [patent_app_country] => US [patent_app_date] => 2018-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 30659 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 272 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16604906 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/604906
Method for producing metal ingot Apr 12, 2018 Issued
Array ( [id] => 15798167 [patent_doc_number] => 20200122226 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-23 [patent_title] => METHOD FOR PRODUCING METAL INGOT [patent_app_type] => utility [patent_app_number] => 16/604916 [patent_app_country] => US [patent_app_date] => 2018-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 25829 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 280 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16604916 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/604916
Method for producing metal ingot Apr 12, 2018 Issued
Array ( [id] => 15647703 [patent_doc_number] => 20200086381 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-03-19 [patent_title] => Post-treatment process for increasing the hot strength of a formed part made of particulate material and binder, 3D printing arrangement and formed part [patent_app_type] => utility [patent_app_number] => 16/615580 [patent_app_country] => US [patent_app_date] => 2018-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7726 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 16615580 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/615580
Post-treatment process for increasing the hot strength of a formed part made of particulate material and binder, 3D printing arrangement and formed part Mar 18, 2018 Abandoned
Array ( [id] => 15991387 [patent_doc_number] => 20200171564 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-06-04 [patent_title] => Crystallizer for Continuous Casting and Method for Obtaining the Same [patent_app_type] => utility [patent_app_number] => 16/492544 [patent_app_country] => US [patent_app_date] => 2018-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3421 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 233 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16492544 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/492544
Method for manufacturing a crystallizer for continuous casting Mar 8, 2018 Issued
Array ( [id] => 15709517 [patent_doc_number] => 20200101524 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-02 [patent_title] => METHOD AND APPARATUS FOR REUSING GREEN SAND [patent_app_type] => utility [patent_app_number] => 16/490067 [patent_app_country] => US [patent_app_date] => 2018-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2469 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16490067 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/490067
METHOD AND APPARATUS FOR REUSING GREEN SAND Jan 28, 2018 Abandoned
Array ( [id] => 12703852 [patent_doc_number] => 20180126450 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-05-10 [patent_title] => Molding Flask for a Molding Machine and A Molding Process Using the Molding Flask [patent_app_type] => utility [patent_app_number] => 15/861568 [patent_app_country] => US [patent_app_date] => 2018-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7573 [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] => 15861568 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/861568
Molding flask for a molding machine and a molding process using the molding flask Jan 2, 2018 Issued
Array ( [id] => 12677512 [patent_doc_number] => 20180117670 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-05-03 [patent_title] => SHOT TUBE FOR DIE-CAST MACHINE [patent_app_type] => utility [patent_app_number] => 15/851765 [patent_app_country] => US [patent_app_date] => 2017-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1830 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15851765 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/851765
SHOT TUBE FOR DIE-CAST MACHINE Dec 21, 2017 Abandoned
Array ( [id] => 14465637 [patent_doc_number] => 20190184458 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-06-20 [patent_title] => Unit Cell Titanium Casting [patent_app_type] => utility [patent_app_number] => 15/849283 [patent_app_country] => US [patent_app_date] => 2017-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4961 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 13 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15849283 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/849283
Unit Cell Titanium Casting Dec 19, 2017 Abandoned
Array ( [id] => 12882211 [patent_doc_number] => 20180185912 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-05 [patent_title] => Unit Cell Titanium Casting [patent_app_type] => utility [patent_app_number] => 15/848566 [patent_app_country] => US [patent_app_date] => 2017-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5015 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 15848566 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/848566
Unit Cell Titanium Casting Dec 19, 2017 Abandoned
Array ( [id] => 12882202 [patent_doc_number] => 20180185909 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-05 [patent_title] => Unit Cell Titanium Casting [patent_app_type] => utility [patent_app_number] => 15/847302 [patent_app_country] => US [patent_app_date] => 2017-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5032 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 15847302 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/847302
Unit Cell Titanium Casting Dec 18, 2017 Abandoned
Array ( [id] => 12833734 [patent_doc_number] => 20180169750 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-21 [patent_title] => Unit Cell Titanium Casting [patent_app_type] => utility [patent_app_number] => 15/836611 [patent_app_country] => US [patent_app_date] => 2017-12-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4890 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 15836611 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/836611
Unit Cell Titanium Casting Dec 7, 2017 Abandoned
Array ( [id] => 15023057 [patent_doc_number] => 20190322533 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-10-24 [patent_title] => PROCESS FOR PRODUCING SILICON INGOT BY SMELTING SILICON POWDER [patent_app_type] => utility [patent_app_number] => 16/467040 [patent_app_country] => US [patent_app_date] => 2017-12-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3794 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16467040 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/467040
PROCESS FOR PRODUCING SILICON INGOT BY SMELTING SILICON POWDER Dec 6, 2017 Abandoned
Array ( [id] => 12833728 [patent_doc_number] => 20180169748 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-21 [patent_title] => Unit Cell Titanium Casting [patent_app_type] => utility [patent_app_number] => 15/833684 [patent_app_country] => US [patent_app_date] => 2017-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4488 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 232 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15833684 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/833684
Unit Cell Titanium Casting Dec 5, 2017 Abandoned
Array ( [id] => 12833731 [patent_doc_number] => 20180169749 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-21 [patent_title] => Unit Cell Titanium Casting [patent_app_type] => utility [patent_app_number] => 15/833835 [patent_app_country] => US [patent_app_date] => 2017-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4524 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 230 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15833835 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/833835
Unit Cell Titanium Casting Dec 5, 2017 Abandoned
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