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] => 4511998 [patent_doc_number] => 07938091 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-05-10 [patent_title] => 'Camshaft and camshaft manufacturing method' [patent_app_type] => utility [patent_app_number] => 12/268736 [patent_app_country] => US [patent_app_date] => 2008-11-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4862 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 318 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/938/07938091.pdf [firstpage_image] =>[orig_patent_app_number] => 12268736 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/268736
Camshaft and camshaft manufacturing method Nov 10, 2008 Issued
Array ( [id] => 4464432 [patent_doc_number] => 07942123 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-05-17 [patent_title] => 'Variable valve system for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 12/266165 [patent_app_country] => US [patent_app_date] => 2008-11-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 24 [patent_no_of_words] => 10758 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 285 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/942/07942123.pdf [firstpage_image] =>[orig_patent_app_number] => 12266165 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/266165
Variable valve system for internal combustion engine Nov 5, 2008 Issued
Array ( [id] => 6322967 [patent_doc_number] => 20100244589 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-09-30 [patent_title] => 'ELECTROMAGNETIC ACTUATING UNIT OF A SOLENOID VALVE, AND METHOD FOR THE PRODUCTION OF SUCH AN ACTUATING UNIT' [patent_app_type] => utility [patent_app_number] => 12/743088 [patent_app_country] => US [patent_app_date] => 2008-11-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2428 [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] => publications/A1/0244/20100244589.pdf [firstpage_image] =>[orig_patent_app_number] => 12743088 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/743088
Electromagnetic actuating unit of a solenoid valve, and method for the production of such an actuating unit Nov 3, 2008 Issued
Array ( [id] => 5326958 [patent_doc_number] => 20090107435 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-04-30 [patent_title] => 'Lubricating System for Valve Operating System' [patent_app_type] => utility [patent_app_number] => 12/257139 [patent_app_country] => US [patent_app_date] => 2008-10-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 6517 [patent_no_of_claims] => 8 [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/A1/0107/20090107435.pdf [firstpage_image] =>[orig_patent_app_number] => 12257139 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/257139
Lubricating system for valve operating system Oct 22, 2008 Issued
Array ( [id] => 8856697 [patent_doc_number] => 08459220 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-06-11 [patent_title] => 'Concentric phaser camshaft and a method of manufacture thereof' [patent_app_type] => utility [patent_app_number] => 12/738204 [patent_app_country] => US [patent_app_date] => 2008-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 3347 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12738204 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/738204
Concentric phaser camshaft and a method of manufacture thereof Oct 13, 2008 Issued
Array ( [id] => 6338933 [patent_doc_number] => 20100083922 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-04-08 [patent_title] => 'VARYING THE PHASE AND LIFT OF A ROCKER ARM ON A CAMSHAFT ACTUATING A VALVE OR INJECTOR' [patent_app_type] => utility [patent_app_number] => 12/247105 [patent_app_country] => US [patent_app_date] => 2008-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 2588 [patent_no_of_claims] => 52 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0083/20100083922.pdf [firstpage_image] =>[orig_patent_app_number] => 12247105 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/247105
Varying the phase and lift of a rocker arm on a camshaft actuating a valve or injector Oct 6, 2008 Issued
Array ( [id] => 5541800 [patent_doc_number] => 20090151677 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-18 [patent_title] => 'VARIABLE VALVE LIFT APPARATUS' [patent_app_type] => utility [patent_app_number] => 12/243166 [patent_app_country] => US [patent_app_date] => 2008-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 1411 [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] => publications/A1/0151/20090151677.pdf [firstpage_image] =>[orig_patent_app_number] => 12243166 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/243166
Variable valve lift apparatus Sep 30, 2008 Issued
Array ( [id] => 5505016 [patent_doc_number] => 20090078223 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-03-26 [patent_title] => 'VARIABLE VALVE SYSTEM OF INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 12/208017 [patent_app_country] => US [patent_app_date] => 2008-09-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 9366 [patent_no_of_claims] => 20 [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/A1/0078/20090078223.pdf [firstpage_image] =>[orig_patent_app_number] => 12208017 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/208017
Variable valve system of internal combustion engine Sep 9, 2008 Issued
Array ( [id] => 6552136 [patent_doc_number] => 20100059005 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-03-11 [patent_title] => 'Method and apparatus for adjusting variable valve lift' [patent_app_type] => utility [patent_app_number] => 12/231919 [patent_app_country] => US [patent_app_date] => 2008-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 1519 [patent_no_of_claims] => 8 [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/A1/0059/20100059005.pdf [firstpage_image] =>[orig_patent_app_number] => 12231919 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/231919
Method and apparatus for adjusting variable valve lift Sep 7, 2008 Abandoned
Array ( [id] => 6378219 [patent_doc_number] => 20100175649 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-07-15 [patent_title] => 'VALVE OPENING/CLOSING TIMING CONTROL APPARATUS' [patent_app_type] => utility [patent_app_number] => 12/602605 [patent_app_country] => US [patent_app_date] => 2008-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 9003 [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/A1/0175/20100175649.pdf [firstpage_image] =>[orig_patent_app_number] => 12602605 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/602605
Valve opening/closing timing control apparatus Sep 7, 2008 Issued
Array ( [id] => 4435015 [patent_doc_number] => 07926458 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-04-19 [patent_title] => 'Lubricating device' [patent_app_type] => utility [patent_app_number] => 12/202636 [patent_app_country] => US [patent_app_date] => 2008-09-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 4397 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/926/07926458.pdf [firstpage_image] =>[orig_patent_app_number] => 12202636 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/202636
Lubricating device Sep 1, 2008 Issued
Array ( [id] => 4480443 [patent_doc_number] => 07882813 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-02-08 [patent_title] => 'Adjustment device for adjusting the relative rotational angle position of a camshaft in relation to a crankshaft of an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 12/200283 [patent_app_country] => US [patent_app_date] => 2008-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 2621 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/882/07882813.pdf [firstpage_image] =>[orig_patent_app_number] => 12200283 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/200283
Adjustment device for adjusting the relative rotational angle position of a camshaft in relation to a crankshaft of an internal combustion engine Aug 27, 2008 Issued
Array ( [id] => 4530309 [patent_doc_number] => 07874274 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-01-25 [patent_title] => 'Apparatus for the variable setting of control times of gas-exchange valves of an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 12/199899 [patent_app_country] => US [patent_app_date] => 2008-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 6559 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/874/07874274.pdf [firstpage_image] =>[orig_patent_app_number] => 12199899 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/199899
Apparatus for the variable setting of control times of gas-exchange valves of an internal combustion engine Aug 27, 2008 Issued
Array ( [id] => 5333622 [patent_doc_number] => 20090050086 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-02-26 [patent_title] => 'VARIABLE VALVE DRIVING APPARATUS OF INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 12/194867 [patent_app_country] => US [patent_app_date] => 2008-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 7462 [patent_no_of_claims] => 25 [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/A1/0050/20090050086.pdf [firstpage_image] =>[orig_patent_app_number] => 12194867 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/194867
VARIABLE VALVE DRIVING APPARATUS OF INTERNAL COMBUSTION ENGINE Aug 19, 2008 Abandoned
Array ( [id] => 4607277 [patent_doc_number] => 07992530 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-08-09 [patent_title] => 'Continuous variable valve lift device' [patent_app_type] => utility [patent_app_number] => 12/193408 [patent_app_country] => US [patent_app_date] => 2008-08-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3357 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/992/07992530.pdf [firstpage_image] =>[orig_patent_app_number] => 12193408 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/193408
Continuous variable valve lift device Aug 17, 2008 Issued
Array ( [id] => 8396679 [patent_doc_number] => 08267057 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-09-18 [patent_title] => 'Continuously variable valve lift for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 12/192598 [patent_app_country] => US [patent_app_date] => 2008-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 23 [patent_no_of_words] => 6013 [patent_no_of_claims] => 37 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12192598 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/192598
Continuously variable valve lift for internal combustion engine Aug 14, 2008 Issued
Array ( [id] => 1409 [patent_doc_number] => 07814875 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-10-19 [patent_title] => 'Stroke adjusting device for valves of a combustion engine' [patent_app_type] => utility [patent_app_number] => 12/191354 [patent_app_country] => US [patent_app_date] => 2008-08-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 4411 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/814/07814875.pdf [firstpage_image] =>[orig_patent_app_number] => 12191354 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/191354
Stroke adjusting device for valves of a combustion engine Aug 13, 2008 Issued
Array ( [id] => 5581890 [patent_doc_number] => 20090101092 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-04-23 [patent_title] => 'VARIABLE DISPLACEMENT PUMP, VALVE TIMING CONTROL DEVICE USING THE VARIABLE DISPLACEMENT PUMP, AND VALVE TIMING CONTROL SYSTEM USING THE VARIABLE DISPLACEMENT PUMP, FOR USE IN INTERNAL COMBUSTION ENGINES' [patent_app_type] => utility [patent_app_number] => 12/187726 [patent_app_country] => US [patent_app_date] => 2008-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 13140 [patent_no_of_claims] => 20 [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/A1/0101/20090101092.pdf [firstpage_image] =>[orig_patent_app_number] => 12187726 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/187726
Variable displacement pump, valve timing control device using the variable displacement pump, and valve timing control system using the variable displacement pump, for use in internal combustion engines Aug 6, 2008 Issued
Array ( [id] => 5438683 [patent_doc_number] => 20090090322 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-04-09 [patent_title] => 'VARIABLE VALVE TIMING CONTROL APPARATUS OF INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 12/187738 [patent_app_country] => US [patent_app_date] => 2008-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 14433 [patent_no_of_claims] => 24 [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/A1/0090/20090090322.pdf [firstpage_image] =>[orig_patent_app_number] => 12187738 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/187738
Variable valve timing control apparatus of internal combustion engine Aug 6, 2008 Issued
Array ( [id] => 5357181 [patent_doc_number] => 20090031975 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-02-05 [patent_title] => 'INNER LEVER FOR A SWITCHABLE FINGER LEVER OF A VALVE TRAIN OF AN INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 12/185187 [patent_app_country] => US [patent_app_date] => 2008-08-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1528 [patent_no_of_claims] => 9 [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/A1/0031/20090031975.pdf [firstpage_image] =>[orig_patent_app_number] => 12185187 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/185187
Inner lever for a switchable finger lever of a valve train of an internal combustion engine Aug 3, 2008 Issued
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