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] => 9321859 [patent_doc_number] => 08656872 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2014-02-25 [patent_title] => 'Variable lift hydraulic valve train' [patent_app_type] => utility [patent_app_number] => 13/230372 [patent_app_country] => US [patent_app_date] => 2011-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 2854 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13230372 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/230372
Variable lift hydraulic valve train Sep 11, 2011 Issued
Array ( [id] => 9187973 [patent_doc_number] => 20130327288 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-12-12 [patent_title] => 'CAMSHAFT ADJUSTER FOR AN INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 13/884453 [patent_app_country] => US [patent_app_date] => 2011-09-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3600 [patent_no_of_claims] => 8 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13884453 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/884453
Camshaft adjuster for an internal combustion engine Sep 1, 2011 Issued
Array ( [id] => 9638266 [patent_doc_number] => 20140216375 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-08-07 [patent_title] => 'VEHICLE ENGINE CONTROL DEVICE' [patent_app_type] => utility [patent_app_number] => 14/342279 [patent_app_country] => US [patent_app_date] => 2011-09-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 8568 [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] =>[firstpage_image] =>[orig_patent_app_number] => 14342279 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/342279
Vehicle engine control device Sep 1, 2011 Issued
Array ( [id] => 9660141 [patent_doc_number] => 08807104 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-08-19 [patent_title] => 'Mechanically controllable valve operating mechanism, and mechanically controllable valve operating mechanism arrangement' [patent_app_type] => utility [patent_app_number] => 13/879807 [patent_app_country] => US [patent_app_date] => 2011-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2904 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 215 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13879807 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/879807
Mechanically controllable valve operating mechanism, and mechanically controllable valve operating mechanism arrangement Aug 30, 2011 Issued
Array ( [id] => 9103600 [patent_doc_number] => 20130276731 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-10-24 [patent_title] => 'VARIABLE VALVE OPERATING APPARATUS FOR INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 13/824496 [patent_app_country] => US [patent_app_date] => 2011-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 17380 [patent_no_of_claims] => 8 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13824496 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/824496
Variable valve operating apparatus for internal combustion engine Aug 28, 2011 Issued
Array ( [id] => 8959728 [patent_doc_number] => 20130199330 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-08-08 [patent_title] => 'ACTUATOR DEVICE FOR ADJUSTING A SLIDING CAM SYSTEM' [patent_app_type] => utility [patent_app_number] => 13/877574 [patent_app_country] => US [patent_app_date] => 2011-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 2479 [patent_no_of_claims] => 14 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13877574 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/877574
Actuator device for adjusting a sliding cam system Aug 21, 2011 Issued
Array ( [id] => 8668289 [patent_doc_number] => 20130042826 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-02-21 [patent_title] => 'ENGINE ASSEMBLY INCLUDING VALVETRAIN LUBRICATION SYSTEM' [patent_app_type] => utility [patent_app_number] => 13/211754 [patent_app_country] => US [patent_app_date] => 2011-08-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2358 [patent_no_of_claims] => 20 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13211754 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/211754
Engine assembly including valvetrain lubrication system Aug 16, 2011 Issued
Array ( [id] => 9599996 [patent_doc_number] => 20140196677 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-07-17 [patent_title] => 'PHASE VARYING APPARATUS FOR AUTOMOBILE ENGINE' [patent_app_type] => utility [patent_app_number] => 14/238380 [patent_app_country] => US [patent_app_date] => 2011-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 9743 [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] =>[firstpage_image] =>[orig_patent_app_number] => 14238380 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/238380
Phase varying apparatus for automobile engine Aug 11, 2011 Issued
Array ( [id] => 7771717 [patent_doc_number] => 20120037102 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-02-16 [patent_title] => 'Valve drive control device' [patent_app_type] => utility [patent_app_number] => 13/136759 [patent_app_country] => US [patent_app_date] => 2011-08-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3376 [patent_no_of_claims] => 14 [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/A1/0037/20120037102.pdf [firstpage_image] =>[orig_patent_app_number] => 13136759 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/136759
Valve drive control device Aug 9, 2011 Issued
Array ( [id] => 9373710 [patent_doc_number] => 08677960 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-03-25 [patent_title] => 'Camshaft adjuster, in particular with camshaft' [patent_app_type] => utility [patent_app_number] => 13/136570 [patent_app_country] => US [patent_app_date] => 2011-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 8776 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 220 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13136570 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/136570
Camshaft adjuster, in particular with camshaft Aug 2, 2011 Issued
Array ( [id] => 7748657 [patent_doc_number] => 20120024248 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-02-02 [patent_title] => 'DRAG LEVER' [patent_app_type] => utility [patent_app_number] => 13/195933 [patent_app_country] => US [patent_app_date] => 2011-08-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2149 [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/A1/0024/20120024248.pdf [firstpage_image] =>[orig_patent_app_number] => 13195933 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/195933
Drag lever Aug 1, 2011 Issued
Array ( [id] => 9606070 [patent_doc_number] => 08783219 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-07-22 [patent_title] => 'Switchable cam follower' [patent_app_type] => utility [patent_app_number] => 13/883873 [patent_app_country] => US [patent_app_date] => 2011-08-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2308 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 347 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13883873 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/883873
Switchable cam follower Aug 1, 2011 Issued
Array ( [id] => 9507908 [patent_doc_number] => 20140144400 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-05-29 [patent_title] => 'VALVE ACTUATION MECHANISM AND AUTOMOTIVE VEHICLE COMPRISING SUCH A VALVE ACTUATION MECHANISM' [patent_app_type] => utility [patent_app_number] => 14/127270 [patent_app_country] => US [patent_app_date] => 2011-07-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5268 [patent_no_of_claims] => 20 [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] =>[firstpage_image] =>[orig_patent_app_number] => 14127270 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/127270
Valve actuation mechanism and automotive vehicle comprising such a valve actuation mechanism Jul 21, 2011 Issued
Array ( [id] => 9674796 [patent_doc_number] => 08813696 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-08-26 [patent_title] => 'Electro-hydraulic valve train' [patent_app_type] => utility [patent_app_number] => 13/181136 [patent_app_country] => US [patent_app_date] => 2011-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 7076 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13181136 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/181136
Electro-hydraulic valve train Jul 11, 2011 Issued
Array ( [id] => 8811116 [patent_doc_number] => 20130112161 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-05-09 [patent_title] => 'VALVE TIMING CONTROL APPARATUS AND VALVE TIMING CONTROL MECHANISM' [patent_app_type] => utility [patent_app_number] => 13/810180 [patent_app_country] => US [patent_app_date] => 2011-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 9537 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13810180 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/810180
Valve timing control apparatus and valve timing control mechanism Jul 6, 2011 Issued
Array ( [id] => 7748652 [patent_doc_number] => 20120024245 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-02-02 [patent_title] => 'VALVE TRAIN OF AN INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 13/167063 [patent_app_country] => US [patent_app_date] => 2011-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4184 [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/A1/0024/20120024245.pdf [firstpage_image] =>[orig_patent_app_number] => 13167063 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/167063
Valve train of an internal combustion engine Jun 22, 2011 Issued
Array ( [id] => 9230936 [patent_doc_number] => 08596236 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-12-03 [patent_title] => 'Variable valve driving apparatus' [patent_app_type] => utility [patent_app_number] => 13/167273 [patent_app_country] => US [patent_app_date] => 2011-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2218 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13167273 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/167273
Variable valve driving apparatus Jun 22, 2011 Issued
Array ( [id] => 9411517 [patent_doc_number] => 08695551 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-04-15 [patent_title] => 'Hydraulic lash adjuster including band of radial recirculation openings' [patent_app_type] => utility [patent_app_number] => 13/166841 [patent_app_country] => US [patent_app_date] => 2011-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3547 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13166841 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/166841
Hydraulic lash adjuster including band of radial recirculation openings Jun 22, 2011 Issued
Array ( [id] => 9399710 [patent_doc_number] => 08689755 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-04-08 [patent_title] => 'Cam and associated camshaft' [patent_app_type] => utility [patent_app_number] => 13/166014 [patent_app_country] => US [patent_app_date] => 2011-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 4 [patent_no_of_words] => 1241 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 49 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13166014 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/166014
Cam and associated camshaft Jun 21, 2011 Issued
Array ( [id] => 9373714 [patent_doc_number] => 08677964 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-03-25 [patent_title] => 'Variable valve lift apparatus' [patent_app_type] => utility [patent_app_number] => 13/166554 [patent_app_country] => US [patent_app_date] => 2011-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2291 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13166554 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/166554
Variable valve lift apparatus Jun 21, 2011 Issued
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