Search

Ching Chang

Examiner (ID: 9323)

Most Active Art Unit
3748
Art Unit(s)
3746, 3748
Total Applications
1871
Issued Applications
1700
Pending Applications
11
Abandoned Applications
170

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 15384685 [patent_doc_number] => 10533516 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-01-14 [patent_title] => Internal combustion engine [patent_app_type] => utility [patent_app_number] => 15/901936 [patent_app_country] => US [patent_app_date] => 2018-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4440 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15901936 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/901936
Internal combustion engine Feb 21, 2018 Issued
Array ( [id] => 15072191 [patent_doc_number] => 10465573 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-11-05 [patent_title] => Internal combustion engine system [patent_app_type] => utility [patent_app_number] => 15/888563 [patent_app_country] => US [patent_app_date] => 2018-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 8436 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 331 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15888563 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/888563
Internal combustion engine system Feb 4, 2018 Issued
Array ( [id] => 13463393 [patent_doc_number] => 20180283239 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-10-04 [patent_title] => INTERNAL COMBUSTION ENGINE AND METHOD OF ASSEMBLING THEREOF [patent_app_type] => utility [patent_app_number] => 15/884475 [patent_app_country] => US [patent_app_date] => 2018-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3116 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15884475 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/884475
Internal combustion engine and method of assembling thereof Jan 30, 2018 Issued
Array ( [id] => 14486383 [patent_doc_number] => 10329962 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-06-25 [patent_title] => Internal combustion engine system [patent_app_type] => utility [patent_app_number] => 15/877437 [patent_app_country] => US [patent_app_date] => 2018-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 18 [patent_no_of_words] => 10556 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 324 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15877437 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/877437
Internal combustion engine system Jan 22, 2018 Issued
Array ( [id] => 16215716 [patent_doc_number] => 10731517 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-08-04 [patent_title] => Valvetrain with rocker arm housing magnetic latch [patent_app_type] => utility [patent_app_number] => 15/877145 [patent_app_country] => US [patent_app_date] => 2018-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 25 [patent_figures_cnt] => 35 [patent_no_of_words] => 12187 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15877145 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/877145
Valvetrain with rocker arm housing magnetic latch Jan 21, 2018 Issued
Array ( [id] => 14626097 [patent_doc_number] => 20190226416 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-07-25 [patent_title] => KNOCK SENSOR SYSTEMS AND METHODS FOR VALVE RECESSION CONDITIONS [patent_app_type] => utility [patent_app_number] => 15/877363 [patent_app_country] => US [patent_app_date] => 2018-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7132 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 46 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15877363 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/877363
Knock sensor systems and methods for valve recession conditions Jan 21, 2018 Issued
Array ( [id] => 13315553 [patent_doc_number] => 20180209313 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-26 [patent_title] => DYNAMIC LOCKING AND RELEASING CAM LOBE [patent_app_type] => utility [patent_app_number] => 15/874693 [patent_app_country] => US [patent_app_date] => 2018-01-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2957 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 169 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15874693 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/874693
Dynamic locking and releasing cam lobe Jan 17, 2018 Issued
Array ( [id] => 14717021 [patent_doc_number] => 20190249574 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-15 [patent_title] => Control Device and Control Method for Internal Combustion Engine [patent_app_type] => utility [patent_app_number] => 16/332925 [patent_app_country] => US [patent_app_date] => 2017-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9340 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [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] => 16332925 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/332925
Control device and control method for internal combustion engine Dec 14, 2017 Issued
Array ( [id] => 15396793 [patent_doc_number] => 10539047 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-01-21 [patent_title] => Acting force transmission device for use with valve mechanism and method of manufacturing the same [patent_app_type] => utility [patent_app_number] => 15/837372 [patent_app_country] => US [patent_app_date] => 2017-12-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 4502 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15837372 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/837372
Acting force transmission device for use with valve mechanism and method of manufacturing the same Dec 10, 2017 Issued
Array ( [id] => 14020033 [patent_doc_number] => 20190072010 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-03-07 [patent_title] => MULTIPLE VARIABLE VALVE LIFT APPARATUS [patent_app_type] => utility [patent_app_number] => 15/834755 [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] => 4387 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15834755 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/834755
Multiple variable valve lift apparatus Dec 6, 2017 Issued
Array ( [id] => 12910735 [patent_doc_number] => 20180195421 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-12 [patent_title] => VARIABLE VALVE MECHANISM OF INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 15/835225 [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] => 5742 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 316 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15835225 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/835225
Variable valve mechanism of internal combustion engine Dec 6, 2017 Issued
Array ( [id] => 14200173 [patent_doc_number] => 10267189 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-04-23 [patent_title] => Variable valve actuation device for internal combustion engine [patent_app_type] => utility [patent_app_number] => 15/833433 [patent_app_country] => US [patent_app_date] => 2017-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 25 [patent_no_of_words] => 11285 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 346 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15833433 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/833433
Variable valve actuation device for internal combustion engine Dec 5, 2017 Issued
Array ( [id] => 13566771 [patent_doc_number] => 20180334933 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-11-22 [patent_title] => MULTIPLE VARIABLE VALVE LIFT APPARATUS [patent_app_type] => utility [patent_app_number] => 15/833405 [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] => 3640 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15833405 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/833405
Multiple variable valve lift apparatus Dec 5, 2017 Issued
Array ( [id] => 12815464 [patent_doc_number] => 20180163658 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-14 [patent_title] => METHOD AND APPARATUS FOR DIAGNOSING ENGINE SYSTEM [patent_app_type] => utility [patent_app_number] => 15/831171 [patent_app_country] => US [patent_app_date] => 2017-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4764 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15831171 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/831171
Method and apparatus for diagnosing engine system Dec 3, 2017 Issued
Array ( [id] => 15542033 [patent_doc_number] => 10570786 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-02-25 [patent_title] => Rocker assembly having improved durability [patent_app_type] => utility [patent_app_number] => 15/830559 [patent_app_country] => US [patent_app_date] => 2017-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 49 [patent_figures_cnt] => 100 [patent_no_of_words] => 29943 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15830559 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/830559
Rocker assembly having improved durability Dec 3, 2017 Issued
Array ( [id] => 12792727 [patent_doc_number] => 20180156078 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-07 [patent_title] => ENGINE VALVE LIFTER OIL FLOW CONTROL AND ANTI-ROTATION FEATURE [patent_app_type] => utility [patent_app_number] => 15/821159 [patent_app_country] => US [patent_app_date] => 2017-11-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3206 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15821159 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/821159
ENGINE VALVE LIFTER OIL FLOW CONTROL AND ANTI-ROTATION FEATURE Nov 21, 2017 Abandoned
Array ( [id] => 12771640 [patent_doc_number] => 20180149048 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-05-31 [patent_title] => METHOD OF ADAPTIVELY CONTROLLING A MOTOR VEHICLE ENGINE SYSTEM [patent_app_type] => utility [patent_app_number] => 15/807739 [patent_app_country] => US [patent_app_date] => 2017-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8580 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 316 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15807739 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/807739
Method of adaptively controlling a motor vehicle engine system Nov 8, 2017 Issued
Array ( [id] => 12730921 [patent_doc_number] => 20180135474 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-05-17 [patent_title] => VALVE OPENING/CLOSING TIMING CONTROL APPARATUS [patent_app_type] => utility [patent_app_number] => 15/808399 [patent_app_country] => US [patent_app_date] => 2017-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8769 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 275 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15808399 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/808399
Valve opening/closing timing control apparatus Nov 8, 2017 Issued
Array ( [id] => 12730918 [patent_doc_number] => 20180135473 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-05-17 [patent_title] => VALVE OPENING/CLOSING TIMING CONTROL APPARATUS [patent_app_type] => utility [patent_app_number] => 15/808149 [patent_app_country] => US [patent_app_date] => 2017-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10491 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 223 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15808149 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/808149
Valve opening/closing timing control apparatus Nov 8, 2017 Issued
Array ( [id] => 12839983 [patent_doc_number] => 20180171834 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-21 [patent_title] => CONTINUOUS VARIABLE VALVE DURATION APPARATUS AND ENGINE PROVIDED WITH THE SAME [patent_app_type] => utility [patent_app_number] => 15/806153 [patent_app_country] => US [patent_app_date] => 2017-11-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4956 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15806153 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/806153
Continuous variable valve duration apparatus and engine provided with the same Nov 6, 2017 Issued
Menu