
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 number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 6192051
[patent_doc_number] => 20110023805
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2011-02-03
[patent_title] => 'VARIABLE VALVE TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE'
[patent_app_type] => utility
[patent_app_number] => 12/839602
[patent_app_country] => US
[patent_app_date] => 2010-07-20
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 16
[patent_figures_cnt] => 16
[patent_no_of_words] => 13532
[patent_no_of_claims] => 28
[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] => publications/A1/0023/20110023805.pdf
[firstpage_image] =>[orig_patent_app_number] => 12839602
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/839602 | Variable valve timing control apparatus for internal combustion engine | Jul 19, 2010 | Issued |
Array
(
[id] => 8338361
[patent_doc_number] => 08240279
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2012-08-14
[patent_title] => 'Engine valve control device'
[patent_app_type] => utility
[patent_app_number] => 12/836719
[patent_app_country] => US
[patent_app_date] => 2010-07-15
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 9
[patent_figures_cnt] => 12
[patent_no_of_words] => 8934
[patent_no_of_claims] => 6
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 218
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12836719
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/836719 | Engine valve control device | Jul 14, 2010 | Issued |
Array
(
[id] => 8537135
[patent_doc_number] => 08312851
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2012-11-20
[patent_title] => 'Switchable finger lever'
[patent_app_type] => utility
[patent_app_number] => 12/833261
[patent_app_country] => US
[patent_app_date] => 2010-07-09
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 9
[patent_no_of_words] => 2815
[patent_no_of_claims] => 16
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 211
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12833261
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/833261 | Switchable finger lever | Jul 8, 2010 | Issued |
Array
(
[id] => 6127699
[patent_doc_number] => 20110005197
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2011-01-13
[patent_title] => 'Turbocharger Exhaust Arrangement'
[patent_app_type] => utility
[patent_app_number] => 12/832906
[patent_app_country] => US
[patent_app_date] => 2010-07-08
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 11
[patent_figures_cnt] => 11
[patent_no_of_words] => 2557
[patent_no_of_claims] => 21
[patent_no_of_ind_claims] => 6
[patent_words_short_claim] => 0
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] => publications/A1/0005/20110005197.pdf
[firstpage_image] =>[orig_patent_app_number] => 12832906
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/832906 | Turbocharger exhaust arrangement | Jul 7, 2010 | Issued |
Array
(
[id] => 6323711
[patent_doc_number] => 20100326384
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2010-12-30
[patent_title] => 'ELECTRONICALLY CONTROLLED HYDRAULIC SYSTEM FOR VARIABLE ACTUATION OF THE VALVES OF AN INTERNAL COMBUSTION ENGINE, WITH FAST FILLING OF THE HIGH PRESSURE SIDE OF THE SYSTEM'
[patent_app_type] => utility
[patent_app_number] => 12/827494
[patent_app_country] => US
[patent_app_date] => 2010-06-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 11
[patent_figures_cnt] => 11
[patent_no_of_words] => 7879
[patent_no_of_claims] => 4
[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] => publications/A1/0326/20100326384.pdf
[firstpage_image] =>[orig_patent_app_number] => 12827494
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/827494 | Electronically controlled hydraulic system for variable actuation of the valves of an internal combustion engine, with fast filling of the high pressure side of the system | Jun 29, 2010 | Issued |
Array
(
[id] => 6323805
[patent_doc_number] => 20100326406
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2010-12-30
[patent_title] => 'TWIN FLOW SUPERCHARGED ENGINE'
[patent_app_type] => utility
[patent_app_number] => 12/824077
[patent_app_country] => US
[patent_app_date] => 2010-06-25
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 4
[patent_no_of_words] => 6292
[patent_no_of_claims] => 11
[patent_no_of_ind_claims] => 4
[patent_words_short_claim] => 0
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] => publications/A1/0326/20100326406.pdf
[firstpage_image] =>[orig_patent_app_number] => 12824077
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/824077 | Twin flow supercharged engine | Jun 24, 2010 | Issued |
Array
(
[id] => 6205991
[patent_doc_number] => 20110131985
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2011-06-09
[patent_title] => 'EXHAUST GAS ASSEMBLY'
[patent_app_type] => utility
[patent_app_number] => 12/822654
[patent_app_country] => US
[patent_app_date] => 2010-06-24
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 3
[patent_no_of_words] => 3547
[patent_no_of_claims] => 12
[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] => publications/A1/0131/20110131985.pdf
[firstpage_image] =>[orig_patent_app_number] => 12822654
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/822654 | Exhaust gas assembly | Jun 23, 2010 | Issued |
Array
(
[id] => 9125022
[patent_doc_number] => 08572961
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2013-11-05
[patent_title] => 'Turbocharger control'
[patent_app_type] => utility
[patent_app_number] => 12/821996
[patent_app_country] => US
[patent_app_date] => 2010-06-23
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 6
[patent_figures_cnt] => 10
[patent_no_of_words] => 9756
[patent_no_of_claims] => 19
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 75
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12821996
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/821996 | Turbocharger control | Jun 22, 2010 | Issued |
Array
(
[id] => 9024669
[patent_doc_number] => 08534242
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2013-09-17
[patent_title] => 'Device for variably adjusting the timing control of gas exchange valves of an internal combustion engine'
[patent_app_type] => utility
[patent_app_number] => 12/821455
[patent_app_country] => US
[patent_app_date] => 2010-06-23
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 7
[patent_no_of_words] => 6170
[patent_no_of_claims] => 10
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 177
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12821455
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/821455 | Device for variably adjusting the timing control of gas exchange valves of an internal combustion engine | Jun 22, 2010 | Issued |
Array
(
[id] => 9151745
[patent_doc_number] => 08584641
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2013-11-19
[patent_title] => 'Deactivating cam system for a valve train of an internal combustion engine'
[patent_app_type] => utility
[patent_app_number] => 12/817560
[patent_app_country] => US
[patent_app_date] => 2010-06-17
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 7
[patent_no_of_words] => 2778
[patent_no_of_claims] => 10
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 91
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12817560
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/817560 | Deactivating cam system for a valve train of an internal combustion engine | Jun 16, 2010 | Issued |
Array
(
[id] => 9111027
[patent_doc_number] => 08567189
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2013-10-29
[patent_title] => 'Twin scroll turbocharger with EGR takeoffs'
[patent_app_type] => utility
[patent_app_number] => 12/815247
[patent_app_country] => US
[patent_app_date] => 2010-06-14
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 7
[patent_figures_cnt] => 7
[patent_no_of_words] => 7485
[patent_no_of_claims] => 16
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 72
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12815247
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/815247 | Twin scroll turbocharger with EGR takeoffs | Jun 13, 2010 | Issued |
Array
(
[id] => 8537004
[patent_doc_number] => 08312720
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2012-11-20
[patent_title] => 'Method for controlling an engine braking device of an internal combustion engine and internal combustion engine for a motor vehicle'
[patent_app_type] => utility
[patent_app_number] => 12/802736
[patent_app_country] => US
[patent_app_date] => 2010-06-11
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 4
[patent_figures_cnt] => 5
[patent_no_of_words] => 5263
[patent_no_of_claims] => 18
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 249
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12802736
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/802736 | Method for controlling an engine braking device of an internal combustion engine and internal combustion engine for a motor vehicle | Jun 10, 2010 | Issued |
Array
(
[id] => 6362791
[patent_doc_number] => 20100313856
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2010-12-16
[patent_title] => 'METHOD OF CONTROLLING THE INTAKE OF A SUPERCHARGED INTERNAL-COMBUSTION ENGINE COMPRISING A BURNT GAS SCAVENGING OPERATION'
[patent_app_type] => utility
[patent_app_number] => 12/813617
[patent_app_country] => US
[patent_app_date] => 2010-06-11
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
[patent_figures_cnt] => 2
[patent_no_of_words] => 2547
[patent_no_of_claims] => 6
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[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] => publications/A1/0313/20100313856.pdf
[firstpage_image] =>[orig_patent_app_number] => 12813617
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/813617 | Method of controlling the intake of a supercharged internal-combustion engine comprising a burnt gas scavenging operation | Jun 10, 2010 | Issued |
Array
(
[id] => 9342905
[patent_doc_number] => 08662043
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2014-03-04
[patent_title] => 'Assembled shaft element, particularly assembled camshaft for valve-controlled internal combustion engines'
[patent_app_type] => utility
[patent_app_number] => 13/377355
[patent_app_country] => US
[patent_app_date] => 2010-06-08
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
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[patent_no_of_words] => 2574
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[patent_words_short_claim] => 115
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13377355
[rel_patent_id] =>[rel_patent_doc_number] =>) 13/377355 | Assembled shaft element, particularly assembled camshaft for valve-controlled internal combustion engines | Jun 7, 2010 | Issued |
Array
(
[id] => 6574196
[patent_doc_number] => 20100307436
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2010-12-09
[patent_title] => 'VARIABLE VALVE LIFT APPARATUS THAT IS EQUIPPED WITH SWING ARM'
[patent_app_type] => utility
[patent_app_number] => 12/793250
[patent_app_country] => US
[patent_app_date] => 2010-06-03
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 6
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[patent_no_of_words] => 3573
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[patent_current_assignee] =>[type] => publication
[pdf_file] => publications/A1/0307/20100307436.pdf
[firstpage_image] =>[orig_patent_app_number] => 12793250
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/793250 | Variable valve lift apparatus that is equipped with swing arm | Jun 2, 2010 | Issued |
Array
(
[id] => 8408966
[patent_doc_number] => 08272357
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2012-09-25
[patent_title] => 'Crossover valve systems'
[patent_app_type] => utility
[patent_app_number] => 12/802266
[patent_app_country] => US
[patent_app_date] => 2010-06-03
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
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[patent_no_of_words] => 5539
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[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12802266
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/802266 | Crossover valve systems | Jun 2, 2010 | Issued |
Array
(
[id] => 8992944
[patent_doc_number] => 08516816
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2013-08-27
[patent_title] => 'Avoidance of coolant overheating in exhaust-to-coolant heat exchangers'
[patent_app_type] => utility
[patent_app_number] => 12/792662
[patent_app_country] => US
[patent_app_date] => 2010-06-02
[patent_effective_date] => 0000-00-00
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[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12792662
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/792662 | Avoidance of coolant overheating in exhaust-to-coolant heat exchangers | Jun 1, 2010 | Issued |
Array
(
[id] => 9072480
[patent_doc_number] => 08550047
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2013-10-08
[patent_title] => 'Valve control apparatus for internal combustion engine'
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[patent_app_number] => 12/792407
[patent_app_country] => US
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12792407
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/792407 | Valve control apparatus for internal combustion engine | Jun 1, 2010 | Issued |
Array
(
[id] => 8361972
[patent_doc_number] => 08251032
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2012-08-28
[patent_title] => 'Swithchable finger lever for a valve train of an internal combustion engine'
[patent_app_type] => utility
[patent_app_number] => 12/802115
[patent_app_country] => US
[patent_app_date] => 2010-05-28
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[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12802115
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/802115 | Swithchable finger lever for a valve train of an internal combustion engine | May 27, 2010 | Issued |
Array
(
[id] => 7576032
[patent_doc_number] => 20110289914
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2011-12-01
[patent_title] => 'UPSTREAM EGR RESTRICTION'
[patent_app_type] => utility
[patent_app_number] => 12/789567
[patent_app_country] => US
[patent_app_date] => 2010-05-28
[patent_effective_date] => 0000-00-00
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[patent_current_assignee] =>[type] => publication
[pdf_file] => publications/A1/0289/20110289914.pdf
[firstpage_image] =>[orig_patent_app_number] => 12789567
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/789567 | UPSTREAM EGR RESTRICTION | May 27, 2010 | Abandoned |