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] => 16500331 [patent_doc_number] => 10865709 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-12-15 [patent_title] => Flex-fuel hydrogen reformer for IC engines and gas turbines [patent_app_type] => utility [patent_app_number] => 15/096219 [patent_app_country] => US [patent_app_date] => 2016-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 12 [patent_no_of_words] => 12668 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 299 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15096219 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/096219
Flex-fuel hydrogen reformer for IC engines and gas turbines Apr 10, 2016 Issued
Array ( [id] => 16500331 [patent_doc_number] => 10865709 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-12-15 [patent_title] => Flex-fuel hydrogen reformer for IC engines and gas turbines [patent_app_type] => utility [patent_app_number] => 15/096219 [patent_app_country] => US [patent_app_date] => 2016-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 12 [patent_no_of_words] => 12668 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 299 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15096219 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/096219
Flex-fuel hydrogen reformer for IC engines and gas turbines Apr 10, 2016 Issued
Array ( [id] => 11980145 [patent_doc_number] => 20170284299 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-10-05 [patent_title] => 'POWER TURBINE SYSTEM' [patent_app_type] => utility [patent_app_number] => 15/084448 [patent_app_country] => US [patent_app_date] => 2016-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2616 [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] => 15084448 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/084448
Power turbine system Mar 28, 2016 Issued
Array ( [id] => 13050963 [patent_doc_number] => 10046861 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-08-14 [patent_title] => Aircraft safety device systems [patent_app_type] => utility [patent_app_number] => 15/080300 [patent_app_country] => US [patent_app_date] => 2016-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3126 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 254 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15080300 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/080300
Aircraft safety device systems Mar 23, 2016 Issued
Array ( [id] => 14949775 [patent_doc_number] => 10436148 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-10-08 [patent_title] => Convergent-divergent nozzle [patent_app_type] => utility [patent_app_number] => 15/079797 [patent_app_country] => US [patent_app_date] => 2016-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 3737 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15079797 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/079797
Convergent-divergent nozzle Mar 23, 2016 Issued
Array ( [id] => 16500275 [patent_doc_number] => 10865653 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-12-15 [patent_title] => Magnetic seal system [patent_app_type] => utility [patent_app_number] => 15/074082 [patent_app_country] => US [patent_app_date] => 2016-03-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2803 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 219 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15074082 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/074082
Magnetic seal system Mar 17, 2016 Issued
Array ( [id] => 14391963 [patent_doc_number] => 10309254 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-06-04 [patent_title] => Nozzle segment for a gas turbine engine with ribs defining radially spaced internal cooling channels [patent_app_type] => utility [patent_app_number] => 15/054434 [patent_app_country] => US [patent_app_date] => 2016-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5504 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 262 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15054434 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/054434
Nozzle segment for a gas turbine engine with ribs defining radially spaced internal cooling channels Feb 25, 2016 Issued
Array ( [id] => 14147233 [patent_doc_number] => 10253985 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-04-09 [patent_title] => Sequential liner for a gas turbine combustor [patent_app_type] => utility [patent_app_number] => 15/050161 [patent_app_country] => US [patent_app_date] => 2016-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 3241 [patent_no_of_claims] => 14 [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] => 15050161 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/050161
Sequential liner for a gas turbine combustor Feb 21, 2016 Issued
Array ( [id] => 13197667 [patent_doc_number] => 10113746 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-10-30 [patent_title] => Atomizer and combustion device using the same [patent_app_type] => utility [patent_app_number] => 15/015510 [patent_app_country] => US [patent_app_date] => 2016-02-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 8043 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 185 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15015510 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/015510
Atomizer and combustion device using the same Feb 3, 2016 Issued
Array ( [id] => 11084596 [patent_doc_number] => 20160281561 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-09-29 [patent_title] => 'Advanced Humid Air Turbine System and Exhaust Gas Treatment System' [patent_app_type] => utility [patent_app_number] => 15/007399 [patent_app_country] => US [patent_app_date] => 2016-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 9313 [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] => 15007399 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/007399
Advanced Humid Air Turbine System and Exhaust Gas Treatment System Jan 26, 2016 Abandoned
Array ( [id] => 14884401 [patent_doc_number] => 10422230 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-09-24 [patent_title] => Cooling hole with curved metering section [patent_app_type] => utility [patent_app_number] => 15/008148 [patent_app_country] => US [patent_app_date] => 2016-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 22 [patent_no_of_words] => 8175 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15008148 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/008148
Cooling hole with curved metering section Jan 26, 2016 Issued
Array ( [id] => 11613054 [patent_doc_number] => 09650904 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2017-05-16 [patent_title] => 'Transition duct system with straight ceramic liner for delivering hot-temperature gases in a combustion turbine engine' [patent_app_type] => utility [patent_app_number] => 15/002429 [patent_app_country] => US [patent_app_date] => 2016-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 2814 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 326 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15002429 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/002429
Transition duct system with straight ceramic liner for delivering hot-temperature gases in a combustion turbine engine Jan 20, 2016 Issued
Array ( [id] => 11549370 [patent_doc_number] => 09618207 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2017-04-11 [patent_title] => 'Transition duct system with metal liners for delivering hot-temperature gases in a combustion turbine engine' [patent_app_type] => utility [patent_app_number] => 15/002456 [patent_app_country] => US [patent_app_date] => 2016-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 2808 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 327 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15002456 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/002456
Transition duct system with metal liners for delivering hot-temperature gases in a combustion turbine engine Jan 20, 2016 Issued
Array ( [id] => 11757877 [patent_doc_number] => 20170204746 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-07-20 [patent_title] => 'STRAINERS' [patent_app_type] => utility [patent_app_number] => 14/996128 [patent_app_country] => US [patent_app_date] => 2016-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 4227 [patent_no_of_claims] => 20 [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] => 14996128 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/996128
Strainers Jan 13, 2016 Issued
Array ( [id] => 10989722 [patent_doc_number] => 20160186667 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-06-30 [patent_title] => 'GAS TURBINE ENGINE WITH TWO-SPOOL FAN AND VARIABLE VANE TURBINE' [patent_app_type] => utility [patent_app_number] => 14/994245 [patent_app_country] => US [patent_app_date] => 2016-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4282 [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] => 14994245 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/994245
Gas turbine engine with two-spool fan and variable vane turbine Jan 12, 2016 Issued
Array ( [id] => 11529600 [patent_doc_number] => 20170089577 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-03-30 [patent_title] => 'METHOD AND SYSTEM FOR IGNITER HEALTH MONITORING IN A GAS TURBINE ENGINE' [patent_app_type] => utility [patent_app_number] => 14/989842 [patent_app_country] => US [patent_app_date] => 2016-01-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 11435 [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] => 14989842 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/989842
Method and system for igniter health monitoring in a gas turbine engine Jan 6, 2016 Issued
Array ( [id] => 11730225 [patent_doc_number] => 20170191668 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-07-06 [patent_title] => 'STAGED FUEL AND AIR INJECTION IN COMBUSTION SYSTEMS OF GAS TURBINES' [patent_app_type] => utility [patent_app_number] => 14/988999 [patent_app_country] => US [patent_app_date] => 2016-01-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 10377 [patent_no_of_claims] => 23 [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] => 14988999 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/988999
STAGED FUEL AND AIR INJECTION IN COMBUSTION SYSTEMS OF GAS TURBINES Jan 5, 2016 Abandoned
Array ( [id] => 11729984 [patent_doc_number] => 20170191427 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-07-06 [patent_title] => 'SYSTEM AND METHOD OF TRANSFERRING POWER IN A GAS TURBINE ENGINE' [patent_app_type] => utility [patent_app_number] => 14/987271 [patent_app_country] => US [patent_app_date] => 2016-01-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 5262 [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] => 14987271 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/987271
System and method of transferring power in a gas turbine engine Jan 3, 2016 Issued
Array ( [id] => 11707251 [patent_doc_number] => 20170175750 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-06-22 [patent_title] => 'METHOD AND SYSTEM FOR VARYING TIP CLEARANCE GAP USING AN ACTUATED SHROUD' [patent_app_type] => utility [patent_app_number] => 14/978908 [patent_app_country] => US [patent_app_date] => 2015-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4328 [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] => 14978908 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/978908
METHOD AND SYSTEM FOR VARYING TIP CLEARANCE GAP USING AN ACTUATED SHROUD Dec 21, 2015 Abandoned
Array ( [id] => 15282689 [patent_doc_number] => 10514003 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-12-24 [patent_title] => Exhaust duct [patent_app_type] => utility [patent_app_number] => 14/972195 [patent_app_country] => US [patent_app_date] => 2015-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 5110 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14972195 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/972195
Exhaust duct Dec 16, 2015 Issued
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