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] => 6292074 [patent_doc_number] => 20100064995 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-03-18 [patent_title] => 'Engine valve operating system' [patent_app_type] => utility [patent_app_number] => 11/921078 [patent_app_country] => US [patent_app_date] => 2006-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 6156 [patent_no_of_claims] => 4 [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/A1/0064/20100064995.pdf [firstpage_image] =>[orig_patent_app_number] => 11921078 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/921078
Engine valve operating system Jun 19, 2006 Issued
Array ( [id] => 5030773 [patent_doc_number] => 20070095312 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-05-03 [patent_title] => 'Variable lost motion valve actuator and method' [patent_app_type] => utility [patent_app_number] => 11/450286 [patent_app_country] => US [patent_app_date] => 2006-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 61 [patent_figures_cnt] => 61 [patent_no_of_words] => 28717 [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/A1/0095/20070095312.pdf [firstpage_image] =>[orig_patent_app_number] => 11450286 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/450286
Variable lost motion valve actuator and method Jun 11, 2006 Issued
Array ( [id] => 5162353 [patent_doc_number] => 20070283933 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-12-13 [patent_title] => 'System and Method of Controlling Fuel Delivery During Positive Valve Overlap Operation of an Engine Start' [patent_app_type] => utility [patent_app_number] => 11/423682 [patent_app_country] => US [patent_app_date] => 2006-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5683 [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/A1/0283/20070283933.pdf [firstpage_image] =>[orig_patent_app_number] => 11423682 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/423682
System and method of controlling fuel delivery during positive valve overlap operation of an engine start Jun 11, 2006 Issued
Array ( [id] => 406843 [patent_doc_number] => 07284515 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-10-23 [patent_title] => 'Variable valve apparatus of internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/448679 [patent_app_country] => US [patent_app_date] => 2006-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 15 [patent_no_of_words] => 7728 [patent_no_of_claims] => 6 [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/07/284/07284515.pdf [firstpage_image] =>[orig_patent_app_number] => 11448679 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/448679
Variable valve apparatus of internal combustion engine Jun 7, 2006 Issued
Array ( [id] => 527405 [patent_doc_number] => 07168404 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-01-30 [patent_title] => 'Variable valve apparatus of internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/448819 [patent_app_country] => US [patent_app_date] => 2006-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 8033 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 237 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/168/07168404.pdf [firstpage_image] =>[orig_patent_app_number] => 11448819 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/448819
Variable valve apparatus of internal combustion engine Jun 7, 2006 Issued
Array ( [id] => 8980162 [patent_doc_number] => 08511269 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-08-20 [patent_title] => 'Camshaft system for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/422702 [patent_app_country] => US [patent_app_date] => 2006-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1064 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 11422702 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/422702
Camshaft system for internal combustion engine Jun 6, 2006 Issued
Array ( [id] => 5883433 [patent_doc_number] => 20060272608 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2006-12-07 [patent_title] => 'Compression ignition engine' [patent_app_type] => utility [patent_app_number] => 11/447249 [patent_app_country] => US [patent_app_date] => 2006-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 18470 [patent_no_of_claims] => 11 [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/A1/0272/20060272608.pdf [firstpage_image] =>[orig_patent_app_number] => 11447249 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/447249
Compression ignition engine Jun 5, 2006 Abandoned
Array ( [id] => 1075861 [patent_doc_number] => 07614370 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-11-10 [patent_title] => 'Vane-type cam phaser having bias spring system to assist intermediate position pin locking' [patent_app_type] => utility [patent_app_number] => 11/447437 [patent_app_country] => US [patent_app_date] => 2006-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 2733 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/614/07614370.pdf [firstpage_image] =>[orig_patent_app_number] => 11447437 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/447437
Vane-type cam phaser having bias spring system to assist intermediate position pin locking Jun 5, 2006 Issued
Array ( [id] => 4456730 [patent_doc_number] => 07878169 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-02-01 [patent_title] => 'Cam roller pin with transverse grooves' [patent_app_type] => utility [patent_app_number] => 11/422456 [patent_app_country] => US [patent_app_date] => 2006-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 4114 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/878/07878169.pdf [firstpage_image] =>[orig_patent_app_number] => 11422456 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/422456
Cam roller pin with transverse grooves Jun 5, 2006 Issued
Array ( [id] => 927723 [patent_doc_number] => 07314028 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-01-01 [patent_title] => 'Control apparatus for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/446296 [patent_app_country] => US [patent_app_date] => 2006-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 43 [patent_figures_cnt] => 56 [patent_no_of_words] => 29886 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/314/07314028.pdf [firstpage_image] =>[orig_patent_app_number] => 11446296 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/446296
Control apparatus for internal combustion engine Jun 4, 2006 Issued
Array ( [id] => 266365 [patent_doc_number] => 07565887 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-07-28 [patent_title] => 'Valve actuation device of internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/446138 [patent_app_country] => US [patent_app_date] => 2006-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 17 [patent_no_of_words] => 9313 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/565/07565887.pdf [firstpage_image] =>[orig_patent_app_number] => 11446138 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/446138
Valve actuation device of internal combustion engine Jun 4, 2006 Issued
Array ( [id] => 189594 [patent_doc_number] => 07640902 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-01-05 [patent_title] => 'Rotor for vane-type motor with reduced leakage' [patent_app_type] => utility [patent_app_number] => 11/447608 [patent_app_country] => US [patent_app_date] => 2006-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 4262 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/640/07640902.pdf [firstpage_image] =>[orig_patent_app_number] => 11447608 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/447608
Rotor for vane-type motor with reduced leakage Jun 4, 2006 Issued
Array ( [id] => 5007033 [patent_doc_number] => 20070277510 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-12-06 [patent_title] => 'System to control exhaust gas temperature' [patent_app_type] => utility [patent_app_number] => 11/443085 [patent_app_country] => US [patent_app_date] => 2006-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4694 [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/A1/0277/20070277510.pdf [firstpage_image] =>[orig_patent_app_number] => 11443085 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/443085
System to control exhaust gas temperature May 30, 2006 Issued
Array ( [id] => 5048332 [patent_doc_number] => 20070028876 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-02-08 [patent_title] => 'Multiple cylinder engine' [patent_app_type] => utility [patent_app_number] => 11/442847 [patent_app_country] => US [patent_app_date] => 2006-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 9693 [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/A1/0028/20070028876.pdf [firstpage_image] =>[orig_patent_app_number] => 11442847 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/442847
Multiple cylinder engine May 29, 2006 Issued
Array ( [id] => 382005 [patent_doc_number] => 07305950 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2007-12-11 [patent_title] => 'Method for control of dilution in engines during variable camshaft phasing' [patent_app_type] => utility [patent_app_number] => 11/441964 [patent_app_country] => US [patent_app_date] => 2006-05-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2932 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/305/07305950.pdf [firstpage_image] =>[orig_patent_app_number] => 11441964 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/441964
Method for control of dilution in engines during variable camshaft phasing May 25, 2006 Issued
Array ( [id] => 819018 [patent_doc_number] => 07406931 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-08-05 [patent_title] => 'Control apparatus for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/437749 [patent_app_country] => US [patent_app_date] => 2006-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 8617 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/406/07406931.pdf [firstpage_image] =>[orig_patent_app_number] => 11437749 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/437749
Control apparatus for internal combustion engine May 21, 2006 Issued
Array ( [id] => 443404 [patent_doc_number] => 07252053 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-08-07 [patent_title] => 'Electromagnetic actuator and control' [patent_app_type] => utility [patent_app_number] => 11/438041 [patent_app_country] => US [patent_app_date] => 2006-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 28 [patent_no_of_words] => 9366 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/252/07252053.pdf [firstpage_image] =>[orig_patent_app_number] => 11438041 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/438041
Electromagnetic actuator and control May 18, 2006 Issued
Array ( [id] => 614622 [patent_doc_number] => 07143728 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2006-12-05 [patent_title] => 'Control apparatus' [patent_app_type] => utility [patent_app_number] => 11/433476 [patent_app_country] => US [patent_app_date] => 2006-05-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 29 [patent_no_of_words] => 24808 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 39 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/143/07143728.pdf [firstpage_image] =>[orig_patent_app_number] => 11433476 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/433476
Control apparatus May 14, 2006 Issued
Array ( [id] => 5604796 [patent_doc_number] => 20060266312 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2006-11-30 [patent_title] => 'System and method for controlling load and combustion in an internal-combustion engine by valve actuation according to a multiple lift (multilift) cycle' [patent_app_type] => utility [patent_app_number] => 11/433417 [patent_app_country] => US [patent_app_date] => 2006-05-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4028 [patent_no_of_claims] => 16 [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/A1/0266/20060266312.pdf [firstpage_image] =>[orig_patent_app_number] => 11433417 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/433417
System and method for controlling load and combustion in an internal-combustion engine by valve actuation according to a multiple lift (multilift) cycle May 14, 2006 Issued
Array ( [id] => 5604795 [patent_doc_number] => 20060266311 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2006-11-30 [patent_title] => 'Variable valve control apparatus' [patent_app_type] => utility [patent_app_number] => 11/431519 [patent_app_country] => US [patent_app_date] => 2006-05-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 7452 [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/A1/0266/20060266311.pdf [firstpage_image] =>[orig_patent_app_number] => 11431519 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/431519
Variable valve control apparatus May 10, 2006 Issued
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