Search

Ching Chang

Examiner (ID: 13382, 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] => 4480442 [patent_doc_number] => 07882812 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-02-08 [patent_title] => 'Valvetrain mechanism of engine' [patent_app_type] => utility [patent_app_number] => 12/184619 [patent_app_country] => US [patent_app_date] => 2008-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 23 [patent_no_of_words] => 3743 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 189 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/882/07882812.pdf [firstpage_image] =>[orig_patent_app_number] => 12184619 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/184619
Valvetrain mechanism of engine Jul 31, 2008 Issued
Array ( [id] => 5541798 [patent_doc_number] => 20090151675 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-18 [patent_title] => 'CONTINUOUS VARIABLE VALVE LIFT APPARATUS' [patent_app_type] => utility [patent_app_number] => 12/184027 [patent_app_country] => US [patent_app_date] => 2008-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 1925 [patent_no_of_claims] => 19 [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/A1/0151/20090151675.pdf [firstpage_image] =>[orig_patent_app_number] => 12184027 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/184027
Continuous variable valve lift apparatus Jul 30, 2008 Issued
Array ( [id] => 5357183 [patent_doc_number] => 20090031977 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-02-05 [patent_title] => 'LOW PROFILE VALVE LIFTER ASSEMBLY' [patent_app_type] => utility [patent_app_number] => 12/183348 [patent_app_country] => US [patent_app_date] => 2008-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 1888 [patent_no_of_claims] => 16 [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/A1/0031/20090031977.pdf [firstpage_image] =>[orig_patent_app_number] => 12183348 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/183348
Low profile valve lifter assembly Jul 30, 2008 Issued
Array ( [id] => 4549658 [patent_doc_number] => 07845326 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-12-07 [patent_title] => 'Variable valve lift apparatus' [patent_app_type] => utility [patent_app_number] => 12/184057 [patent_app_country] => US [patent_app_date] => 2008-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 1947 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/845/07845326.pdf [firstpage_image] =>[orig_patent_app_number] => 12184057 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/184057
Variable valve lift apparatus Jul 30, 2008 Issued
Array ( [id] => 4439987 [patent_doc_number] => 07861680 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-01-04 [patent_title] => 'Pushrod engine with multiple independent lash adjusters for each pushrod' [patent_app_type] => utility [patent_app_number] => 12/183230 [patent_app_country] => US [patent_app_date] => 2008-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2976 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/861/07861680.pdf [firstpage_image] =>[orig_patent_app_number] => 12183230 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/183230
Pushrod engine with multiple independent lash adjusters for each pushrod Jul 30, 2008 Issued
Array ( [id] => 5581889 [patent_doc_number] => 20090101091 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-04-23 [patent_title] => 'VARIABLE VALVE LIFT TRANSITION CONTROL METHODS AND SYSTEMS' [patent_app_type] => utility [patent_app_number] => 12/178989 [patent_app_country] => US [patent_app_date] => 2008-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3051 [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] => publications/A1/0101/20090101091.pdf [firstpage_image] =>[orig_patent_app_number] => 12178989 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/178989
Variable valve lift transition control methods and systems Jul 23, 2008 Issued
Array ( [id] => 8531494 [patent_doc_number] => 08307644 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-11-13 [patent_title] => 'Control device and control method for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 12/669681 [patent_app_country] => US [patent_app_date] => 2008-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 5287 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 213 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12669681 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/669681
Control device and control method for internal combustion engine Jul 16, 2008 Issued
Array ( [id] => 4488681 [patent_doc_number] => 07946265 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-05-24 [patent_title] => 'Valve timing adjuster' [patent_app_type] => utility [patent_app_number] => 12/170805 [patent_app_country] => US [patent_app_date] => 2008-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 12 [patent_no_of_words] => 5565 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 290 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/946/07946265.pdf [firstpage_image] =>[orig_patent_app_number] => 12170805 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/170805
Valve timing adjuster Jul 9, 2008 Issued
Array ( [id] => 5292939 [patent_doc_number] => 20090007865 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-01-08 [patent_title] => 'METHOD FOR ADJUSTING THE ROTATIONAL ANGLE POSITION OF THE CAMSHAFT OF A RECIPROCATING INTERNAL COMBUSTION ENGINE IN RELATION TO THE CRANKSHAFT' [patent_app_type] => utility [patent_app_number] => 12/169907 [patent_app_country] => US [patent_app_date] => 2008-07-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5646 [patent_no_of_claims] => 11 [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/A1/0007/20090007865.pdf [firstpage_image] =>[orig_patent_app_number] => 12169907 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/169907
Method for adjusting the rotational angle position of the camshaft of a reciprocating internal combustion engine in relation to the crankshaft Jul 8, 2008 Issued
Array ( [id] => 5306662 [patent_doc_number] => 20090013943 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-01-15 [patent_title] => 'Switchable support element for a valve train of an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 12/169125 [patent_app_country] => US [patent_app_date] => 2008-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 1929 [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/A1/0013/20090013943.pdf [firstpage_image] =>[orig_patent_app_number] => 12169125 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/169125
Switchable support element for a valve train of an internal combustion engine Jul 7, 2008 Issued
Array ( [id] => 5292937 [patent_doc_number] => 20090007863 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-01-08 [patent_title] => 'Motorcycle provided with valve-operating mechanism' [patent_app_type] => utility [patent_app_number] => 12/216148 [patent_app_country] => US [patent_app_date] => 2008-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 11130 [patent_no_of_claims] => 15 [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/A1/0007/20090007863.pdf [firstpage_image] =>[orig_patent_app_number] => 12216148 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/216148
Motorcycle provided with valve-operating mechanism Jun 29, 2008 Issued
Array ( [id] => 4556608 [patent_doc_number] => 07827950 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-11-09 [patent_title] => 'Valve cover assembly and method of construction' [patent_app_type] => utility [patent_app_number] => 12/146685 [patent_app_country] => US [patent_app_date] => 2008-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 11 [patent_no_of_words] => 3165 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/827/07827950.pdf [firstpage_image] =>[orig_patent_app_number] => 12146685 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/146685
Valve cover assembly and method of construction Jun 25, 2008 Issued
Array ( [id] => 5292940 [patent_doc_number] => 20090007866 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-01-08 [patent_title] => 'Control apparatus for internal combustion engine and control method therefor' [patent_app_type] => utility [patent_app_number] => 12/213191 [patent_app_country] => US [patent_app_date] => 2008-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 14767 [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/A1/0007/20090007866.pdf [firstpage_image] =>[orig_patent_app_number] => 12213191 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/213191
Control apparatus for internal combustion engine and control method therefor Jun 15, 2008 Issued
Array ( [id] => 108702 [patent_doc_number] => 07717072 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-05-18 [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] => 12/136832 [patent_app_country] => US [patent_app_date] => 2008-06-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 2624 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/717/07717072.pdf [firstpage_image] =>[orig_patent_app_number] => 12136832 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/136832
Adjustment device for adjusting the relative rotational angle position of a camshaft in relation to a crankshaft of an internal combustion engine Jun 10, 2008 Issued
Array ( [id] => 5292936 [patent_doc_number] => 20090007862 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-01-08 [patent_title] => 'VARIABLE VALVE ACTUATING APPARATUS FOR INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 12/131460 [patent_app_country] => US [patent_app_date] => 2008-06-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 11269 [patent_no_of_claims] => 12 [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/A1/0007/20090007862.pdf [firstpage_image] =>[orig_patent_app_number] => 12131460 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/131460
Variable valve actuating apparatus for internal combustion engine Jun 1, 2008 Issued
Array ( [id] => 8292647 [patent_doc_number] => 08220426 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-07-17 [patent_title] => 'Valve timing control device' [patent_app_type] => utility [patent_app_number] => 12/602842 [patent_app_country] => US [patent_app_date] => 2008-06-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 38 [patent_figures_cnt] => 41 [patent_no_of_words] => 27503 [patent_no_of_claims] => 32 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 244 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12602842 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/602842
Valve timing control device Jun 1, 2008 Issued
Array ( [id] => 4815898 [patent_doc_number] => 20080223157 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-09-18 [patent_title] => 'Helical cam device and method' [patent_app_type] => utility [patent_app_number] => 12/129382 [patent_app_country] => US [patent_app_date] => 2008-05-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4326 [patent_no_of_claims] => 17 [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/A1/0223/20080223157.pdf [firstpage_image] =>[orig_patent_app_number] => 12129382 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/129382
Helical cam device and method May 28, 2008 Issued
Array ( [id] => 4663993 [patent_doc_number] => 20080254900 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-10-16 [patent_title] => 'Axial lash control for a vane-type cam phaser' [patent_app_type] => utility [patent_app_number] => 12/152346 [patent_app_country] => US [patent_app_date] => 2008-05-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1795 [patent_no_of_claims] => 9 [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/A1/0254/20080254900.pdf [firstpage_image] =>[orig_patent_app_number] => 12152346 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/152346
Axial lash control for a vane-type cam phaser May 13, 2008 Abandoned
Array ( [id] => 4609784 [patent_doc_number] => 07987830 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-08-02 [patent_title] => 'Oil supply structure for continuous variable valve timing apparatus and cylinder head employing the same' [patent_app_type] => utility [patent_app_number] => 12/117588 [patent_app_country] => US [patent_app_date] => 2008-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1497 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/987/07987830.pdf [firstpage_image] =>[orig_patent_app_number] => 12117588 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/117588
Oil supply structure for continuous variable valve timing apparatus and cylinder head employing the same May 7, 2008 Issued
Array ( [id] => 6237677 [patent_doc_number] => 20100132644 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-06-03 [patent_title] => 'VARIABLE VALVE ACTUATING MECHANISM WITH SUMMATION CAM' [patent_app_type] => utility [patent_app_number] => 12/598475 [patent_app_country] => US [patent_app_date] => 2008-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2888 [patent_no_of_claims] => 17 [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/A1/0132/20100132644.pdf [firstpage_image] =>[orig_patent_app_number] => 12598475 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/598475
Variable valve actuating mechanism with summation cam May 7, 2008 Issued
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