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] => 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 [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/A1/0313/20100313856.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 [patent_figures_cnt] => 4 [patent_no_of_words] => 2574 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 2 [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 [patent_figures_cnt] => 6 [patent_no_of_words] => 3573 [patent_no_of_claims] => 17 [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] => 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 [patent_figures_cnt] => 5 [patent_no_of_words] => 5539 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [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 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 5181 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [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' [patent_app_type] => utility [patent_app_number] => 12/792407 [patent_app_country] => US [patent_app_date] => 2010-06-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 22 [patent_no_of_words] => 8152 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [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 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2232 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 201 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [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 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5299 [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] => 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
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