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] => 5018513 [patent_doc_number] => 20070144477 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-06-28 [patent_title] => 'Twincam engine and motorcycle comprising the same' [patent_app_type] => utility [patent_app_number] => 11/599156 [patent_app_country] => US [patent_app_date] => 2006-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5397 [patent_no_of_claims] => 7 [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/A1/0144/20070144477.pdf [firstpage_image] =>[orig_patent_app_number] => 11599156 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/599156
Twincam engine and motorcycle comprising the same Nov 12, 2006 Issued
Array ( [id] => 851362 [patent_doc_number] => 07377247 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-05-27 [patent_title] => 'Adjustable valve rocker lever of a valve timing gear of an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/595257 [patent_app_country] => US [patent_app_date] => 2006-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2387 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 260 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/377/07377247.pdf [firstpage_image] =>[orig_patent_app_number] => 11595257 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/595257
Adjustable valve rocker lever of a valve timing gear of an internal combustion engine Nov 8, 2006 Issued
Array ( [id] => 5438685 [patent_doc_number] => 20090090324 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-04-09 [patent_title] => 'Sealed Lash Adjuster and Method for Adjusting Amount of Liquid Sealed in Sealed Lash Adjuster' [patent_app_type] => utility [patent_app_number] => 12/084379 [patent_app_country] => US [patent_app_date] => 2006-11-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 13702 [patent_no_of_claims] => 19 [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/A1/0090/20090090324.pdf [firstpage_image] =>[orig_patent_app_number] => 12084379 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/084379
Sealed lash adjuster and method for adjusting amount of liquid sealed in sealed lash adjuster Nov 7, 2006 Issued
Array ( [id] => 5092196 [patent_doc_number] => 20070113805 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-05-24 [patent_title] => 'INTERNAL COMBUSTION ENGINE COMPRISING A VARIABLE VALVE LIFT SYSTEM AND A METHOD FOR CONTROLLING VALVE LIFT SHIFTING' [patent_app_type] => utility [patent_app_number] => 11/556737 [patent_app_country] => US [patent_app_date] => 2006-11-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1774 [patent_no_of_claims] => 5 [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/A1/0113/20070113805.pdf [firstpage_image] =>[orig_patent_app_number] => 11556737 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/556737
INTERNAL COMBUSTION ENGINE COMPRISING A VARIABLE VALVE LIFT SYSTEM AND A METHOD FOR CONTROLLING VALVE LIFT SHIFTING Nov 5, 2006 Abandoned
Array ( [id] => 5030778 [patent_doc_number] => 20070095317 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-05-03 [patent_title] => 'Hydraulic camshaft adjuster and method for assembling the same' [patent_app_type] => utility [patent_app_number] => 11/592730 [patent_app_country] => US [patent_app_date] => 2006-11-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2820 [patent_no_of_claims] => 16 [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/A1/0095/20070095317.pdf [firstpage_image] =>[orig_patent_app_number] => 11592730 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/592730
Hydraulic camshaft adjuster and method for assembling the same Nov 2, 2006 Issued
Array ( [id] => 551514 [patent_doc_number] => 07464675 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2008-12-16 [patent_title] => 'Operating an air-hybrid vehicle with camshaft-driven engine valves' [patent_app_type] => utility [patent_app_number] => 11/590549 [patent_app_country] => US [patent_app_date] => 2006-11-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 20 [patent_no_of_words] => 15650 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 481 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/464/07464675.pdf [firstpage_image] =>[orig_patent_app_number] => 11590549 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/590549
Operating an air-hybrid vehicle with camshaft-driven engine valves Oct 31, 2006 Issued
Array ( [id] => 5115901 [patent_doc_number] => 20070137614 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-06-21 [patent_title] => 'Rotary-to-linear actuator, linear motion shaft mechanism, variable valve actuation mechanism and variable valve engine' [patent_app_type] => utility [patent_app_number] => 11/590808 [patent_app_country] => US [patent_app_date] => 2006-11-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 31 [patent_figures_cnt] => 31 [patent_no_of_words] => 22824 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 15 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0137/20070137614.pdf [firstpage_image] =>[orig_patent_app_number] => 11590808 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/590808
Rotary-to-linear actuator, linear motion shaft mechanism, variable valve actuation mechanism and variable valve engine Oct 31, 2006 Issued
Array ( [id] => 574360 [patent_doc_number] => 07438035 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-10-21 [patent_title] => 'Cam drive apparatus having a magnetic gear' [patent_app_type] => utility [patent_app_number] => 11/591099 [patent_app_country] => US [patent_app_date] => 2006-11-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2798 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/438/07438035.pdf [firstpage_image] =>[orig_patent_app_number] => 11591099 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/591099
Cam drive apparatus having a magnetic gear Oct 31, 2006 Issued
Array ( [id] => 5455342 [patent_doc_number] => 20090255494 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-10-15 [patent_title] => 'Variable Valve Mechanism for Internal Combustion Engine' [patent_app_type] => utility [patent_app_number] => 11/989567 [patent_app_country] => US [patent_app_date] => 2006-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 11236 [patent_no_of_claims] => 13 [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/A1/0255/20090255494.pdf [firstpage_image] =>[orig_patent_app_number] => 11989567 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/989567
Variable valve mechanism for internal combustion engine Oct 30, 2006 Issued
Array ( [id] => 5030777 [patent_doc_number] => 20070095316 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-05-03 [patent_title] => 'Hydraulic control system for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/588246 [patent_app_country] => US [patent_app_date] => 2006-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 9963 [patent_no_of_claims] => 10 [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/A1/0095/20070095316.pdf [firstpage_image] =>[orig_patent_app_number] => 11588246 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/588246
Hydraulic control system for internal combustion engine Oct 26, 2006 Issued
Array ( [id] => 5455343 [patent_doc_number] => 20090255495 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-10-15 [patent_title] => 'Method of Variable Valve Timing in an Internal Combustion Engine' [patent_app_type] => utility [patent_app_number] => 12/084807 [patent_app_country] => US [patent_app_date] => 2006-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3940 [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/A1/0255/20090255495.pdf [firstpage_image] =>[orig_patent_app_number] => 12084807 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/084807
Method of variable valve timing in an internal combustion engine Oct 24, 2006 Issued
Array ( [id] => 231475 [patent_doc_number] => 07597072 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-10-06 [patent_title] => 'System and method for operating a multiple fuel engine' [patent_app_type] => utility [patent_app_number] => 11/552310 [patent_app_country] => US [patent_app_date] => 2006-10-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 8291 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/597/07597072.pdf [firstpage_image] =>[orig_patent_app_number] => 11552310 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/552310
System and method for operating a multiple fuel engine Oct 23, 2006 Issued
Array ( [id] => 5053622 [patent_doc_number] => 20070056542 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-03-15 [patent_title] => 'Angular camshaft position adjustment drive' [patent_app_type] => utility [patent_app_number] => 11/584337 [patent_app_country] => US [patent_app_date] => 2006-10-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3050 [patent_no_of_claims] => 11 [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/A1/0056/20070056542.pdf [firstpage_image] =>[orig_patent_app_number] => 11584337 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/584337
Angular camshaft position adjustment drive Oct 19, 2006 Issued
Array ( [id] => 851356 [patent_doc_number] => 07377243 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-05-27 [patent_title] => 'Adjusting mechanism for a camshaft arrangement' [patent_app_type] => utility [patent_app_number] => 11/584336 [patent_app_country] => US [patent_app_date] => 2006-10-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 4254 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/377/07377243.pdf [firstpage_image] =>[orig_patent_app_number] => 11584336 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/584336
Adjusting mechanism for a camshaft arrangement Oct 19, 2006 Issued
Array ( [id] => 570587 [patent_doc_number] => 07444968 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-11-04 [patent_title] => 'Variable phase drive coupling' [patent_app_type] => utility [patent_app_number] => 11/550886 [patent_app_country] => US [patent_app_date] => 2006-10-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 11 [patent_no_of_words] => 2801 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/444/07444968.pdf [firstpage_image] =>[orig_patent_app_number] => 11550886 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/550886
Variable phase drive coupling Oct 18, 2006 Issued
Array ( [id] => 4742640 [patent_doc_number] => 20080087241 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-04-17 [patent_title] => 'Camshaft phaser having a differential bevel gear system' [patent_app_type] => utility [patent_app_number] => 11/582087 [patent_app_country] => US [patent_app_date] => 2006-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3768 [patent_no_of_claims] => 18 [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/A1/0087/20080087241.pdf [firstpage_image] =>[orig_patent_app_number] => 11582087 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/582087
Camshaft phaser having a differential bevel gear system Oct 16, 2006 Issued
Array ( [id] => 5030771 [patent_doc_number] => 20070095310 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-05-03 [patent_title] => 'VALVE OPERATING MECHANISM' [patent_app_type] => utility [patent_app_number] => 11/550082 [patent_app_country] => US [patent_app_date] => 2006-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3331 [patent_no_of_claims] => 44 [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/A1/0095/20070095310.pdf [firstpage_image] =>[orig_patent_app_number] => 11550082 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/550082
Valve operating mechanism Oct 16, 2006 Issued
Array ( [id] => 4679097 [patent_doc_number] => 20080245323 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-10-09 [patent_title] => 'Pump System for Supplying Pressurized Hydraulic Fluid to a Hydraulically Activated Valvetrain' [patent_app_type] => utility [patent_app_number] => 12/088728 [patent_app_country] => US [patent_app_date] => 2006-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1695 [patent_no_of_claims] => 6 [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/A1/0245/20080245323.pdf [firstpage_image] =>[orig_patent_app_number] => 12088728 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/088728
Pump System for Supplying Pressurized Hydraulic Fluid to a Hydraulically Activated Valvetrain Oct 12, 2006 Abandoned
Array ( [id] => 4694594 [patent_doc_number] => 20080216778 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-09-11 [patent_title] => 'Pump System and Decoupler for Supplying Pressurized Hydraulic Fluid to a Hydraulically Actuated Valvetrain' [patent_app_type] => utility [patent_app_number] => 12/088876 [patent_app_country] => US [patent_app_date] => 2006-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2144 [patent_no_of_claims] => 15 [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/A1/0216/20080216778.pdf [firstpage_image] =>[orig_patent_app_number] => 12088876 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/088876
Pump system and decoupler for supplying pressurized hydraulic fluid to a hydraulically actuated valvetrain Oct 12, 2006 Issued
Array ( [id] => 4979872 [patent_doc_number] => 20070084426 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-04-19 [patent_title] => 'ADJUSTABLE VALVE ROCKER LEVER' [patent_app_type] => utility [patent_app_number] => 11/546869 [patent_app_country] => US [patent_app_date] => 2006-10-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2265 [patent_no_of_claims] => 10 [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/A1/0084/20070084426.pdf [firstpage_image] =>[orig_patent_app_number] => 11546869 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/546869
Adjustable valve rocker lever Oct 11, 2006 Issued
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