Search

Ching Chang

Examiner (ID: 3427, Phone: (571)272-4857 , Office: P/3748 )

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

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 10694416 [patent_doc_number] => 20160040562 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-02-11 [patent_title] => 'METHOD FOR MANUFACTURING A SLIDING TAPPET' [patent_app_type] => utility [patent_app_number] => 14/821016 [patent_app_country] => US [patent_app_date] => 2015-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1617 [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] => 14821016 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/821016
Method for manufacturing a sliding tappet Aug 6, 2015 Issued
Array ( [id] => 10694460 [patent_doc_number] => 20160040606 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-02-11 [patent_title] => 'CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 14/818483 [patent_app_country] => US [patent_app_date] => 2015-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 15131 [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] => 14818483 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/818483
Control apparatus for internal combustion engine Aug 4, 2015 Issued
Array ( [id] => 12031479 [patent_doc_number] => 20170321578 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-09 [patent_title] => 'CAMSHAFT HAVING AT LEAST ONE AXIALLY FIXED SLIDING ELEMENT' [patent_app_type] => utility [patent_app_number] => 15/524295 [patent_app_country] => US [patent_app_date] => 2015-08-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2712 [patent_no_of_claims] => 15 [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] => 15524295 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/524295
Camshaft having at least one axially fixed sliding element Aug 3, 2015 Issued
Array ( [id] => 12024326 [patent_doc_number] => 20170314425 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-02 [patent_title] => 'CAMSHAFT COMPRISING AN AXIALLY GUIDED SLIDING ELEMENT' [patent_app_type] => utility [patent_app_number] => 15/524663 [patent_app_country] => US [patent_app_date] => 2015-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3838 [patent_no_of_claims] => 12 [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] => 15524663 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/524663
Camshaft comprising an axially guided sliding element Aug 2, 2015 Issued
Array ( [id] => 14172767 [patent_doc_number] => 10260383 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-04-16 [patent_title] => Control valve with check valve [patent_app_type] => utility [patent_app_number] => 15/518627 [patent_app_country] => US [patent_app_date] => 2015-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3161 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 265 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15518627 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/518627
Control valve with check valve Jul 29, 2015 Issued
Array ( [id] => 10686643 [patent_doc_number] => 20160032788 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-02-04 [patent_title] => 'VARIABLE VALVE DEVICE FOR INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 14/812183 [patent_app_country] => US [patent_app_date] => 2015-07-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 8113 [patent_no_of_claims] => 3 [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] => 14812183 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/812183
Variable valve device for internal combustion engine Jul 28, 2015 Issued
Array ( [id] => 11415629 [patent_doc_number] => 09562447 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-02-07 [patent_title] => 'Valve timing control device' [patent_app_type] => utility [patent_app_number] => 14/808642 [patent_app_country] => US [patent_app_date] => 2015-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 6158 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 385 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14808642 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/808642
Valve timing control device Jul 23, 2015 Issued
Array ( [id] => 11915967 [patent_doc_number] => 09784144 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-10-10 [patent_title] => 'Camshaft phaser with a rotary valve spool' [patent_app_type] => utility [patent_app_number] => 14/803491 [patent_app_country] => US [patent_app_date] => 2015-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 22 [patent_no_of_words] => 11636 [patent_no_of_claims] => 32 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 266 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14803491 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/803491
Camshaft phaser with a rotary valve spool Jul 19, 2015 Issued
Array ( [id] => 11192028 [patent_doc_number] => 09422836 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2016-08-23 [patent_title] => 'Valve timing control apparatus' [patent_app_type] => utility [patent_app_number] => 14/800862 [patent_app_country] => US [patent_app_date] => 2015-07-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4576 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 325 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14800862 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/800862
Valve timing control apparatus Jul 15, 2015 Issued
Array ( [id] => 11737702 [patent_doc_number] => 09702276 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-07-11 [patent_title] => 'System comprising an accumulator upstream of a lost motion component in a valve bridge' [patent_app_type] => utility [patent_app_number] => 14/799837 [patent_app_country] => US [patent_app_date] => 2015-07-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 5430 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14799837 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/799837
System comprising an accumulator upstream of a lost motion component in a valve bridge Jul 14, 2015 Issued
Array ( [id] => 10664374 [patent_doc_number] => 20160010517 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-01-14 [patent_title] => 'VALVE GEAR FOR ENGINE' [patent_app_type] => utility [patent_app_number] => 14/797053 [patent_app_country] => US [patent_app_date] => 2015-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 6769 [patent_no_of_claims] => 18 [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] => 14797053 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/797053
Valve gear for engine Jul 9, 2015 Issued
Array ( [id] => 11785438 [patent_doc_number] => 09394810 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2016-07-19 [patent_title] => 'Valve timing controller' [patent_app_type] => utility [patent_app_number] => 14/796191 [patent_app_country] => US [patent_app_date] => 2015-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 7430 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 632 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14796191 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/796191
Valve timing controller Jul 9, 2015 Issued
Array ( [id] => 11231519 [patent_doc_number] => 09458742 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2016-10-04 [patent_title] => 'Variable valve mechanism for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 14/794146 [patent_app_country] => US [patent_app_date] => 2015-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 10812 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14794146 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/794146
Variable valve mechanism for internal combustion engine Jul 7, 2015 Issued
Array ( [id] => 10664372 [patent_doc_number] => 20160010516 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-01-14 [patent_title] => 'VALVE TIMING CONTROL APPARATUS' [patent_app_type] => utility [patent_app_number] => 14/791581 [patent_app_country] => US [patent_app_date] => 2015-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 6951 [patent_no_of_claims] => 5 [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] => 14791581 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/791581
Valve timing control apparatus Jul 5, 2015 Issued
Array ( [id] => 10714918 [patent_doc_number] => 20160061065 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-03-03 [patent_title] => 'TORSION ASSEMBLY FOR CONTROLLABLY PROVIDING TORQUE TO A CAMSHAFT' [patent_app_type] => utility [patent_app_number] => 14/789528 [patent_app_country] => US [patent_app_date] => 2015-07-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3358 [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] => 14789528 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/789528
Torsion assembly for controllably providing torque to a camshaft Jun 30, 2015 Issued
Array ( [id] => 10492059 [patent_doc_number] => 20150377081 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-12-31 [patent_title] => 'CAM ROCKER LEVER FOR OPERATING VALVES' [patent_app_type] => utility [patent_app_number] => 14/753739 [patent_app_country] => US [patent_app_date] => 2015-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4410 [patent_no_of_claims] => 14 [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] => 14753739 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/753739
Cam rocker lever for operating valves Jun 28, 2015 Issued
Array ( [id] => 11429569 [patent_doc_number] => 09567878 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-02-14 [patent_title] => 'Actuator for hydraulic valve of cam phaser and hydraulic valve with actuator for cam phaser' [patent_app_type] => utility [patent_app_number] => 14/750008 [patent_app_country] => US [patent_app_date] => 2015-06-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4752 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 353 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14750008 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/750008
Actuator for hydraulic valve of cam phaser and hydraulic valve with actuator for cam phaser Jun 24, 2015 Issued
Array ( [id] => 11678958 [patent_doc_number] => 09677478 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-06-13 [patent_title] => 'Method and arrangement for cylinder deactivation' [patent_app_type] => utility [patent_app_number] => 14/746522 [patent_app_country] => US [patent_app_date] => 2015-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 5376 [patent_no_of_claims] => 10 [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] => 14746522 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/746522
Method and arrangement for cylinder deactivation Jun 21, 2015 Issued
Array ( [id] => 11888549 [patent_doc_number] => 09759101 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-09-12 [patent_title] => 'Valve timing control apparatus' [patent_app_type] => utility [patent_app_number] => 14/745812 [patent_app_country] => US [patent_app_date] => 2015-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 32 [patent_figures_cnt] => 56 [patent_no_of_words] => 19963 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 306 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14745812 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/745812
Valve timing control apparatus Jun 21, 2015 Issued
Array ( [id] => 10656967 [patent_doc_number] => 20160003111 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-01-07 [patent_title] => 'SWITCHABLE FINGER FOLLOWER WITH LASH ADJUSTMENT SHIM' [patent_app_type] => utility [patent_app_number] => 14/744401 [patent_app_country] => US [patent_app_date] => 2015-06-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3775 [patent_no_of_claims] => 11 [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] => 14744401 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/744401
Switchable finger follower with lash adjustment shim Jun 18, 2015 Issued
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