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] => 7543855 [patent_doc_number] => 08051818 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-11-08 [patent_title] => 'Dual independent phasing system to independently phase the intake and exhaust cam lobes of a concentric camshaft arrangement' [patent_app_type] => utility [patent_app_number] => 12/571698 [patent_app_country] => US [patent_app_date] => 2009-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 17 [patent_no_of_words] => 4714 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/051/08051818.pdf [firstpage_image] =>[orig_patent_app_number] => 12571698 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/571698
Dual independent phasing system to independently phase the intake and exhaust cam lobes of a concentric camshaft arrangement Sep 30, 2009 Issued
Array ( [id] => 6300535 [patent_doc_number] => 20100108005 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-05-06 [patent_title] => 'INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 12/566666 [patent_app_country] => US [patent_app_date] => 2009-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 6612 [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/A1/0108/20100108005.pdf [firstpage_image] =>[orig_patent_app_number] => 12566666 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/566666
Internal combustion engine Sep 24, 2009 Issued
Array ( [id] => 6354126 [patent_doc_number] => 20100077977 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-04-01 [patent_title] => 'Internal combustion engine equipped with a variable valve control system' [patent_app_type] => utility [patent_app_number] => 12/586228 [patent_app_country] => US [patent_app_date] => 2009-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 22 [patent_no_of_words] => 22292 [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/A1/0077/20100077977.pdf [firstpage_image] =>[orig_patent_app_number] => 12586228 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/586228
Internal combustion engine equipped with a variable valve control system Sep 17, 2009 Issued
Array ( [id] => 4596281 [patent_doc_number] => 07975662 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-07-12 [patent_title] => 'Internal combustion engine having a hydraulically-actuated variable valve control system, and motorcycle incorporating same' [patent_app_type] => utility [patent_app_number] => 12/586229 [patent_app_country] => US [patent_app_date] => 2009-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 32 [patent_no_of_words] => 22214 [patent_no_of_claims] => 20 [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/07/975/07975662.pdf [firstpage_image] =>[orig_patent_app_number] => 12586229 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/586229
Internal combustion engine having a hydraulically-actuated variable valve control system, and motorcycle incorporating same Sep 17, 2009 Issued
Array ( [id] => 6292072 [patent_doc_number] => 20100064994 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-03-18 [patent_title] => 'INTERNAL-COMBUSTION ENGINE OF THE TYPE WITH AT LEAST ONE CYLINDER WORKING IN DEGRADED MODE' [patent_app_type] => utility [patent_app_number] => 12/562299 [patent_app_country] => US [patent_app_date] => 2009-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4194 [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/A1/0064/20100064994.pdf [firstpage_image] =>[orig_patent_app_number] => 12562299 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/562299
Internal-combustion engine of the type with at least one cylinder working in degraded mode Sep 17, 2009 Issued
Array ( [id] => 6198828 [patent_doc_number] => 20110061614 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-03-17 [patent_title] => 'CAMSHAFT HAVING A TUNED MASS DAMPER' [patent_app_type] => utility [patent_app_number] => 12/559948 [patent_app_country] => US [patent_app_date] => 2009-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 5666 [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/A1/0061/20110061614.pdf [firstpage_image] =>[orig_patent_app_number] => 12559948 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/559948
Camshaft having a tuned mass damper Sep 14, 2009 Issued
Array ( [id] => 7548987 [patent_doc_number] => 08061316 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-11-22 [patent_title] => 'Internal combustion engine' [patent_app_type] => utility [patent_app_number] => 12/558119 [patent_app_country] => US [patent_app_date] => 2009-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 11 [patent_no_of_words] => 5122 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 199 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/061/08061316.pdf [firstpage_image] =>[orig_patent_app_number] => 12558119 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/558119
Internal combustion engine Sep 10, 2009 Issued
Array ( [id] => 9151738 [patent_doc_number] => 08584634 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-11-19 [patent_title] => 'Phaser built into a camshaft or concentric camshafts' [patent_app_type] => utility [patent_app_number] => 13/061997 [patent_app_country] => US [patent_app_date] => 2009-09-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 4129 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13061997 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/061997
Phaser built into a camshaft or concentric camshafts Sep 9, 2009 Issued
Array ( [id] => 6018699 [patent_doc_number] => 20110048352 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-03-03 [patent_title] => 'Compact Switchable Hydraulic Lash Adjuster with Hydraulic Lost Motion Assist' [patent_app_type] => utility [patent_app_number] => 12/552737 [patent_app_country] => US [patent_app_date] => 2009-09-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2475 [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/A1/0048/20110048352.pdf [firstpage_image] =>[orig_patent_app_number] => 12552737 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/552737
Compact switchable hydraulic lash adjuster with hydraulic lost motion assist Sep 1, 2009 Issued
Array ( [id] => 7994985 [patent_doc_number] => 08079337 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-12-20 [patent_title] => 'Variable valve lift apparatus' [patent_app_type] => utility [patent_app_number] => 12/548118 [patent_app_country] => US [patent_app_date] => 2009-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2278 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/079/08079337.pdf [firstpage_image] =>[orig_patent_app_number] => 12548118 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/548118
Variable valve lift apparatus Aug 25, 2009 Issued
Array ( [id] => 6018692 [patent_doc_number] => 20110048346 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-03-03 [patent_title] => 'Engine with Hydraulic Variable Valve Timing' [patent_app_type] => utility [patent_app_number] => 12/548216 [patent_app_country] => US [patent_app_date] => 2009-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 7029 [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/A1/0048/20110048346.pdf [firstpage_image] =>[orig_patent_app_number] => 12548216 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/548216
Engine with hydraulic variable valve timing Aug 25, 2009 Issued
Array ( [id] => 7525917 [patent_doc_number] => 08042504 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-10-25 [patent_title] => 'Adjusting valve timing to deactivate engine cylinders for variable displacement operation' [patent_app_type] => utility [patent_app_number] => 12/540406 [patent_app_country] => US [patent_app_date] => 2009-08-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 38 [patent_no_of_words] => 10452 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/042/08042504.pdf [firstpage_image] =>[orig_patent_app_number] => 12540406 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/540406
Adjusting valve timing to deactivate engine cylinders for variable displacement operation Aug 12, 2009 Issued
Array ( [id] => 5923439 [patent_doc_number] => 20110036316 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-02-17 [patent_title] => 'INTAKE VALVE CLOSING HYDRAULIC ADJUSTER' [patent_app_type] => utility [patent_app_number] => 12/540828 [patent_app_country] => US [patent_app_date] => 2009-08-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5579 [patent_no_of_claims] => 29 [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/A1/0036/20110036316.pdf [firstpage_image] =>[orig_patent_app_number] => 12540828 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/540828
Intake valve closing hydraulic adjuster Aug 12, 2009 Issued
Array ( [id] => 6532067 [patent_doc_number] => 20100043740 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-02-25 [patent_title] => 'VALVE COVER HOUSING FOR INTERNAL COMBUSTION ENGINES' [patent_app_type] => utility [patent_app_number] => 12/539865 [patent_app_country] => US [patent_app_date] => 2009-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 3853 [patent_no_of_claims] => 26 [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/A1/0043/20100043740.pdf [firstpage_image] =>[orig_patent_app_number] => 12539865 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/539865
Valve cover housing for internal combustion engines Aug 11, 2009 Issued
Array ( [id] => 5923438 [patent_doc_number] => 20110036315 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-02-17 [patent_title] => 'VALVE LIFT CONTROL APPARATUS' [patent_app_type] => utility [patent_app_number] => 12/540116 [patent_app_country] => US [patent_app_date] => 2009-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3230 [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/A1/0036/20110036315.pdf [firstpage_image] =>[orig_patent_app_number] => 12540116 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/540116
VALVE LIFT CONTROL APPARATUS Aug 11, 2009 Abandoned
Array ( [id] => 6439469 [patent_doc_number] => 20100037845 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-02-18 [patent_title] => 'HYDRAULIC SUPPORT ELEMENT FOR A SWITCHABLE CAM FOLLOWER OF A VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 12/539897 [patent_app_country] => US [patent_app_date] => 2009-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1877 [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/A1/0037/20100037845.pdf [firstpage_image] =>[orig_patent_app_number] => 12539897 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/539897
Hydraulic support element for a switchable cam follower of a valve drive of an internal combustion engine Aug 11, 2009 Issued
Array ( [id] => 7538685 [patent_doc_number] => 08056522 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2011-11-15 [patent_title] => 'Automotive valve cover' [patent_app_type] => utility [patent_app_number] => 12/462636 [patent_app_country] => US [patent_app_date] => 2009-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 2718 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/056/08056522.pdf [firstpage_image] =>[orig_patent_app_number] => 12462636 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/462636
Automotive valve cover Aug 5, 2009 Issued
Array ( [id] => 6276680 [patent_doc_number] => 20100154731 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-06-24 [patent_title] => 'Continuously Variable Valve Actuation System' [patent_app_type] => utility [patent_app_number] => 12/536289 [patent_app_country] => US [patent_app_date] => 2009-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3592 [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/A1/0154/20100154731.pdf [firstpage_image] =>[orig_patent_app_number] => 12536289 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/536289
Continuously variable valve actuation system Aug 4, 2009 Issued
Array ( [id] => 4627786 [patent_doc_number] => 08006661 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-08-30 [patent_title] => 'Bridge and pivot foot arrangement for operating engine cylinder valves' [patent_app_type] => utility [patent_app_number] => 12/534956 [patent_app_country] => US [patent_app_date] => 2009-08-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1921 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 214 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/006/08006661.pdf [firstpage_image] =>[orig_patent_app_number] => 12534956 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/534956
Bridge and pivot foot arrangement for operating engine cylinder valves Aug 3, 2009 Issued
Array ( [id] => 7538682 [patent_doc_number] => 08056519 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-11-15 [patent_title] => 'Camshaft phaser intermediate locking pin and seat' [patent_app_type] => utility [patent_app_number] => 12/534188 [patent_app_country] => US [patent_app_date] => 2009-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 13 [patent_no_of_words] => 4415 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/056/08056519.pdf [firstpage_image] =>[orig_patent_app_number] => 12534188 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/534188
Camshaft phaser intermediate locking pin and seat Aug 2, 2009 Issued
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