Search

Sunray Chang

Examiner (ID: 17547, Phone: (571)272-3682 , Office: P/2121 )

Most Active Art Unit
2121
Art Unit(s)
2121
Total Applications
427
Issued Applications
241
Pending Applications
14
Abandoned Applications
172

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 12179321 [patent_doc_number] => 20180038256 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-02-08 [patent_title] => 'EXHAUST EMISSION CONTROL SYSTEM OF ENGINE' [patent_app_type] => utility [patent_app_number] => 15/650261 [patent_app_country] => US [patent_app_date] => 2017-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 26019 [patent_no_of_claims] => 19 [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] => 15650261 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/650261
Exhaust emission control system of engine Jul 13, 2017 Issued
Array ( [id] => 13857499 [patent_doc_number] => 10190461 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-01-29 [patent_title] => Exhaust gas control system for internal combustion engine and control method for internal combustion engine [patent_app_type] => utility [patent_app_number] => 15/649899 [patent_app_country] => US [patent_app_date] => 2017-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 12 [patent_no_of_words] => 11550 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 272 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15649899 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/649899
Exhaust gas control system for internal combustion engine and control method for internal combustion engine Jul 13, 2017 Issued
Array ( [id] => 13827883 [patent_doc_number] => 20190017426 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-17 [patent_title] => EXHAUST GAS MIXER [patent_app_type] => utility [patent_app_number] => 15/650593 [patent_app_country] => US [patent_app_date] => 2017-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9508 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15650593 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/650593
Exhaust gas mixer Jul 13, 2017 Issued
Array ( [id] => 12157764 [patent_doc_number] => 20180029029 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-02-01 [patent_title] => 'OXIDATION CATALYST FOR A COMPRESSION IGNITION ENGINE AND A METHOD OF PREPARATION THEREFOR' [patent_app_type] => utility [patent_app_number] => 15/649745 [patent_app_country] => US [patent_app_date] => 2017-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17892 [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] => 15649745 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/649745
OXIDATION CATALYST FOR A COMPRESSION IGNITION ENGINE AND A METHOD OF PREPARATION THEREFOR Jul 13, 2017 Abandoned
Array ( [id] => 13857491 [patent_doc_number] => 10190457 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-01-29 [patent_title] => Exhaust gas purification apparatus for an internal combustion engine [patent_app_type] => utility [patent_app_number] => 15/650284 [patent_app_country] => US [patent_app_date] => 2017-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 14 [patent_no_of_words] => 22881 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 433 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15650284 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/650284
Exhaust gas purification apparatus for an internal combustion engine Jul 13, 2017 Issued
Array ( [id] => 13827875 [patent_doc_number] => 20190017422 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-17 [patent_title] => WATER SEPARATION DEVICE FOR ENGINE EXHAUST GAS [patent_app_type] => utility [patent_app_number] => 15/648748 [patent_app_country] => US [patent_app_date] => 2017-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6804 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15648748 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/648748
Water separation device for engine exhaust gas Jul 12, 2017 Issued
Array ( [id] => 17030246 [patent_doc_number] => 11092053 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-08-17 [patent_title] => Installation for depollution of exhaust gases, particularly of an internal-combustion engines, and method using such an installation [patent_app_type] => utility [patent_app_number] => 16/328075 [patent_app_country] => US [patent_app_date] => 2017-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2819 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16328075 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/328075
Installation for depollution of exhaust gases, particularly of an internal-combustion engines, and method using such an installation Jul 10, 2017 Issued
Array ( [id] => 13794691 [patent_doc_number] => 20190010884 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-10 [patent_title] => SELECTIVE CATALYTIC REDUCTION STEADY STATE AMMONIA SLIP DETECTION [patent_app_type] => utility [patent_app_number] => 15/645424 [patent_app_country] => US [patent_app_date] => 2017-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8603 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15645424 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/645424
Selective catalytic reduction steady state ammonia slip detection Jul 9, 2017 Issued
Array ( [id] => 13509169 [patent_doc_number] => 20180306127 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-10-25 [patent_title] => INTERNAL COMBUSTION ENGINE INJECTION SYSTEM [patent_app_type] => utility [patent_app_number] => 15/633880 [patent_app_country] => US [patent_app_date] => 2017-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6474 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 15633880 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/633880
Internal combustion engine injection system Jun 26, 2017 Issued
Array ( [id] => 16415160 [patent_doc_number] => 10823040 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-11-03 [patent_title] => Exhaust gas control system for internal combustion engine [patent_app_type] => utility [patent_app_number] => 15/634073 [patent_app_country] => US [patent_app_date] => 2017-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 10152 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 200 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15634073 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/634073
Exhaust gas control system for internal combustion engine Jun 26, 2017 Issued
Array ( [id] => 14536005 [patent_doc_number] => 20190203624 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-07-04 [patent_title] => NH3 SLIP DETECTION USING NOX SENSOR [patent_app_type] => utility [patent_app_number] => 16/312170 [patent_app_country] => US [patent_app_date] => 2017-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5836 [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] => 16312170 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/312170
NH Jun 26, 2017 Issued
Array ( [id] => 14059041 [patent_doc_number] => 10233805 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-03-19 [patent_title] => Exhaust gas control system [patent_app_type] => utility [patent_app_number] => 15/634156 [patent_app_country] => US [patent_app_date] => 2017-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 9703 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 200 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15634156 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/634156
Exhaust gas control system Jun 26, 2017 Issued
Array ( [id] => 16642865 [patent_doc_number] => 10920707 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-02-16 [patent_title] => Fuel heating [patent_app_type] => utility [patent_app_number] => 16/312156 [patent_app_country] => US [patent_app_date] => 2017-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 7482 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 276 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16312156 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/312156
Fuel heating Jun 25, 2017 Issued
Array ( [id] => 16635717 [patent_doc_number] => 10914215 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-02-09 [patent_title] => Mixer device for an exhaust gas aftertreatment system of a motor vehicle, exhaust gas aftertreatment system, and motor vehicle [patent_app_type] => utility [patent_app_number] => 16/311111 [patent_app_country] => US [patent_app_date] => 2017-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2819 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 188 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16311111 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/311111
Mixer device for an exhaust gas aftertreatment system of a motor vehicle, exhaust gas aftertreatment system, and motor vehicle Jun 19, 2017 Issued
Array ( [id] => 14517067 [patent_doc_number] => 10335770 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-07-02 [patent_title] => Method and system for diesel oxidation catalysts [patent_app_type] => utility [patent_app_number] => 15/623545 [patent_app_country] => US [patent_app_date] => 2017-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 13 [patent_no_of_words] => 21774 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15623545 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/623545
Method and system for diesel oxidation catalysts Jun 14, 2017 Issued
Array ( [id] => 13662251 [patent_doc_number] => 10161279 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-12-25 [patent_title] => Tank device for an aqueous urea solution and method for reducing ice pressure in a tank device [patent_app_type] => utility [patent_app_number] => 15/622860 [patent_app_country] => US [patent_app_date] => 2017-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 4467 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [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] => 15622860 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/622860
Tank device for an aqueous urea solution and method for reducing ice pressure in a tank device Jun 13, 2017 Issued
Array ( [id] => 15607147 [patent_doc_number] => 10584623 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-03-10 [patent_title] => Exhaust heat recovery and acoustic valve [patent_app_type] => utility [patent_app_number] => 15/618733 [patent_app_country] => US [patent_app_date] => 2017-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 29 [patent_no_of_words] => 4531 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15618733 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/618733
Exhaust heat recovery and acoustic valve Jun 8, 2017 Issued
Array ( [id] => 12887236 [patent_doc_number] => 20180187587 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-05 [patent_title] => THERMOELECTRIC GENERATING APPARATUS OF VEHICLE AND METHOD FOR CONTROLLING THE SAME [patent_app_type] => utility [patent_app_number] => 15/613672 [patent_app_country] => US [patent_app_date] => 2017-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6603 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15613672 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/613672
Thermoelectric generating apparatus of vehicle and method for controlling the same Jun 4, 2017 Issued
Array ( [id] => 17453567 [patent_doc_number] => 11268415 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-03-08 [patent_title] => Method for controlling the temperature of a NOx controlling component and an exhaust after treatment system [patent_app_type] => utility [patent_app_number] => 16/615273 [patent_app_country] => US [patent_app_date] => 2017-06-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 8667 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16615273 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/615273
Method for controlling the temperature of a NOx controlling component and an exhaust after treatment system Jun 1, 2017 Issued
Array ( [id] => 17000020 [patent_doc_number] => 11078822 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-08-03 [patent_title] => Method for operating an internal combustion engine installed in a vehicle [patent_app_type] => utility [patent_app_number] => 16/304198 [patent_app_country] => US [patent_app_date] => 2017-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 7178 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16304198 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/304198
Method for operating an internal combustion engine installed in a vehicle May 18, 2017 Issued
Menu