Search

Ching Chang

Examiner (ID: 5925, Phone: (571)272-4857 , Office: P/3748 )

Most Active Art Unit
3748
Art Unit(s)
3746, 3748
Total Applications
1871
Issued Applications
1700
Pending Applications
11
Abandoned Applications
170

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 6331668 [patent_doc_number] => 20100018481 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-01-28 [patent_title] => 'VALVE CONTROL SYSTEM WITH MALFUNCTION DETECTION' [patent_app_type] => utility [patent_app_number] => 12/441675 [patent_app_country] => US [patent_app_date] => 2007-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1765 [patent_no_of_claims] => 7 [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/A1/0018/20100018481.pdf [firstpage_image] =>[orig_patent_app_number] => 12441675 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/441675
Valve control system with malfunction detection Sep 18, 2007 Issued
Array ( [id] => 4617529 [patent_doc_number] => 07997241 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-08-16 [patent_title] => 'Spark ignition type internal combustion engine' [patent_app_type] => utility [patent_app_number] => 12/441599 [patent_app_country] => US [patent_app_date] => 2007-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 30 [patent_no_of_words] => 12353 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/997/07997241.pdf [firstpage_image] =>[orig_patent_app_number] => 12441599 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/441599
Spark ignition type internal combustion engine Sep 18, 2007 Issued
Array ( [id] => 4537965 [patent_doc_number] => 07819095 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-10-26 [patent_title] => 'Electronic valve system' [patent_app_type] => utility [patent_app_number] => 11/898848 [patent_app_country] => US [patent_app_date] => 2007-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 3757 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/819/07819095.pdf [firstpage_image] =>[orig_patent_app_number] => 11898848 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/898848
Electronic valve system Sep 16, 2007 Issued
Array ( [id] => 215979 [patent_doc_number] => 07610884 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-11-03 [patent_title] => 'Valve timing control system' [patent_app_type] => utility [patent_app_number] => 11/854337 [patent_app_country] => US [patent_app_date] => 2007-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 27 [patent_no_of_words] => 12241 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 850 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/610/07610884.pdf [firstpage_image] =>[orig_patent_app_number] => 11854337 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/854337
Valve timing control system Sep 11, 2007 Issued
Array ( [id] => 333001 [patent_doc_number] => 07506621 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-03-24 [patent_title] => 'Valve timing control system' [patent_app_type] => utility [patent_app_number] => 11/854156 [patent_app_country] => US [patent_app_date] => 2007-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 10635 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 418 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/506/07506621.pdf [firstpage_image] =>[orig_patent_app_number] => 11854156 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/854156
Valve timing control system Sep 11, 2007 Issued
Array ( [id] => 333002 [patent_doc_number] => 07506622 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-03-24 [patent_title] => 'Valve timing control system' [patent_app_type] => utility [patent_app_number] => 11/854249 [patent_app_country] => US [patent_app_date] => 2007-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 25 [patent_no_of_words] => 13859 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 637 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/506/07506622.pdf [firstpage_image] =>[orig_patent_app_number] => 11854249 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/854249
Valve timing control system Sep 11, 2007 Issued
Array ( [id] => 4468501 [patent_doc_number] => 07866286 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-01-11 [patent_title] => 'Method for valve seating control for an electro-hydraulic engine valve' [patent_app_type] => utility [patent_app_number] => 11/851446 [patent_app_country] => US [patent_app_date] => 2007-09-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4087 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/866/07866286.pdf [firstpage_image] =>[orig_patent_app_number] => 11851446 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/851446
Method for valve seating control for an electro-hydraulic engine valve Sep 6, 2007 Issued
Array ( [id] => 6493004 [patent_doc_number] => 20100012063 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-01-21 [patent_title] => 'CAM CAP AND OIL PASSAGE CONNECTION STRUCTURE' [patent_app_type] => utility [patent_app_number] => 12/438815 [patent_app_country] => US [patent_app_date] => 2007-09-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 6987 [patent_no_of_claims] => 7 [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/A1/0012/20100012063.pdf [firstpage_image] =>[orig_patent_app_number] => 12438815 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/438815
Cam cap and oil passage connection structure Sep 3, 2007 Issued
Array ( [id] => 7525922 [patent_doc_number] => 08042509 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-10-25 [patent_title] => 'Cam cap' [patent_app_type] => utility [patent_app_number] => 12/375536 [patent_app_country] => US [patent_app_date] => 2007-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 5580 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 258 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/042/08042509.pdf [firstpage_image] =>[orig_patent_app_number] => 12375536 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/375536
Cam cap Aug 30, 2007 Issued
Array ( [id] => 223749 [patent_doc_number] => 07603973 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-10-20 [patent_title] => 'Variable mechanical valve control for an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/897921 [patent_app_country] => US [patent_app_date] => 2007-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 23 [patent_no_of_words] => 7834 [patent_no_of_claims] => 15 [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] => patents/07/603/07603973.pdf [firstpage_image] =>[orig_patent_app_number] => 11897921 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/897921
Variable mechanical valve control for an internal combustion engine Aug 29, 2007 Issued
Array ( [id] => 5400574 [patent_doc_number] => 20090235887 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-09-24 [patent_title] => 'Roller bearing, camshaft support structure, and internal combustion engine' [patent_app_type] => utility [patent_app_number] => 12/310676 [patent_app_country] => US [patent_app_date] => 2007-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 27 [patent_figures_cnt] => 27 [patent_no_of_words] => 22742 [patent_no_of_claims] => 23 [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/A1/0235/20090235887.pdf [firstpage_image] =>[orig_patent_app_number] => 12310676 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/310676
Roller bearing, camshaft support structure, and internal combustion engine Aug 29, 2007 Issued
Array ( [id] => 4642927 [patent_doc_number] => 08020527 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-09-20 [patent_title] => 'Variable valve timing system' [patent_app_type] => utility [patent_app_number] => 12/438955 [patent_app_country] => US [patent_app_date] => 2007-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 15 [patent_no_of_words] => 9182 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 297 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/020/08020527.pdf [firstpage_image] =>[orig_patent_app_number] => 12438955 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/438955
Variable valve timing system Aug 28, 2007 Issued
Array ( [id] => 4511990 [patent_doc_number] => 07938088 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-05-10 [patent_title] => 'Variable valve timing system' [patent_app_type] => utility [patent_app_number] => 12/159987 [patent_app_country] => US [patent_app_date] => 2007-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 18 [patent_no_of_words] => 11668 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 326 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/938/07938088.pdf [firstpage_image] =>[orig_patent_app_number] => 12159987 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/159987
Variable valve timing system Aug 28, 2007 Issued
Array ( [id] => 245980 [patent_doc_number] => 07584729 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-09-08 [patent_title] => 'Variable valve timing controller for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/896120 [patent_app_country] => US [patent_app_date] => 2007-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 4358 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 239 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/584/07584729.pdf [firstpage_image] =>[orig_patent_app_number] => 11896120 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/896120
Variable valve timing controller for internal combustion engine Aug 28, 2007 Issued
Array ( [id] => 4549665 [patent_doc_number] => 07845327 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-12-07 [patent_title] => 'Hydraulic lash adjuster with damping device' [patent_app_type] => utility [patent_app_number] => 11/840981 [patent_app_country] => US [patent_app_date] => 2007-08-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 3686 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/845/07845327.pdf [firstpage_image] =>[orig_patent_app_number] => 11840981 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/840981
Hydraulic lash adjuster with damping device Aug 18, 2007 Issued
Array ( [id] => 5444361 [patent_doc_number] => 20090045587 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-02-19 [patent_title] => 'Camshaft phaser wiper seal' [patent_app_type] => utility [patent_app_number] => 11/893529 [patent_app_country] => US [patent_app_date] => 2007-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3633 [patent_no_of_claims] => 19 [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/A1/0045/20090045587.pdf [firstpage_image] =>[orig_patent_app_number] => 11893529 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/893529
Camshaft phaser wiper seal Aug 15, 2007 Abandoned
Array ( [id] => 5468705 [patent_doc_number] => 20090241871 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-10-01 [patent_title] => 'ASSEMBLED CAMSHAFT AND INTERNAL COMBUSTION ENGINE PROVIDED WITH ASSEMBLED CAMSHAFT' [patent_app_type] => utility [patent_app_number] => 12/310386 [patent_app_country] => US [patent_app_date] => 2007-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 8359 [patent_no_of_claims] => 7 [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/A1/0241/20090241871.pdf [firstpage_image] =>[orig_patent_app_number] => 12310386 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/310386
ASSEMBLED CAMSHAFT AND INTERNAL COMBUSTION ENGINE PROVIDED WITH ASSEMBLED CAMSHAFT Aug 15, 2007 Abandoned
Array ( [id] => 7513786 [patent_doc_number] => 08037853 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-10-18 [patent_title] => 'Internal combustion engine with electronic valve actuators and control system therefor' [patent_app_type] => utility [patent_app_number] => 11/837505 [patent_app_country] => US [patent_app_date] => 2007-08-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 34 [patent_figures_cnt] => 55 [patent_no_of_words] => 16594 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 239 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/037/08037853.pdf [firstpage_image] =>[orig_patent_app_number] => 11837505 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/837505
Internal combustion engine with electronic valve actuators and control system therefor Aug 10, 2007 Issued
Array ( [id] => 11346 [patent_doc_number] => 07802547 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-09-28 [patent_title] => 'Internal combustion engine having variable valve operating device' [patent_app_type] => utility [patent_app_number] => 11/889147 [patent_app_country] => US [patent_app_date] => 2007-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 14 [patent_no_of_words] => 9929 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/802/07802547.pdf [firstpage_image] =>[orig_patent_app_number] => 11889147 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/889147
Internal combustion engine having variable valve operating device Aug 8, 2007 Issued
Array ( [id] => 4660135 [patent_doc_number] => 20080251042 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-10-16 [patent_title] => 'Device for Controlling Phase of Cam Shaft in Internal Combustion Engine and Phase Controlling device' [patent_app_type] => utility [patent_app_number] => 11/834969 [patent_app_country] => US [patent_app_date] => 2007-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 13016 [patent_no_of_claims] => 9 [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/A1/0251/20080251042.pdf [firstpage_image] =>[orig_patent_app_number] => 11834969 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/834969
Device for Controlling Phase of Cam Shaft in Internal Combustion Engine and Phase Controlling device Aug 6, 2007 Abandoned
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