
Ching Chang
Examiner (ID: 13656, 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 number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 11874111
[patent_doc_number] => 09745874
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2017-08-29
[patent_title] => 'Piston assembly retainer with integrated spring seat'
[patent_app_type] => utility
[patent_app_number] => 14/919164
[patent_app_country] => US
[patent_app_date] => 2015-10-21
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
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[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14919164
[rel_patent_id] =>[rel_patent_doc_number] =>) 14/919164 | Piston assembly retainer with integrated spring seat | Oct 20, 2015 | Issued |
Array
(
[id] => 11845091
[patent_doc_number] => 09732639
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2017-08-15
[patent_title] => 'Variable lift valve train'
[patent_app_type] => utility
[patent_app_number] => 14/887828
[patent_app_country] => US
[patent_app_date] => 2015-10-20
[patent_effective_date] => 0000-00-00
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14887828
[rel_patent_id] =>[rel_patent_doc_number] =>) 14/887828 | Variable lift valve train | Oct 19, 2015 | Issued |
Array
(
[id] => 11562222
[patent_doc_number] => 09624796
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2017-04-18
[patent_title] => 'Valve-timing control apparatus for internal combustion engine'
[patent_app_type] => utility
[patent_app_number] => 14/883718
[patent_app_country] => US
[patent_app_date] => 2015-10-15
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 14
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14883718
[rel_patent_id] =>[rel_patent_doc_number] =>) 14/883718 | Valve-timing control apparatus for internal combustion engine | Oct 14, 2015 | Issued |
Array
(
[id] => 11409465
[patent_doc_number] => 09556759
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2017-01-31
[patent_title] => 'Valve timing controller'
[patent_app_type] => utility
[patent_app_number] => 14/881456
[patent_app_country] => US
[patent_app_date] => 2015-10-13
[patent_effective_date] => 0000-00-00
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[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14881456
[rel_patent_id] =>[rel_patent_doc_number] =>) 14/881456 | Valve timing controller | Oct 12, 2015 | Issued |
Array
(
[id] => 10756436
[patent_doc_number] => 20160102588
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2016-04-14
[patent_title] => 'ACTUATOR FOR LIFT-SWITCHABLE VALVE TRAINS OF INTERNAL COMBUSTION ENGINES'
[patent_app_type] => utility
[patent_app_number] => 14/876841
[patent_app_country] => US
[patent_app_date] => 2015-10-07
[patent_effective_date] => 0000-00-00
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14876841
[rel_patent_id] =>[rel_patent_doc_number] =>) 14/876841 | Adjustment shaft actuator for lift-switchable valve trains of internal combustion engines | Oct 6, 2015 | Issued |
Array
(
[id] => 10792284
[patent_doc_number] => 20160138438
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2016-05-19
[patent_title] => 'CYLINDER HEAD ARRANGEMENT FOR VARIABLE VALVE ACTUATION ROCKER ARM ASSEMBLIES'
[patent_app_type] => utility
[patent_app_number] => 14/876928
[patent_app_country] => US
[patent_app_date] => 2015-10-07
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 108
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14876928
[rel_patent_id] =>[rel_patent_doc_number] =>) 14/876928 | Cylinder head arrangement for variable valve actuation rocker arm assemblies | Oct 6, 2015 | Issued |
Array
(
[id] => 11642718
[patent_doc_number] => 09664075
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2017-05-30
[patent_title] => 'Custom VVA rocker arms for left hand and right hand orientations'
[patent_app_type] => utility
[patent_app_number] => 14/876026
[patent_app_country] => US
[patent_app_date] => 2015-10-06
[patent_effective_date] => 0000-00-00
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14876026
[rel_patent_id] =>[rel_patent_doc_number] =>) 14/876026 | Custom VVA rocker arms for left hand and right hand orientations | Oct 5, 2015 | Issued |
Array
(
[id] => 14120407
[patent_doc_number] => 10247054
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2019-04-02
[patent_title] => Electromagnetic adjusting device
[patent_app_type] => utility
[patent_app_number] => 15/519779
[patent_app_country] => US
[patent_app_date] => 2015-10-01
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 1
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[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15519779
[rel_patent_id] =>[rel_patent_doc_number] =>) 15/519779 | Electromagnetic adjusting device | Sep 30, 2015 | Issued |
Array
(
[id] => 11800148
[patent_doc_number] => 09540966
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2017-01-10
[patent_title] => 'Oil control valve system for valve actuation switching'
[patent_app_type] => utility
[patent_app_number] => 14/867569
[patent_app_country] => US
[patent_app_date] => 2015-09-28
[patent_effective_date] => 0000-00-00
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14867569
[rel_patent_id] =>[rel_patent_doc_number] =>) 14/867569 | Oil control valve system for valve actuation switching | Sep 27, 2015 | Issued |
Array
(
[id] => 11888547
[patent_doc_number] => 09759099
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2017-09-12
[patent_title] => 'Valve drive train device for an internal combustion engine'
[patent_app_type] => utility
[patent_app_number] => 14/866872
[patent_app_country] => US
[patent_app_date] => 2015-09-26
[patent_effective_date] => 0000-00-00
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14866872
[rel_patent_id] =>[rel_patent_doc_number] =>) 14/866872 | Valve drive train device for an internal combustion engine | Sep 25, 2015 | Issued |
Array
(
[id] => 13052511
[patent_doc_number] => 10047640
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2018-08-14
[patent_title] => Roller tappet and method for manufacturing a housing element of a roller tappet
[patent_app_type] => utility
[patent_app_number] => 14/861487
[patent_app_country] => US
[patent_app_date] => 2015-09-22
[patent_effective_date] => 0000-00-00
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14861487
[rel_patent_id] =>[rel_patent_doc_number] =>) 14/861487 | Roller tappet and method for manufacturing a housing element of a roller tappet | Sep 21, 2015 | Issued |
Array
(
[id] => 11537369
[patent_doc_number] => 09611767
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2017-04-04
[patent_title] => 'Lost motion assembly in a valve bridge for use with a valve train comprising a hydraulic lash adjuster'
[patent_app_type] => utility
[patent_app_number] => 14/858644
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14858644
[rel_patent_id] =>[rel_patent_doc_number] =>) 14/858644 | Lost motion assembly in a valve bridge for use with a valve train comprising a hydraulic lash adjuster | Sep 17, 2015 | Issued |
Array
(
[id] => 11800150
[patent_doc_number] => 09540969
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2017-01-10
[patent_title] => 'Variable valve mechanism of internal combustion engine'
[patent_app_type] => utility
[patent_app_number] => 14/856347
[patent_app_country] => US
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[rel_patent_id] =>[rel_patent_doc_number] =>) 14/856347 | Variable valve mechanism of internal combustion engine | Sep 15, 2015 | Issued |
Array
(
[id] => 11800197
[patent_doc_number] => 09541018
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2017-01-10
[patent_title] => 'Engine cylinder bank-to-bank torque imbalance correction'
[patent_app_type] => utility
[patent_app_number] => 14/851033
[patent_app_country] => US
[patent_app_date] => 2015-09-11
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[rel_patent_id] =>[rel_patent_doc_number] =>) 14/851033 | Engine cylinder bank-to-bank torque imbalance correction | Sep 10, 2015 | Issued |
Array
(
[id] => 11298396
[patent_doc_number] => 09506396
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2016-11-29
[patent_title] => 'Twin scroll turbocharger with EGR takeoffs'
[patent_app_type] => utility
[patent_app_number] => 14/850865
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[rel_patent_id] =>[rel_patent_doc_number] =>) 14/850865 | Twin scroll turbocharger with EGR takeoffs | Sep 9, 2015 | Issued |
Array
(
[id] => 12429972
[patent_doc_number] => 09976500
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2018-05-22
[patent_title] => Method and system for selective cylinder deactivation
[patent_app_type] => utility
[patent_app_number] => 14/849218
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[rel_patent_id] =>[rel_patent_doc_number] =>) 14/849218 | Method and system for selective cylinder deactivation | Sep 8, 2015 | Issued |
Array
(
[id] => 10714925
[patent_doc_number] => 20160061072
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2016-03-03
[patent_title] => 'VALVETRAIN ASSEMBLY'
[patent_app_type] => utility
[patent_app_number] => 14/843287
[patent_app_country] => US
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[rel_patent_id] =>[rel_patent_doc_number] =>) 14/843287 | Valvetrain assembly | Sep 1, 2015 | Issued |
Array
(
[id] => 10799912
[patent_doc_number] => 20160146069
[patent_country] => US
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[patent_issue_date] => 2016-05-26
[patent_title] => 'METHOD AND SYSTEM FOR RELEASING JAMMING OF LOCKING PIN BY USE OF HOLDING CONTROL'
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[patent_app_number] => 14/838633
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Array
(
[id] => 13344331
[patent_doc_number] => 20180223705
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[patent_issue_date] => 2018-08-09
[patent_title] => A VARIABLE VALVE ACTUATION MECHANISM, AN INTERNAL COMBUSTION ENGINE, AND A VEHICLE
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Array
(
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[rel_patent_id] =>[rel_patent_doc_number] =>) 14/828932 | Valve lift control device with cylinder deactivation | Aug 17, 2015 | Issued |