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] => 12186151 [patent_doc_number] => 20180045086 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-02-15 [patent_title] => 'VALVETRAIN ASSEMBLY WITH DEACTIVATION' [patent_app_type] => utility [patent_app_number] => 15/799057 [patent_app_country] => US [patent_app_date] => 2017-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 5987 [patent_no_of_claims] => 28 [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] => 15799057 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/799057
VALVETRAIN ASSEMBLY WITH DEACTIVATION Oct 30, 2017 Abandoned
Array ( [id] => 14295625 [patent_doc_number] => 10287930 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-05-14 [patent_title] => Lightweight rocker arm frame and curved crown part forming process thereof [patent_app_type] => utility [patent_app_number] => 15/795253 [patent_app_country] => US [patent_app_date] => 2017-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 2427 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15795253 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/795253
Lightweight rocker arm frame and curved crown part forming process thereof Oct 26, 2017 Issued
Array ( [id] => 15056347 [patent_doc_number] => 10458465 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-10-29 [patent_title] => Cam follower roller device [patent_app_type] => utility [patent_app_number] => 15/795885 [patent_app_country] => US [patent_app_date] => 2017-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 2510 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15795885 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/795885
Cam follower roller device Oct 26, 2017 Issued
Array ( [id] => 14159819 [patent_doc_number] => 20190107012 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-04-11 [patent_title] => TWO-PIECE BLOCK FOR VARIABLE VALVE TRAIN SYSTEM [patent_app_type] => utility [patent_app_number] => 15/727067 [patent_app_country] => US [patent_app_date] => 2017-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2220 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15727067 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/727067
Two-piece block for variable valve train system Oct 5, 2017 Issued
Array ( [id] => 14159821 [patent_doc_number] => 20190107013 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-04-11 [patent_title] => PHASE CONTROL APPARATUS AND METHOD FOR OPERATION THEREOF [patent_app_type] => utility [patent_app_number] => 15/726323 [patent_app_country] => US [patent_app_date] => 2017-10-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6760 [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] => 15726323 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/726323
Phase control apparatus and method for operation thereof Oct 4, 2017 Issued
Array ( [id] => 15009569 [patent_doc_number] => 10450907 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-10-22 [patent_title] => Valve lift control device with cylinder deactivation [patent_app_type] => utility [patent_app_number] => 15/697653 [patent_app_country] => US [patent_app_date] => 2017-09-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 15 [patent_no_of_words] => 9698 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15697653 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/697653
Valve lift control device with cylinder deactivation Sep 6, 2017 Issued
Array ( [id] => 15228865 [patent_doc_number] => 10502147 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-12-10 [patent_title] => Control apparatus for engine [patent_app_type] => utility [patent_app_number] => 16/086299 [patent_app_country] => US [patent_app_date] => 2017-08-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 20 [patent_no_of_words] => 31910 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [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] => 16086299 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/086299
Control apparatus for engine Aug 24, 2017 Issued
Array ( [id] => 15072181 [patent_doc_number] => 10465568 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-11-05 [patent_title] => Method and system for variable cam timing device [patent_app_type] => utility [patent_app_number] => 15/674370 [patent_app_country] => US [patent_app_date] => 2017-08-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 19 [patent_no_of_words] => 25126 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15674370 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/674370
Method and system for variable cam timing device Aug 9, 2017 Issued
Array ( [id] => 14732807 [patent_doc_number] => 10385797 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-08-20 [patent_title] => Linear motor valve actuator system and method for controlling valve operation [patent_app_type] => utility [patent_app_number] => 15/656461 [patent_app_country] => US [patent_app_date] => 2017-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 6573 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15656461 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/656461
Linear motor valve actuator system and method for controlling valve operation Jul 20, 2017 Issued
Array ( [id] => 13842113 [patent_doc_number] => 20190024541 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-01-24 [patent_title] => METERING PLATE FOR REDUCTION IN DISCHARGE COEFFICIENT VARIATION BETWEEN GASEOUS FUEL INJECTORS [patent_app_type] => utility [patent_app_number] => 15/655721 [patent_app_country] => US [patent_app_date] => 2017-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6322 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15655721 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/655721
Metering plate for reduction in discharge coefficient variation between gaseous fuel injectors Jul 19, 2017 Issued
Array ( [id] => 13815205 [patent_doc_number] => 10184364 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-01-22 [patent_title] => Hydraulic circuit for valve deactivation [patent_app_type] => utility [patent_app_number] => 15/651202 [patent_app_country] => US [patent_app_date] => 2017-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 12960 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15651202 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/651202
Hydraulic circuit for valve deactivation Jul 16, 2017 Issued
Array ( [id] => 13252169 [patent_doc_number] => 10138768 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-11-27 [patent_title] => System for controlling continuously variable valve duration and operating method thereof [patent_app_type] => utility [patent_app_number] => 15/623880 [patent_app_country] => US [patent_app_date] => 2017-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4339 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15623880 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/623880
System for controlling continuously variable valve duration and operating method thereof Jun 14, 2017 Issued
Array ( [id] => 13238027 [patent_doc_number] => 10132207 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-11-20 [patent_title] => Variable valve mechanism for internal combustion engine [patent_app_type] => utility [patent_app_number] => 15/623579 [patent_app_country] => US [patent_app_date] => 2017-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 13 [patent_no_of_words] => 8901 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 230 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15623579 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/623579
Variable valve mechanism for internal combustion engine Jun 14, 2017 Issued
Array ( [id] => 12138867 [patent_doc_number] => 20180016951 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-01-18 [patent_title] => 'CONTROL METHOD AND SYSTEM FOR STABILITY OF INTERMEDIATE PHASE CONTINUOUSLY VARIABLE VALVE TIMING SYSTEM' [patent_app_type] => utility [patent_app_number] => 15/622257 [patent_app_country] => US [patent_app_date] => 2017-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3487 [patent_no_of_claims] => 16 [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] => 15622257 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/622257
Control method and system for stability of intermediate phase continuously variable valve timing system Jun 13, 2017 Issued
Array ( [id] => 13608441 [patent_doc_number] => 20180355770 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-12-13 [patent_title] => OIL FLOW SYSTEM FOR ENGINE CYLINDER DEACTIVATION [patent_app_type] => utility [patent_app_number] => 15/621785 [patent_app_country] => US [patent_app_date] => 2017-06-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18405 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15621785 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/621785
Oil flow system for engine cylinder deactivation Jun 12, 2017 Issued
Array ( [id] => 13704025 [patent_doc_number] => 20170362967 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-12-21 [patent_title] => INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 15/620739 [patent_app_country] => US [patent_app_date] => 2017-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5307 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 228 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15620739 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/620739
Internal combustion engine Jun 11, 2017 Issued
Array ( [id] => 13210149 [patent_doc_number] => 10119436 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-11-06 [patent_title] => Internal combustion engine [patent_app_type] => utility [patent_app_number] => 15/618755 [patent_app_country] => US [patent_app_date] => 2017-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 13 [patent_no_of_words] => 14591 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 611 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15618755 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/618755
Internal combustion engine Jun 8, 2017 Issued
Array ( [id] => 14853441 [patent_doc_number] => 10415436 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-09-17 [patent_title] => Damper for a high pressure chamber of a variable valve train module [patent_app_type] => utility [patent_app_number] => 15/612563 [patent_app_country] => US [patent_app_date] => 2017-06-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 3911 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15612563 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/612563
Damper for a high pressure chamber of a variable valve train module Jun 1, 2017 Issued
Array ( [id] => 13591727 [patent_doc_number] => 20180347412 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-12-06 [patent_title] => CAM FOLLOWER ASSEMBLY AND METHOD OF MANUFACTURING THEREOF [patent_app_type] => utility [patent_app_number] => 15/610891 [patent_app_country] => US [patent_app_date] => 2017-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5585 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 15610891 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/610891
Cam follower assembly and method of manufacturing thereof May 31, 2017 Issued
Array ( [id] => 13094437 [patent_doc_number] => 10066553 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-09-04 [patent_title] => V engine having valve property varying mechanism [patent_app_type] => utility [patent_app_number] => 15/607787 [patent_app_country] => US [patent_app_date] => 2017-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 8919 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 418 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15607787 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/607787
V engine having valve property varying mechanism May 29, 2017 Issued
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