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] => 5707387 [patent_doc_number] => 20060048731 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2006-03-09 [patent_title] => 'Variable valve timing controller' [patent_app_type] => utility [patent_app_number] => 11/221917 [patent_app_country] => US [patent_app_date] => 2005-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3268 [patent_no_of_claims] => 8 [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/A1/0048/20060048731.pdf [firstpage_image] =>[orig_patent_app_number] => 11221917 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/221917
Variable valve timing controller Sep 8, 2005 Issued
Array ( [id] => 5144687 [patent_doc_number] => 20070044741 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-03-01 [patent_title] => 'Electromechanical valve actuator' [patent_app_type] => utility [patent_app_number] => 11/216756 [patent_app_country] => US [patent_app_date] => 2005-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 1380 [patent_no_of_claims] => 8 [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/A1/0044/20070044741.pdf [firstpage_image] =>[orig_patent_app_number] => 11216756 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/216756
Electromechanical valve actuator Aug 30, 2005 Abandoned
Array ( [id] => 509652 [patent_doc_number] => 07188595 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-03-13 [patent_title] => 'Variable valve actuation device of internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/213916 [patent_app_country] => US [patent_app_date] => 2005-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6127 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/188/07188595.pdf [firstpage_image] =>[orig_patent_app_number] => 11213916 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/213916
Variable valve actuation device of internal combustion engine Aug 29, 2005 Issued
Array ( [id] => 484570 [patent_doc_number] => 07213551 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-05-08 [patent_title] => 'Variable valve operating device' [patent_app_type] => utility [patent_app_number] => 10/579296 [patent_app_country] => US [patent_app_date] => 2005-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 10691 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 224 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/213/07213551.pdf [firstpage_image] =>[orig_patent_app_number] => 10579296 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/579296
Variable valve operating device Aug 29, 2005 Issued
Array ( [id] => 5412680 [patent_doc_number] => 20090038567 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-02-12 [patent_title] => 'Variable valve operating device' [patent_app_type] => utility [patent_app_number] => 11/658568 [patent_app_country] => US [patent_app_date] => 2005-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 6167 [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/A1/0038/20090038567.pdf [firstpage_image] =>[orig_patent_app_number] => 11658568 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/658568
Variable valve operating device Aug 29, 2005 Issued
Array ( [id] => 183271 [patent_doc_number] => 07644689 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-01-12 [patent_title] => 'Variable valve operating device' [patent_app_type] => utility [patent_app_number] => 11/658527 [patent_app_country] => US [patent_app_date] => 2005-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 6094 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 248 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/644/07644689.pdf [firstpage_image] =>[orig_patent_app_number] => 11658527 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/658527
Variable valve operating device Aug 29, 2005 Issued
Array ( [id] => 453271 [patent_doc_number] => 07243627 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-07-17 [patent_title] => 'Engine rotation condition detecting system and engine control method' [patent_app_type] => utility [patent_app_number] => 11/213898 [patent_app_country] => US [patent_app_date] => 2005-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 3337 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/243/07243627.pdf [firstpage_image] =>[orig_patent_app_number] => 11213898 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/213898
Engine rotation condition detecting system and engine control method Aug 29, 2005 Issued
Array ( [id] => 5318669 [patent_doc_number] => 20090056659 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-03-05 [patent_title] => 'DIRECT-ACTING TYPE VALVE LIFTER FOR INTERNAL-COMBUSTION ENGINES' [patent_app_type] => utility [patent_app_number] => 11/997646 [patent_app_country] => US [patent_app_date] => 2005-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 4795 [patent_no_of_claims] => 3 [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/A1/0056/20090056659.pdf [firstpage_image] =>[orig_patent_app_number] => 11997646 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/997646
DIRECT-ACTING TYPE VALVE LIFTER FOR INTERNAL-COMBUSTION ENGINES Aug 25, 2005 Abandoned
Array ( [id] => 703866 [patent_doc_number] => 07059284 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-06-13 [patent_title] => 'Internal combustion engine having valves with variable actuation and hydraulic actuating units which control the valves by means of rocker arms' [patent_app_type] => utility [patent_app_number] => 11/209958 [patent_app_country] => US [patent_app_date] => 2005-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3987 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 344 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/059/07059284.pdf [firstpage_image] =>[orig_patent_app_number] => 11209958 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/209958
Internal combustion engine having valves with variable actuation and hydraulic actuating units which control the valves by means of rocker arms Aug 22, 2005 Issued
Array ( [id] => 5144688 [patent_doc_number] => 20070044742 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-03-01 [patent_title] => 'Method for controlling an engine having variable cam timing' [patent_app_type] => utility [patent_app_number] => 11/209452 [patent_app_country] => US [patent_app_date] => 2005-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 4049 [patent_no_of_claims] => 22 [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/A1/0044/20070044742.pdf [firstpage_image] =>[orig_patent_app_number] => 11209452 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/209452
Method for controlling an engine having variable cam timing Aug 22, 2005 Issued
Array ( [id] => 611559 [patent_doc_number] => 07146951 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-12-12 [patent_title] => 'Switchable cam follower' [patent_app_type] => utility [patent_app_number] => 11/210049 [patent_app_country] => US [patent_app_date] => 2005-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 1708 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 214 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/146/07146951.pdf [firstpage_image] =>[orig_patent_app_number] => 11210049 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/210049
Switchable cam follower Aug 21, 2005 Issued
Array ( [id] => 716073 [patent_doc_number] => 07047924 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2006-05-23 [patent_title] => 'Method for diagnosing the operational state of a two-step variable valve lift device' [patent_app_type] => utility [patent_app_number] => 11/207364 [patent_app_country] => US [patent_app_date] => 2005-08-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4778 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/047/07047924.pdf [firstpage_image] =>[orig_patent_app_number] => 11207364 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/207364
Method for diagnosing the operational state of a two-step variable valve lift device Aug 18, 2005 Issued
Array ( [id] => 699511 [patent_doc_number] => 07063057 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2006-06-20 [patent_title] => 'Method for effectively diagnosing the operational state of a variable valve lift device' [patent_app_type] => utility [patent_app_number] => 11/208297 [patent_app_country] => US [patent_app_date] => 2005-08-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5821 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 216 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/063/07063057.pdf [firstpage_image] =>[orig_patent_app_number] => 11208297 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/208297
Method for effectively diagnosing the operational state of a variable valve lift device Aug 18, 2005 Issued
Array ( [id] => 9438353 [patent_doc_number] => RE044864 [patent_country] => US [patent_kind] => E1 [patent_issue_date] => 2014-04-29 [patent_title] => 'Switching element for a valve train of an internal combustion engine' [patent_app_type] => reissue [patent_app_number] => 11/206280 [patent_app_country] => US [patent_app_date] => 2005-08-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 1939 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 196 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 11206280 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/206280
Switching element for a valve train of an internal combustion engine Aug 17, 2005 Issued
Array ( [id] => 728352 [patent_doc_number] => 07036471 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-05-02 [patent_title] => 'Intake air control apparatus and method for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/206106 [patent_app_country] => US [patent_app_date] => 2005-08-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 19 [patent_no_of_words] => 8731 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 217 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/036/07036471.pdf [firstpage_image] =>[orig_patent_app_number] => 11206106 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/206106
Intake air control apparatus and method for internal combustion engine Aug 17, 2005 Issued
Array ( [id] => 5333624 [patent_doc_number] => 20090050088 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-02-26 [patent_title] => 'CAMSHAFT ADJUSTER' [patent_app_type] => utility [patent_app_number] => 11/574435 [patent_app_country] => US [patent_app_date] => 2005-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4245 [patent_no_of_claims] => 17 [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/A1/0050/20090050088.pdf [firstpage_image] =>[orig_patent_app_number] => 11574435 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/574435
Camshaft adjuster Aug 8, 2005 Issued
Array ( [id] => 692038 [patent_doc_number] => 07069891 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-07-04 [patent_title] => 'Valve operating assembly and method of manufacturing' [patent_app_type] => utility [patent_app_number] => 11/200287 [patent_app_country] => US [patent_app_date] => 2005-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 66 [patent_figures_cnt] => 68 [patent_no_of_words] => 17934 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 328 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/069/07069891.pdf [firstpage_image] =>[orig_patent_app_number] => 11200287 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/200287
Valve operating assembly and method of manufacturing Aug 8, 2005 Issued
Array ( [id] => 5876680 [patent_doc_number] => 20060027195 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2006-02-09 [patent_title] => 'Valve drive for charge-cycling valves of internal combustion engines' [patent_app_type] => utility [patent_app_number] => 11/198537 [patent_app_country] => US [patent_app_date] => 2005-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3621 [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/A1/0027/20060027195.pdf [firstpage_image] =>[orig_patent_app_number] => 11198537 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/198537
Valve drive for charge-cycling valves of internal combustion engines Aug 4, 2005 Issued
Array ( [id] => 5048333 [patent_doc_number] => 20070028877 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-02-08 [patent_title] => 'Detection of a specific faulted DOD electrohydraulic circuit' [patent_app_type] => utility [patent_app_number] => 11/195856 [patent_app_country] => US [patent_app_date] => 2005-08-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3613 [patent_no_of_claims] => 22 [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/A1/0028/20070028877.pdf [firstpage_image] =>[orig_patent_app_number] => 11195856 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/195856
Detection of a specific faulted DOD electrohydraulic circuit Aug 1, 2005 Issued
Array ( [id] => 4755828 [patent_doc_number] => 20080308053 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-12-18 [patent_title] => 'Variable Valve Drive Device, Engine, and Motorcycle' [patent_app_type] => utility [patent_app_number] => 11/574299 [patent_app_country] => US [patent_app_date] => 2005-08-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 13118 [patent_no_of_claims] => 12 [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/A1/0308/20080308053.pdf [firstpage_image] =>[orig_patent_app_number] => 11574299 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/574299
Variable Valve Drive Device, Engine, and Motorcycle Aug 1, 2005 Abandoned
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