Search

Ching Chang

Examiner (ID: 110, 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] => 13373315 [patent_doc_number] => 20180238199 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-23 [patent_title] => Latching Arrangement for Switchable Rocker Arm [patent_app_type] => utility [patent_app_number] => 15/437039 [patent_app_country] => US [patent_app_date] => 2017-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4302 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 283 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15437039 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/437039
Latching arrangement for switchable rocker arm Feb 19, 2017 Issued
Array ( [id] => 13344323 [patent_doc_number] => 20180223701 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-09 [patent_title] => Hydraulic Lash Adjuster [patent_app_type] => utility [patent_app_number] => 15/427865 [patent_app_country] => US [patent_app_date] => 2017-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4949 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 267 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15427865 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/427865
Hydraulic lash adjuster Feb 7, 2017 Issued
Array ( [id] => 15356647 [patent_doc_number] => 10526930 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-01-07 [patent_title] => Valve timing control system and control command unit [patent_app_type] => utility [patent_app_number] => 16/069617 [patent_app_country] => US [patent_app_date] => 2017-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 21 [patent_no_of_words] => 10825 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 370 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16069617 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/069617
Valve timing control system and control command unit Jan 26, 2017 Issued
Array ( [id] => 13734985 [patent_doc_number] => 20180371960 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-12-27 [patent_title] => CAMSHAFT AND MANUFACTURING METHOD THEREFOR [patent_app_type] => utility [patent_app_number] => 16/072859 [patent_app_country] => US [patent_app_date] => 2017-01-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5861 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16072859 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/072859
Camshaft and manufacturing method therefor Jan 18, 2017 Issued
Array ( [id] => 14200131 [patent_doc_number] => 10267167 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-04-23 [patent_title] => Ductile compensation layer for brittle components [patent_app_type] => utility [patent_app_number] => 15/401483 [patent_app_country] => US [patent_app_date] => 2017-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3687 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 14 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15401483 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/401483
Ductile compensation layer for brittle components Jan 8, 2017 Issued
Array ( [id] => 14361469 [patent_doc_number] => 10302024 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-05-28 [patent_title] => Oil control valve system for valve actuation switching [patent_app_type] => utility [patent_app_number] => 15/401544 [patent_app_country] => US [patent_app_date] => 2017-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 4772 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15401544 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/401544
Oil control valve system for valve actuation switching Jan 8, 2017 Issued
Array ( [id] => 11590264 [patent_doc_number] => 20170114675 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-04-27 [patent_title] => 'TORSION ASSEMBLY FOR CONTROLLABLY PROVIDING TORQUE TO A CAMSHAFT' [patent_app_type] => utility [patent_app_number] => 15/397154 [patent_app_country] => US [patent_app_date] => 2017-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3379 [patent_no_of_claims] => 8 [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] => 15397154 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/397154
TORSION ASSEMBLY FOR CONTROLLABLY PROVIDING TORQUE TO A CAMSHAFT Jan 2, 2017 Abandoned
Array ( [id] => 14172765 [patent_doc_number] => 10260382 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-04-16 [patent_title] => Valve bridge assembly [patent_app_type] => utility [patent_app_number] => 15/346773 [patent_app_country] => US [patent_app_date] => 2016-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 4899 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [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] => 15346773 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/346773
Valve bridge assembly Nov 8, 2016 Issued
Array ( [id] => 13857469 [patent_doc_number] => 10190446 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-01-29 [patent_title] => Valve train assembly [patent_app_type] => utility [patent_app_number] => 15/346770 [patent_app_country] => US [patent_app_date] => 2016-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 5008 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15346770 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/346770
Valve train assembly Nov 8, 2016 Issued
Array ( [id] => 14089197 [patent_doc_number] => 10240495 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-03-26 [patent_title] => Latch pin assembly; rocker arm arrangement using latch pin assembly; and assembling methods [patent_app_type] => utility [patent_app_number] => 15/345136 [patent_app_country] => US [patent_app_date] => 2016-11-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 13 [patent_no_of_words] => 6057 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15345136 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/345136
Latch pin assembly; rocker arm arrangement using latch pin assembly; and assembling methods Nov 6, 2016 Issued
Array ( [id] => 14853449 [patent_doc_number] => 10415440 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-09-17 [patent_title] => Continuously variable valve lift system and automobile [patent_app_type] => utility [patent_app_number] => 15/752551 [patent_app_country] => US [patent_app_date] => 2016-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3143 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15752551 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/752551
Continuously variable valve lift system and automobile Oct 13, 2016 Issued
Array ( [id] => 14763175 [patent_doc_number] => 10392976 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-08-27 [patent_title] => Continuously variable valve lift system and automobile [patent_app_type] => utility [patent_app_number] => 15/752561 [patent_app_country] => US [patent_app_date] => 2016-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4042 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 240 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15752561 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/752561
Continuously variable valve lift system and automobile Oct 13, 2016 Issued
Array ( [id] => 13329933 [patent_doc_number] => 20180216504 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-02 [patent_title] => ELECTROMAGNETIC LINEAR MOTOR [patent_app_type] => utility [patent_app_number] => 15/766816 [patent_app_country] => US [patent_app_date] => 2016-10-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5166 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15766816 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/766816
ELECTROMAGNETIC LINEAR MOTOR Oct 11, 2016 Abandoned
Array ( [id] => 12261155 [patent_doc_number] => 20180080350 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-03-22 [patent_title] => 'VALVE TRAIN FOR AN ENGINE' [patent_app_type] => utility [patent_app_number] => 15/271319 [patent_app_country] => US [patent_app_date] => 2016-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 4865 [patent_no_of_claims] => 20 [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] => 15271319 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/271319
Valve train for an engine Sep 20, 2016 Issued
Array ( [id] => 12529023 [patent_doc_number] => 10006523 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-06-26 [patent_title] => Power unit having cam chain tensioner pivot mechanism [patent_app_type] => utility [patent_app_number] => 15/271711 [patent_app_country] => US [patent_app_date] => 2016-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 6546 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15271711 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/271711
Power unit having cam chain tensioner pivot mechanism Sep 20, 2016 Issued
Array ( [id] => 14423831 [patent_doc_number] => 10316709 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-06-11 [patent_title] => Electromechanical valve lash adjuster [patent_app_type] => utility [patent_app_number] => 15/270070 [patent_app_country] => US [patent_app_date] => 2016-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 27 [patent_no_of_words] => 8196 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15270070 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/270070
Electromechanical valve lash adjuster Sep 19, 2016 Issued
Array ( [id] => 14295629 [patent_doc_number] => 10287932 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-05-14 [patent_title] => Camshaft phasing system including idler gear phaser for internal combustion engines [patent_app_type] => utility [patent_app_number] => 15/269517 [patent_app_country] => US [patent_app_date] => 2016-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2530 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15269517 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/269517
Camshaft phasing system including idler gear phaser for internal combustion engines Sep 18, 2016 Issued
Array ( [id] => 11691604 [patent_doc_number] => 20170167319 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-06-15 [patent_title] => 'VARIABLE VALVE DURATION/VARIABLE VALVE LIFT SYSTEM AND ENGINE PROVIDED WITH THE SAME' [patent_app_type] => utility [patent_app_number] => 15/267871 [patent_app_country] => US [patent_app_date] => 2016-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 5728 [patent_no_of_claims] => 22 [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] => 15267871 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/267871
Variable valve duration/variable valve lift system and engine provided with the same Sep 15, 2016 Issued
Array ( [id] => 13764621 [patent_doc_number] => 10174645 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-01-08 [patent_title] => Variable valve duration system and engine provided with the same [patent_app_type] => utility [patent_app_number] => 15/266945 [patent_app_country] => US [patent_app_date] => 2016-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 4452 [patent_no_of_claims] => 20 [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] => 15266945 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/266945
Variable valve duration system and engine provided with the same Sep 14, 2016 Issued
Array ( [id] => 14262583 [patent_doc_number] => 10280846 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-05-07 [patent_title] => Valve opening and closing timing control device [patent_app_type] => utility [patent_app_number] => 15/266164 [patent_app_country] => US [patent_app_date] => 2016-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 9010 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 273 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15266164 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/266164
Valve opening and closing timing control device Sep 14, 2016 Issued
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