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] => 815532 [patent_doc_number] => 07409934 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-08-12 [patent_title] => 'System for variable valvetrain actuation' [patent_app_type] => utility [patent_app_number] => 11/546858 [patent_app_country] => US [patent_app_date] => 2006-10-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 37 [patent_no_of_words] => 7675 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/409/07409934.pdf [firstpage_image] =>[orig_patent_app_number] => 11546858 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/546858
System for variable valvetrain actuation Oct 11, 2006 Issued
Array ( [id] => 165275 [patent_doc_number] => 07665431 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-02-23 [patent_title] => 'Drive piston assembly for a valve actuator assembly' [patent_app_type] => utility [patent_app_number] => 11/548297 [patent_app_country] => US [patent_app_date] => 2006-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 4221 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/665/07665431.pdf [firstpage_image] =>[orig_patent_app_number] => 11548297 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/548297
Drive piston assembly for a valve actuator assembly Oct 10, 2006 Issued
Array ( [id] => 561597 [patent_doc_number] => 07455040 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-11-25 [patent_title] => 'Hydraulic circuit for switchable cam followers' [patent_app_type] => utility [patent_app_number] => 11/545198 [patent_app_country] => US [patent_app_date] => 2006-10-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 2787 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/455/07455040.pdf [firstpage_image] =>[orig_patent_app_number] => 11545198 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/545198
Hydraulic circuit for switchable cam followers Oct 9, 2006 Issued
Array ( [id] => 4690612 [patent_doc_number] => 20080083382 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-04-10 [patent_title] => 'PUSHROD ENGINE WITH MULTIPLE INDEPENDENT LASH ADJUSTERS FOR EACH PUSHROD' [patent_app_type] => utility [patent_app_number] => 11/539238 [patent_app_country] => US [patent_app_date] => 2006-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2931 [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/A1/0083/20080083382.pdf [firstpage_image] =>[orig_patent_app_number] => 11539238 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/539238
Pushrod engine with multiple independent lash adjusters for each pushrod Oct 5, 2006 Issued
Array ( [id] => 4967681 [patent_doc_number] => 20070107683 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-05-17 [patent_title] => 'Engine control unit and method for operating such engine control unit' [patent_app_type] => utility [patent_app_number] => 11/542066 [patent_app_country] => US [patent_app_date] => 2006-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3856 [patent_no_of_claims] => 10 [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/A1/0107/20070107683.pdf [firstpage_image] =>[orig_patent_app_number] => 11542066 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/542066
Engine control unit and method for operating such engine control unit Oct 2, 2006 Abandoned
Array ( [id] => 4941022 [patent_doc_number] => 20080078343 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-04-03 [patent_title] => 'Bias spring arbor for a camshaft phaser' [patent_app_type] => utility [patent_app_number] => 11/540152 [patent_app_country] => US [patent_app_date] => 2006-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1684 [patent_no_of_claims] => 7 [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/A1/0078/20080078343.pdf [firstpage_image] =>[orig_patent_app_number] => 11540152 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/540152
Bias spring arbor for a camshaft phaser Sep 28, 2006 Issued
Array ( [id] => 924646 [patent_doc_number] => 07316213 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-01-08 [patent_title] => 'Valve timing control device and control method for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/528346 [patent_app_country] => US [patent_app_date] => 2006-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 9136 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/316/07316213.pdf [firstpage_image] =>[orig_patent_app_number] => 11528346 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/528346
Valve timing control device and control method for internal combustion engine Sep 27, 2006 Issued
Array ( [id] => 1406 [patent_doc_number] => 07814873 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-10-19 [patent_title] => 'Variable valve operating device and valve opening amount adjustment method' [patent_app_type] => utility [patent_app_number] => 11/988487 [patent_app_country] => US [patent_app_date] => 2006-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 9728 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/814/07814873.pdf [firstpage_image] =>[orig_patent_app_number] => 11988487 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/988487
Variable valve operating device and valve opening amount adjustment method Sep 21, 2006 Issued
Array ( [id] => 5554741 [patent_doc_number] => 20090266318 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-10-29 [patent_title] => 'SLIDING MODE CONTROL APPARATUS AND ADJUSTING METHOD' [patent_app_type] => utility [patent_app_number] => 12/067397 [patent_app_country] => US [patent_app_date] => 2006-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 23 [patent_no_of_words] => 15778 [patent_no_of_claims] => 27 [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/A1/0266/20090266318.pdf [firstpage_image] =>[orig_patent_app_number] => 12067397 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/067397
Sliding mode control apparatus and adjusting method Sep 21, 2006 Issued
Array ( [id] => 5133059 [patent_doc_number] => 20070074686 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-04-05 [patent_title] => 'Engine with intake valves operated by camshaft' [patent_app_type] => utility [patent_app_number] => 11/522427 [patent_app_country] => US [patent_app_date] => 2006-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5867 [patent_no_of_claims] => 6 [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/A1/0074/20070074686.pdf [firstpage_image] =>[orig_patent_app_number] => 11522427 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/522427
Engine with intake valves operated by camshaft Sep 17, 2006 Issued
Array ( [id] => 5053617 [patent_doc_number] => 20070056537 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-03-15 [patent_title] => 'Control apparatus for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/519937 [patent_app_country] => US [patent_app_date] => 2006-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 6581 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0056/20070056537.pdf [firstpage_image] =>[orig_patent_app_number] => 11519937 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/519937
Control apparatus for internal combustion engine Sep 12, 2006 Abandoned
Array ( [id] => 4991490 [patent_doc_number] => 20070006834 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-01-11 [patent_title] => 'Camshaft and method for producing a camshaft' [patent_app_type] => utility [patent_app_number] => 11/518567 [patent_app_country] => US [patent_app_date] => 2006-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 7830 [patent_no_of_claims] => 14 [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/A1/0006/20070006834.pdf [firstpage_image] =>[orig_patent_app_number] => 11518567 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/518567
Camshaft and method for producing a camshaft Sep 7, 2006 Issued
Array ( [id] => 851354 [patent_doc_number] => 07377242 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-05-27 [patent_title] => 'Valve timing adjusting apparatus' [patent_app_type] => utility [patent_app_number] => 11/515247 [patent_app_country] => US [patent_app_date] => 2006-09-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5111 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 220 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/377/07377242.pdf [firstpage_image] =>[orig_patent_app_number] => 11515247 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/515247
Valve timing adjusting apparatus Sep 4, 2006 Issued
Array ( [id] => 4882955 [patent_doc_number] => 20080257287 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-10-23 [patent_title] => 'Method and Device for Determining a Switchover Condition in Order to Initiate a Valve Lift Changeover in an Internal Combustion Engine' [patent_app_type] => utility [patent_app_number] => 12/067217 [patent_app_country] => US [patent_app_date] => 2006-09-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5052 [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/A1/0257/20080257287.pdf [firstpage_image] =>[orig_patent_app_number] => 12067217 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/067217
Method and device for determining a switchover condition in order to initiate a valve lift changeover in an internal combustion engine Sep 3, 2006 Issued
Array ( [id] => 574307 [patent_doc_number] => 07438031 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-10-21 [patent_title] => 'Layout structure of hydraulic control valve for valve train in internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/511329 [patent_app_country] => US [patent_app_date] => 2006-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 9371 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/438/07438031.pdf [firstpage_image] =>[orig_patent_app_number] => 11511329 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/511329
Layout structure of hydraulic control valve for valve train in internal combustion engine Aug 28, 2006 Issued
Array ( [id] => 497449 [patent_doc_number] => 07201125 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-04-10 [patent_title] => 'Valve train for an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/466157 [patent_app_country] => US [patent_app_date] => 2006-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3641 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 229 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/201/07201125.pdf [firstpage_image] =>[orig_patent_app_number] => 11466157 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/466157
Valve train for an internal combustion engine Aug 21, 2006 Issued
Array ( [id] => 802290 [patent_doc_number] => 07421990 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-09-09 [patent_title] => 'Harmonic drive camshaft phaser' [patent_app_type] => utility [patent_app_number] => 11/507758 [patent_app_country] => US [patent_app_date] => 2006-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 3429 [patent_no_of_claims] => 10 [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] => patents/07/421/07421990.pdf [firstpage_image] =>[orig_patent_app_number] => 11507758 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/507758
Harmonic drive camshaft phaser Aug 21, 2006 Issued
Array ( [id] => 4996947 [patent_doc_number] => 20070039581 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-02-22 [patent_title] => 'Phaser for controlling the timing between a camshaft and timing gear' [patent_app_type] => utility [patent_app_number] => 11/507295 [patent_app_country] => US [patent_app_date] => 2006-08-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2578 [patent_no_of_claims] => 10 [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/A1/0039/20070039581.pdf [firstpage_image] =>[orig_patent_app_number] => 11507295 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/507295
Phaser for controlling the timing between a camshaft and timing gear Aug 20, 2006 Abandoned
Array ( [id] => 835394 [patent_doc_number] => 07392777 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-07-01 [patent_title] => 'Variable valve train of an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/505667 [patent_app_country] => US [patent_app_date] => 2006-08-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2578 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 291 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/392/07392777.pdf [firstpage_image] =>[orig_patent_app_number] => 11505667 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/505667
Variable valve train of an internal combustion engine Aug 16, 2006 Issued
Array ( [id] => 375976 [patent_doc_number] => 07311074 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-12-25 [patent_title] => 'Guide rail for valve tappet of an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/505587 [patent_app_country] => US [patent_app_date] => 2006-08-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 3185 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 217 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/311/07311074.pdf [firstpage_image] =>[orig_patent_app_number] => 11505587 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/505587
Guide rail for valve tappet of an internal combustion engine Aug 16, 2006 Issued
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