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] => 7399071 [patent_doc_number] => 20040261738 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-30 [patent_title] => 'Fail-safe control apparatus for internal combustion engine equipped with variable valve characteristic mechanism and method thereof' [patent_app_type] => new [patent_app_number] => 10/872529 [patent_app_country] => US [patent_app_date] => 2004-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 5505 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0261/20040261738.pdf [firstpage_image] =>[orig_patent_app_number] => 10872529 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/872529
Fail-safe control apparatus for internal combustion engine equipped with variable valve characteristic mechanism and method thereof Jun 21, 2004 Issued
Array ( [id] => 6928266 [patent_doc_number] => 20050279298 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-12-22 [patent_title] => 'Bi-directional power electronics circuit for electromechanical valve actuator of an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 10/873712 [patent_app_country] => US [patent_app_date] => 2004-06-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 7799 [patent_no_of_claims] => 23 [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/A1/0279/20050279298.pdf [firstpage_image] =>[orig_patent_app_number] => 10873712 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/873712
Bi-directional power electronics circuit for electromechanical valve actuator of an internal combustion engine Jun 20, 2004 Issued
Array ( [id] => 732480 [patent_doc_number] => 07032550 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-04-25 [patent_title] => 'Inter-cylinder variation detection device and inter-bank variation detection device of internal combustion engine' [patent_app_type] => utility [patent_app_number] => 10/528357 [patent_app_country] => US [patent_app_date] => 2004-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 34 [patent_no_of_words] => 20660 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/032/07032550.pdf [firstpage_image] =>[orig_patent_app_number] => 10528357 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/528357
Inter-cylinder variation detection device and inter-bank variation detection device of internal combustion engine Jun 16, 2004 Issued
Array ( [id] => 618264 [patent_doc_number] => 07140334 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-11-28 [patent_title] => 'Valve train for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 10/867818 [patent_app_country] => US [patent_app_date] => 2004-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 5117 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 197 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/140/07140334.pdf [firstpage_image] =>[orig_patent_app_number] => 10867818 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/867818
Valve train for internal combustion engine Jun 15, 2004 Issued
Array ( [id] => 109832 [patent_doc_number] => 07712439 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-05-11 [patent_title] => 'Method for controlling operation of the cylinder of an internal combustion engine, an engine comprising a cylinder operating according said method and a motor vehicle provided with said engine' [patent_app_type] => utility [patent_app_number] => 10/562417 [patent_app_country] => US [patent_app_date] => 2004-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 13 [patent_no_of_words] => 3223 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 211 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/712/07712439.pdf [firstpage_image] =>[orig_patent_app_number] => 10562417 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/562417
Method for controlling operation of the cylinder of an internal combustion engine, an engine comprising a cylinder operating according said method and a motor vehicle provided with said engine Jun 3, 2004 Issued
Array ( [id] => 7336448 [patent_doc_number] => 20040244751 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-09 [patent_title] => 'Deactivating valve lifter' [patent_app_type] => new [patent_app_number] => 10/859024 [patent_app_country] => US [patent_app_date] => 2004-06-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2069 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0244/20040244751.pdf [firstpage_image] =>[orig_patent_app_number] => 10859024 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/859024
Deactivating valve lifter Jun 1, 2004 Abandoned
Array ( [id] => 7244631 [patent_doc_number] => 20040237917 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-02 [patent_title] => 'Valve timing control system and control system for an internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/855566 [patent_app_country] => US [patent_app_date] => 2004-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 46 [patent_figures_cnt] => 46 [patent_no_of_words] => 31524 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 36 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0237/20040237917.pdf [firstpage_image] =>[orig_patent_app_number] => 10855566 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/855566
Valve timing control system and control system for an internal combustion engine May 27, 2004 Issued
Array ( [id] => 692036 [patent_doc_number] => 07069889 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-07-04 [patent_title] => 'Camshaft, especially for an internal combustion engine of a motor vehicle, comprising shiftable cams' [patent_app_type] => utility [patent_app_number] => 10/536277 [patent_app_country] => US [patent_app_date] => 2004-05-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 36 [patent_no_of_words] => 1692 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 228 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/069/07069889.pdf [firstpage_image] =>[orig_patent_app_number] => 10536277 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/536277
Camshaft, especially for an internal combustion engine of a motor vehicle, comprising shiftable cams May 25, 2004 Issued
Array ( [id] => 5048331 [patent_doc_number] => 20070028875 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-02-08 [patent_title] => 'Valve moving device for engine' [patent_app_type] => utility [patent_app_number] => 10/557139 [patent_app_country] => US [patent_app_date] => 2004-05-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 5902 [patent_no_of_claims] => 3 [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/A1/0028/20070028875.pdf [firstpage_image] =>[orig_patent_app_number] => 10557139 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/557139
Valve moving device for engine May 25, 2004 Issued
Array ( [id] => 7359976 [patent_doc_number] => 20040216708 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-11-04 [patent_title] => 'Apparatus and method for controlling variable valve operating mechanism' [patent_app_type] => new [patent_app_number] => 10/851140 [patent_app_country] => US [patent_app_date] => 2004-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 5519 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0216/20040216708.pdf [firstpage_image] =>[orig_patent_app_number] => 10851140 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/851140
Apparatus and method for controlling variable valve operating mechanism May 23, 2004 Issued
Array ( [id] => 7210136 [patent_doc_number] => 20050252472 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-11-17 [patent_title] => 'Rocker arm assembly for an engine' [patent_app_type] => utility [patent_app_number] => 10/845859 [patent_app_country] => US [patent_app_date] => 2004-05-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1954 [patent_no_of_claims] => 15 [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/A1/0252/20050252472.pdf [firstpage_image] =>[orig_patent_app_number] => 10845859 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/845859
Rocker arm assembly for an engine May 13, 2004 Abandoned
Array ( [id] => 545736 [patent_doc_number] => 07467609 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-12-23 [patent_title] => 'Valve-stroke controls' [patent_app_type] => utility [patent_app_number] => 10/834599 [patent_app_country] => US [patent_app_date] => 2004-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 6339 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/467/07467609.pdf [firstpage_image] =>[orig_patent_app_number] => 10834599 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/834599
Valve-stroke controls Apr 28, 2004 Issued
Array ( [id] => 5690791 [patent_doc_number] => 20060150936 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2006-07-13 [patent_title] => 'Control device for multicylinder internal combustion engine' [patent_app_type] => utility [patent_app_number] => 10/521556 [patent_app_country] => US [patent_app_date] => 2004-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 13155 [patent_no_of_claims] => 13 [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/A1/0150/20060150936.pdf [firstpage_image] =>[orig_patent_app_number] => 10521556 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/521556
Control device for multicylinder internal combustion engine Apr 27, 2004 Issued
Array ( [id] => 118528 [patent_doc_number] => 07707982 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-05-04 [patent_title] => 'Valve rotating mechanism for exhaust valves, especially of marine diesel engines' [patent_app_type] => utility [patent_app_number] => 11/587508 [patent_app_country] => US [patent_app_date] => 2004-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3663 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/707/07707982.pdf [firstpage_image] =>[orig_patent_app_number] => 11587508 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/587508
Valve rotating mechanism for exhaust valves, especially of marine diesel engines Apr 26, 2004 Issued
Array ( [id] => 7336442 [patent_doc_number] => 20040244746 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-09 [patent_title] => 'Valve timing adjusting device' [patent_app_type] => new [patent_app_number] => 10/832233 [patent_app_country] => US [patent_app_date] => 2004-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3709 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0244/20040244746.pdf [firstpage_image] =>[orig_patent_app_number] => 10832233 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/832233
Valve timing adjusting device Apr 26, 2004 Issued
Array ( [id] => 7336441 [patent_doc_number] => 20040244745 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-09 [patent_title] => 'Camshaft Adjuster for Vehicles, Especially Motor Vehicles' [patent_app_type] => new [patent_app_number] => 10/709216 [patent_app_country] => US [patent_app_date] => 2004-04-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 3927 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 25 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0244/20040244745.pdf [firstpage_image] =>[orig_patent_app_number] => 10709216 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/709216
Camshaft adjuster for vehicles, especially motor vehicles Apr 21, 2004 Issued
Array ( [id] => 7399054 [patent_doc_number] => 20040261736 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-30 [patent_title] => 'Methods of controlling a camless engine to prevent interference between valves and pistons' [patent_app_type] => new [patent_app_number] => 10/824837 [patent_app_country] => US [patent_app_date] => 2004-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3105 [patent_no_of_claims] => 36 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0261/20040261736.pdf [firstpage_image] =>[orig_patent_app_number] => 10824837 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/824837
Methods of controlling a camless engine to prevent interference between valves and pistons Apr 14, 2004 Abandoned
Array ( [id] => 7015072 [patent_doc_number] => 20050217623 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-10-06 [patent_title] => 'Cam follower' [patent_app_type] => utility [patent_app_number] => 10/817079 [patent_app_country] => US [patent_app_date] => 2004-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1445 [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/A1/0217/20050217623.pdf [firstpage_image] =>[orig_patent_app_number] => 10817079 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/817079
Cam follower Apr 1, 2004 Abandoned
Array ( [id] => 973449 [patent_doc_number] => 06932041 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2005-08-23 [patent_title] => 'Apparatus and method for maintaining controlled orientation of a roller lifter follower used in conjunction with a variable phased lifter' [patent_app_type] => utility [patent_app_number] => 10/816098 [patent_app_country] => US [patent_app_date] => 2004-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 11 [patent_no_of_words] => 3479 [patent_no_of_claims] => 34 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/932/06932041.pdf [firstpage_image] =>[orig_patent_app_number] => 10816098 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/816098
Apparatus and method for maintaining controlled orientation of a roller lifter follower used in conjunction with a variable phased lifter Mar 31, 2004 Issued
Array ( [id] => 7272171 [patent_doc_number] => 20040231622 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-11-25 [patent_title] => 'Valve train for internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/811728 [patent_app_country] => US [patent_app_date] => 2004-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 6338 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0231/20040231622.pdf [firstpage_image] =>[orig_patent_app_number] => 10811728 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/811728
Valve train for internal combustion engine Mar 28, 2004 Abandoned
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