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] => 16127175 [patent_doc_number] => 10697333 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-06-30 [patent_title] => Hydraulically actuated camshaft phasers for concentrically arranged camshafts [patent_app_type] => utility [patent_app_number] => 16/200728 [patent_app_country] => US [patent_app_date] => 2018-11-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 3263 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16200728 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/200728
Hydraulically actuated camshaft phasers for concentrically arranged camshafts Nov 26, 2018 Issued
Array ( [id] => 15949869 [patent_doc_number] => 10662829 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-05-26 [patent_title] => Valve timing adjustment device [patent_app_type] => utility [patent_app_number] => 16/173124 [patent_app_country] => US [patent_app_date] => 2018-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 19703 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16173124 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/173124
Valve timing adjustment device Oct 28, 2018 Issued
Array ( [id] => 16029525 [patent_doc_number] => 10677173 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-06-09 [patent_title] => Control system for internal combustion engines [patent_app_type] => utility [patent_app_number] => 16/159881 [patent_app_country] => US [patent_app_date] => 2018-10-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 15 [patent_no_of_words] => 5626 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 354 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16159881 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/159881
Control system for internal combustion engines Oct 14, 2018 Issued
Array ( [id] => 15728003 [patent_doc_number] => 10612428 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2020-04-07 [patent_title] => Collapsible valve bridge actuation system for a reciprocating piston machine cylinder [patent_app_type] => utility [patent_app_number] => 16/151703 [patent_app_country] => US [patent_app_date] => 2018-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 3832 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16151703 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/151703
Collapsible valve bridge actuation system for a reciprocating piston machine cylinder Oct 3, 2018 Issued
Array ( [id] => 14133283 [patent_doc_number] => 20190101031 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-04-04 [patent_title] => REGENERATIVE VALVE HYDRAULIC ACTUATOR [patent_app_type] => utility [patent_app_number] => 16/151036 [patent_app_country] => US [patent_app_date] => 2018-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19558 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -27 [patent_words_short_claim] => 601 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16151036 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/151036
Regenerative valve hydraulic actuator Oct 2, 2018 Issued
Array ( [id] => 16142729 [patent_doc_number] => 10704429 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-07-07 [patent_title] => Switchable rocker arm [patent_app_type] => utility [patent_app_number] => 16/143793 [patent_app_country] => US [patent_app_date] => 2018-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 5341 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 284 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16143793 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/143793
Switchable rocker arm Sep 26, 2018 Issued
Array ( [id] => 15423589 [patent_doc_number] => 10544715 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2020-01-28 [patent_title] => Cam phaser assembly [patent_app_type] => utility [patent_app_number] => 16/126661 [patent_app_country] => US [patent_app_date] => 2018-09-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2687 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16126661 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/126661
Cam phaser assembly Sep 9, 2018 Issued
Array ( [id] => 13872763 [patent_doc_number] => 20190032722 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-31 [patent_title] => EPHASER CUSHION STOP [patent_app_type] => utility [patent_app_number] => 16/050571 [patent_app_country] => US [patent_app_date] => 2018-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8127 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -27 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16050571 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/050571
EPhaser cushion stop Jul 30, 2018 Issued
Array ( [id] => 16029405 [patent_doc_number] => 10677113 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-06-09 [patent_title] => Rocker arm arrangement [patent_app_type] => utility [patent_app_number] => 16/048201 [patent_app_country] => US [patent_app_date] => 2018-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 9 [patent_no_of_words] => 4688 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 295 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16048201 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/048201
Rocker arm arrangement Jul 26, 2018 Issued
Array ( [id] => 15884079 [patent_doc_number] => 10648372 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-05-12 [patent_title] => Sliding cam system [patent_app_type] => utility [patent_app_number] => 16/045479 [patent_app_country] => US [patent_app_date] => 2018-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 18 [patent_no_of_words] => 7482 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16045479 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/045479
Sliding cam system Jul 24, 2018 Issued
Array ( [id] => 13872367 [patent_doc_number] => 20190032524 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-31 [patent_title] => SLIDING CAM SYSTEM AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 16/045495 [patent_app_country] => US [patent_app_date] => 2018-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6754 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16045495 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/045495
Sliding cam system and method for operating an internal combustion engine Jul 24, 2018 Issued
Array ( [id] => 14911811 [patent_doc_number] => 10427206 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2019-10-01 [patent_title] => Stamping groove for target wheel [patent_app_type] => utility [patent_app_number] => 16/023955 [patent_app_country] => US [patent_app_date] => 2018-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2510 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16023955 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/023955
Stamping groove for target wheel Jun 28, 2018 Issued
Array ( [id] => 13779729 [patent_doc_number] => 20190003403 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-03 [patent_title] => Throttle Actuator Position Verification [patent_app_type] => utility [patent_app_number] => 16/018513 [patent_app_country] => US [patent_app_date] => 2018-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12021 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16018513 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/018513
Throttle actuator position verification Jun 25, 2018 Issued
Array ( [id] => 13463395 [patent_doc_number] => 20180283240 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-10-04 [patent_title] => VALVE DRIVE FOR AN INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 15/942393 [patent_app_country] => US [patent_app_date] => 2018-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3444 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15942393 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/942393
Valve drive for an internal combustion engine Mar 29, 2018 Issued
Array ( [id] => 15851737 [patent_doc_number] => 10641138 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-05-05 [patent_title] => Valve drive for an internal combustion engine [patent_app_type] => utility [patent_app_number] => 15/942376 [patent_app_country] => US [patent_app_date] => 2018-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3886 [patent_no_of_claims] => 20 [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] => 15942376 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/942376
Valve drive for an internal combustion engine Mar 29, 2018 Issued
Array ( [id] => 13463399 [patent_doc_number] => 20180283242 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-10-04 [patent_title] => Variable Valve Gear with Braking Cams [patent_app_type] => utility [patent_app_number] => 15/942063 [patent_app_country] => US [patent_app_date] => 2018-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5126 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 212 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15942063 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/942063
Variable valve gear with braking cams Mar 29, 2018 Issued
Array ( [id] => 13463389 [patent_doc_number] => 20180283237 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-10-04 [patent_title] => VALVE DRIVE FOR AN INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 15/942355 [patent_app_country] => US [patent_app_date] => 2018-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4137 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 300 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15942355 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/942355
Valve drive for an internal combustion engine Mar 29, 2018 Issued
Array ( [id] => 15469811 [patent_doc_number] => 10550771 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-02-04 [patent_title] => Control device of internal-combustion engine [patent_app_type] => utility [patent_app_number] => 15/940594 [patent_app_country] => US [patent_app_date] => 2018-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 5130 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15940594 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/940594
Control device of internal-combustion engine Mar 28, 2018 Issued
Array ( [id] => 13480463 [patent_doc_number] => 20180291774 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-10-11 [patent_title] => INTERNAL COMBUSTION ENGINE COMPRISING A VALVE TRAIN WITH VALVE SPRINGS AND METHOD FOR MOUNTING SUCH A VALVE SPRING [patent_app_type] => utility [patent_app_number] => 15/934506 [patent_app_country] => US [patent_app_date] => 2018-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10256 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15934506 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/934506
Internal combustion engine comprising a valve train with valve springs and method for mounting such a valve spring Mar 22, 2018 Issued
Array ( [id] => 15282853 [patent_doc_number] => 10514085 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-12-24 [patent_title] => Internal combustion engine of saddle riding vehicle [patent_app_type] => utility [patent_app_number] => 15/914270 [patent_app_country] => US [patent_app_date] => 2018-03-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 21 [patent_no_of_words] => 11636 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 222 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15914270 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/914270
Internal combustion engine of saddle riding vehicle Mar 6, 2018 Issued
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