Search

William C. Choi

Examiner (ID: 12128, Phone: (571)272-2324 , Office: P/2872 )

Most Active Art Unit
2872
Art Unit(s)
2872, 2873
Total Applications
2398
Issued Applications
2207
Pending Applications
103
Abandoned Applications
131

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 16029707 [patent_doc_number] => 10677264 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-06-09 [patent_title] => Supersonic single-stage turbofan engine [patent_app_type] => utility [patent_app_number] => 15/293368 [patent_app_country] => US [patent_app_date] => 2016-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 4175 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15293368 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/293368
Supersonic single-stage turbofan engine Oct 13, 2016 Issued
Array ( [id] => 12642972 [patent_doc_number] => 20180106155 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-04-19 [patent_title] => TRANSITION DUCT FORMED OF A PLURALITY OF SEGMENTS [patent_app_type] => utility [patent_app_number] => 15/292390 [patent_app_country] => US [patent_app_date] => 2016-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3079 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 15292390 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/292390
TRANSITION DUCT FORMED OF A PLURALITY OF SEGMENTS Oct 12, 2016 Abandoned
Array ( [id] => 11628074 [patent_doc_number] => 20170138263 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-05-18 [patent_title] => 'AIR INLET DUCT HAVING A PARTICLE SEPARATOR AND AN AGGLOMERATOR FOR A GAS TURBINE ENGINE' [patent_app_type] => utility [patent_app_number] => 15/292676 [patent_app_country] => US [patent_app_date] => 2016-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 7213 [patent_no_of_claims] => 26 [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] => 15292676 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/292676
Air-inlet duct having a particle separator and an agglomerator for a gas turbine engine Oct 12, 2016 Issued
Array ( [id] => 11994661 [patent_doc_number] => 20170298816 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-10-19 [patent_title] => 'GAS TURBINE ENGINE' [patent_app_type] => utility [patent_app_number] => 15/292852 [patent_app_country] => US [patent_app_date] => 2016-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 5448 [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] => 15292852 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/292852
GAS TURBINE ENGINE Oct 12, 2016 Abandoned
Array ( [id] => 16030111 [patent_doc_number] => 10677466 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-06-09 [patent_title] => Combustor inlet flow conditioner [patent_app_type] => utility [patent_app_number] => 15/292485 [patent_app_country] => US [patent_app_date] => 2016-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 5072 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 304 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15292485 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/292485
Combustor inlet flow conditioner Oct 12, 2016 Issued
Array ( [id] => 14763359 [patent_doc_number] => 10393068 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-08-27 [patent_title] => Shafting arrangement for a gas turbine engine [patent_app_type] => utility [patent_app_number] => 15/262612 [patent_app_country] => US [patent_app_date] => 2016-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 4336 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15262612 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/262612
Shafting arrangement for a gas turbine engine Sep 11, 2016 Issued
Array ( [id] => 14059163 [patent_doc_number] => 10233868 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-03-19 [patent_title] => Efficient, low pressure ratio propulsor for gas turbine engines [patent_app_type] => utility [patent_app_number] => 15/252811 [patent_app_country] => US [patent_app_date] => 2016-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1936 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15252811 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/252811
Efficient, low pressure ratio propulsor for gas turbine engines Aug 30, 2016 Issued
Array ( [id] => 11350963 [patent_doc_number] => 20160369703 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-12-22 [patent_title] => 'EFFICIENT, LOW PRESSURE RATIO PROPULSOR FOR GAS TURBINE ENGINES' [patent_app_type] => utility [patent_app_number] => 15/233142 [patent_app_country] => US [patent_app_date] => 2016-08-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4059 [patent_no_of_claims] => 30 [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] => 15233142 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/233142
Efficient, low pressure ratio propulsor for gas turbine engines Aug 9, 2016 Issued
Array ( [id] => 11121645 [patent_doc_number] => 20160318619 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-11-03 [patent_title] => 'COOLED COOLING AIR SYSTEM FOR A GAS TURBINE' [patent_app_type] => utility [patent_app_number] => 15/209880 [patent_app_country] => US [patent_app_date] => 2016-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 4138 [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] => 15209880 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/209880
Cooled cooling air system for a gas turbine Jul 13, 2016 Issued
Array ( [id] => 14361503 [patent_doc_number] => 10302042 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-05-28 [patent_title] => Variable area fan nozzle with wall thickness distribution [patent_app_type] => utility [patent_app_number] => 15/177657 [patent_app_country] => US [patent_app_date] => 2016-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 12 [patent_no_of_words] => 4448 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15177657 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/177657
Variable area fan nozzle with wall thickness distribution Jun 8, 2016 Issued
Array ( [id] => 12981970 [patent_doc_number] => 20170342910 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-30 [patent_title] => ATTACHMENT SYSTEM FOR A GAS TURBINE ENGINE [patent_app_type] => utility [patent_app_number] => 15/163747 [patent_app_country] => US [patent_app_date] => 2016-05-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5590 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15163747 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/163747
ATTACHMENT SYSTEM FOR A GAS TURBINE ENGINE May 24, 2016 Abandoned
Array ( [id] => 14552311 [patent_doc_number] => 10344604 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-07-09 [patent_title] => Turbomachine diffuser including flow mixing lobes and method [patent_app_type] => utility [patent_app_number] => 15/159850 [patent_app_country] => US [patent_app_date] => 2016-05-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 10 [patent_no_of_words] => 2178 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15159850 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/159850
Turbomachine diffuser including flow mixing lobes and method May 19, 2016 Issued
Array ( [id] => 12051959 [patent_doc_number] => 20170328304 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-16 [patent_title] => 'THRUST REVERSER SYSTEM WITH HIDDEN BLOCKER DOORS' [patent_app_type] => utility [patent_app_number] => 15/154516 [patent_app_country] => US [patent_app_date] => 2016-05-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 4658 [patent_no_of_claims] => 18 [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] => 15154516 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/154516
Thrust reverser system with hidden blocker doors May 12, 2016 Issued
Array ( [id] => 16043889 [patent_doc_number] => 10683809 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-06-16 [patent_title] => Impeller-mounted vortex spoiler [patent_app_type] => utility [patent_app_number] => 15/150628 [patent_app_country] => US [patent_app_date] => 2016-05-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 3982 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 238 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15150628 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/150628
Impeller-mounted vortex spoiler May 9, 2016 Issued
Array ( [id] => 11129990 [patent_doc_number] => 20160326965 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-11-10 [patent_title] => 'METHOD FOR CONTROLLING THE TEMPERATURE OF A GAS TURBINE DURING A SHUTDOWN' [patent_app_type] => utility [patent_app_number] => 15/147662 [patent_app_country] => US [patent_app_date] => 2016-05-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2707 [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] => 15147662 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/147662
METHOD FOR CONTROLLING THE TEMPERATURE OF A GAS TURBINE DURING A SHUTDOWN May 4, 2016 Abandoned
Array ( [id] => 11964272 [patent_doc_number] => 20170268425 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-09-21 [patent_title] => 'GAS TURBINE COMBINED CYCLE OPTIMIZED FOR POST-COMBUSTION CO2 CAPTURE' [patent_app_type] => utility [patent_app_number] => 15/142783 [patent_app_country] => US [patent_app_date] => 2016-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3554 [patent_no_of_claims] => 15 [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] => 15142783 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/142783
Gas turbine combined cycle optimized for post-combustion CO Apr 28, 2016 Issued
Array ( [id] => 11115737 [patent_doc_number] => 20160312710 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-10-27 [patent_title] => 'OXYGEN ENHANCED PNEUMATIC STARTING' [patent_app_type] => utility [patent_app_number] => 15/135617 [patent_app_country] => US [patent_app_date] => 2016-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2375 [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] => 15135617 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/135617
Oxygen enhanced pneumatic starting Apr 21, 2016 Issued
Array ( [id] => 14979877 [patent_doc_number] => 10443846 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-10-15 [patent_title] => Combustor thermal shield fabrication method [patent_app_type] => utility [patent_app_number] => 15/134511 [patent_app_country] => US [patent_app_date] => 2016-04-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5846 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 187 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15134511 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/134511
Combustor thermal shield fabrication method Apr 20, 2016 Issued
Array ( [id] => 11994675 [patent_doc_number] => 20170298830 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-10-19 [patent_title] => 'OIL-FREE GAS TURBINE ENGINE' [patent_app_type] => utility [patent_app_number] => 15/131088 [patent_app_country] => US [patent_app_date] => 2016-04-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 5368 [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] => 15131088 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/131088
OIL-FREE GAS TURBINE ENGINE Apr 17, 2016 Abandoned
Array ( [id] => 13857421 [patent_doc_number] => 10190422 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-01-29 [patent_title] => Rotation enhanced turbine blade cooling [patent_app_type] => utility [patent_app_number] => 15/096854 [patent_app_country] => US [patent_app_date] => 2016-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 6682 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 490 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15096854 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/096854
Rotation enhanced turbine blade cooling Apr 11, 2016 Issued
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