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] => 4456725 [patent_doc_number] => 07878164 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-02-01 [patent_title] => 'Apparatus for preventing leakage across rotor vanes in a vane-type camshaft phaser' [patent_app_type] => utility [patent_app_number] => 12/151589 [patent_app_country] => US [patent_app_date] => 2008-05-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 13 [patent_no_of_words] => 2286 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/878/07878164.pdf [firstpage_image] =>[orig_patent_app_number] => 12151589 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/151589
Apparatus for preventing leakage across rotor vanes in a vane-type camshaft phaser May 6, 2008 Issued
Array ( [id] => 4848603 [patent_doc_number] => 20080314344 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-12-25 [patent_title] => 'CONTINUOUS VARIABLE VALVE LIFT APPARATUS' [patent_app_type] => utility [patent_app_number] => 12/108291 [patent_app_country] => US [patent_app_date] => 2008-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 7237 [patent_no_of_claims] => 32 [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/A1/0314/20080314344.pdf [firstpage_image] =>[orig_patent_app_number] => 12108291 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/108291
Continuous variable valve lift apparatus Apr 22, 2008 Issued
Array ( [id] => 4596282 [patent_doc_number] => 07975663 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-07-12 [patent_title] => 'Dual-equal cam phasing with variable overlap' [patent_app_type] => utility [patent_app_number] => 12/103356 [patent_app_country] => US [patent_app_date] => 2008-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 2283 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/975/07975663.pdf [firstpage_image] =>[orig_patent_app_number] => 12103356 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/103356
Dual-equal cam phasing with variable overlap Apr 14, 2008 Issued
Array ( [id] => 157168 [patent_doc_number] => 07673602 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-03-09 [patent_title] => 'Variable valve mechanism' [patent_app_type] => utility [patent_app_number] => 12/081089 [patent_app_country] => US [patent_app_date] => 2008-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 10 [patent_no_of_words] => 3588 [patent_no_of_claims] => 3 [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/07/673/07673602.pdf [firstpage_image] =>[orig_patent_app_number] => 12081089 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/081089
Variable valve mechanism Apr 9, 2008 Issued
Array ( [id] => 6347293 [patent_doc_number] => 20100071648 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-03-25 [patent_title] => 'LASH ADJUSTER' [patent_app_type] => utility [patent_app_number] => 12/595856 [patent_app_country] => US [patent_app_date] => 2008-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3010 [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/A1/0071/20100071648.pdf [firstpage_image] =>[orig_patent_app_number] => 12595856 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/595856
Lash adjuster Apr 9, 2008 Issued
Array ( [id] => 5418925 [patent_doc_number] => 20090145379 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-11 [patent_title] => 'VALVE SYSTEM' [patent_app_type] => utility [patent_app_number] => 12/098575 [patent_app_country] => US [patent_app_date] => 2008-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1364 [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/A1/0145/20090145379.pdf [firstpage_image] =>[orig_patent_app_number] => 12098575 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/098575
Valve system Apr 6, 2008 Issued
Array ( [id] => 4456728 [patent_doc_number] => 07878167 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-02-01 [patent_title] => 'Engine with round lobe' [patent_app_type] => utility [patent_app_number] => 12/080866 [patent_app_country] => US [patent_app_date] => 2008-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 13 [patent_no_of_words] => 5889 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/878/07878167.pdf [firstpage_image] =>[orig_patent_app_number] => 12080866 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/080866
Engine with round lobe Apr 6, 2008 Issued
Array ( [id] => 4537981 [patent_doc_number] => 07819099 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-10-26 [patent_title] => 'Rotary hydraulic coupling' [patent_app_type] => utility [patent_app_number] => 12/062667 [patent_app_country] => US [patent_app_date] => 2008-04-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 30 [patent_no_of_words] => 2399 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 234 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/819/07819099.pdf [firstpage_image] =>[orig_patent_app_number] => 12062667 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/062667
Rotary hydraulic coupling Apr 3, 2008 Issued
Array ( [id] => 7533545 [patent_doc_number] => 08047166 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-11-01 [patent_title] => 'Electric valve actuation system' [patent_app_type] => utility [patent_app_number] => 12/060899 [patent_app_country] => US [patent_app_date] => 2008-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 5701 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 163 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/047/08047166.pdf [firstpage_image] =>[orig_patent_app_number] => 12060899 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/060899
Electric valve actuation system Apr 1, 2008 Issued
Array ( [id] => 8150455 [patent_doc_number] => 08166935 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-05-01 [patent_title] => 'Control system of internal combustion engine' [patent_app_type] => utility [patent_app_number] => 12/594457 [patent_app_country] => US [patent_app_date] => 2008-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 10 [patent_no_of_words] => 7233 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/166/08166935.pdf [firstpage_image] =>[orig_patent_app_number] => 12594457 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/594457
Control system of internal combustion engine Mar 30, 2008 Issued
Array ( [id] => 5468709 [patent_doc_number] => 20090241875 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-10-01 [patent_title] => 'Apparatus and methods for continuous variable valve timing' [patent_app_type] => utility [patent_app_number] => 12/079449 [patent_app_country] => US [patent_app_date] => 2008-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 13518 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0241/20090241875.pdf [firstpage_image] =>[orig_patent_app_number] => 12079449 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/079449
Apparatus and methods for continuous variable valve timing Mar 25, 2008 Issued
Array ( [id] => 4542444 [patent_doc_number] => 07836858 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-11-23 [patent_title] => 'V-type engine and motorcycle incorporating same' [patent_app_type] => utility [patent_app_number] => 12/079347 [patent_app_country] => US [patent_app_date] => 2008-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 7257 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/836/07836858.pdf [firstpage_image] =>[orig_patent_app_number] => 12079347 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/079347
V-type engine and motorcycle incorporating same Mar 25, 2008 Issued
Array ( [id] => 4714001 [patent_doc_number] => 20080236523 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-10-02 [patent_title] => 'Multi-cylinder engine with cylinder pausing function' [patent_app_type] => utility [patent_app_number] => 12/079359 [patent_app_country] => US [patent_app_date] => 2008-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 7922 [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/A1/0236/20080236523.pdf [firstpage_image] =>[orig_patent_app_number] => 12079359 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/079359
Multi-cylinder engine with cylinder pausing function Mar 25, 2008 Issued
Array ( [id] => 4679101 [patent_doc_number] => 20080245327 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-10-09 [patent_title] => 'Valve train of an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 12/079058 [patent_app_country] => US [patent_app_date] => 2008-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3435 [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/A1/0245/20080245327.pdf [firstpage_image] =>[orig_patent_app_number] => 12079058 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/079058
Valve train of an internal combustion engine Mar 23, 2008 Issued
Array ( [id] => 5357179 [patent_doc_number] => 20090031973 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-02-05 [patent_title] => 'Engine equipped with adjustable valve timing mechanism' [patent_app_type] => utility [patent_app_number] => 12/076839 [patent_app_country] => US [patent_app_date] => 2008-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 4801 [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/A1/0031/20090031973.pdf [firstpage_image] =>[orig_patent_app_number] => 12076839 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/076839
Engine equipped with adjustable valve timing mechanism Mar 23, 2008 Issued
Array ( [id] => 4882961 [patent_doc_number] => 20080257293 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-10-23 [patent_title] => 'Connection device for connecting rocker, valve or injection assemblies in internal combustion engines' [patent_app_type] => utility [patent_app_number] => 12/077997 [patent_app_country] => US [patent_app_date] => 2008-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1244 [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/A1/0257/20080257293.pdf [firstpage_image] =>[orig_patent_app_number] => 12077997 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/077997
Connection device for connecting rocker, valve or injection assemblies in internal combustion engines Mar 23, 2008 Abandoned
Array ( [id] => 215980 [patent_doc_number] => 07610885 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-11-03 [patent_title] => 'Variable drive for camshafts' [patent_app_type] => utility [patent_app_number] => 12/053179 [patent_app_country] => US [patent_app_date] => 2008-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2189 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 297 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/610/07610885.pdf [firstpage_image] =>[orig_patent_app_number] => 12053179 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/053179
Variable drive for camshafts Mar 20, 2008 Issued
Array ( [id] => 5292941 [patent_doc_number] => 20090007867 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-01-08 [patent_title] => 'Variable valve train for an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 12/076719 [patent_app_country] => US [patent_app_date] => 2008-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 8243 [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/A1/0007/20090007867.pdf [firstpage_image] =>[orig_patent_app_number] => 12076719 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/076719
Variable valve train for an internal combustion engine Mar 20, 2008 Issued
Array ( [id] => 4855514 [patent_doc_number] => 20080264364 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-10-30 [patent_title] => 'VARIABLE CAMSHAFT TIMING SYSTEM' [patent_app_type] => utility [patent_app_number] => 12/047536 [patent_app_country] => US [patent_app_date] => 2008-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 1891 [patent_no_of_claims] => 14 [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/A1/0264/20080264364.pdf [firstpage_image] =>[orig_patent_app_number] => 12047536 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/047536
Variable camshaft timing system Mar 12, 2008 Issued
Array ( [id] => 4530306 [patent_doc_number] => 07874273 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-01-25 [patent_title] => 'Camshaft adjuster and method for setting a limiting position for a camshaft adjuster' [patent_app_type] => utility [patent_app_number] => 12/047387 [patent_app_country] => US [patent_app_date] => 2008-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3895 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/874/07874273.pdf [firstpage_image] =>[orig_patent_app_number] => 12047387 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/047387
Camshaft adjuster and method for setting a limiting position for a camshaft adjuster Mar 12, 2008 Issued
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