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] => 9276866 [patent_doc_number] => 20140026834 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-01-30 [patent_title] => 'VALVE SYSTEM' [patent_app_type] => utility [patent_app_number] => 14/045164 [patent_app_country] => US [patent_app_date] => 2013-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 9450 [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] =>[firstpage_image] =>[orig_patent_app_number] => 14045164 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/045164
Valve system Oct 2, 2013 Issued
Array ( [id] => 10880608 [patent_doc_number] => 08904980 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-12-09 [patent_title] => 'Valve timing control apparatus' [patent_app_type] => utility [patent_app_number] => 14/041297 [patent_app_country] => US [patent_app_date] => 2013-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 49 [patent_figures_cnt] => 65 [patent_no_of_words] => 22530 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 268 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14041297 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/041297
Valve timing control apparatus Sep 29, 2013 Issued
Array ( [id] => 11450831 [patent_doc_number] => 09574464 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-02-21 [patent_title] => 'Camshaft for an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 14/037994 [patent_app_country] => US [patent_app_date] => 2013-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2267 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14037994 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/037994
Camshaft for an internal combustion engine Sep 25, 2013 Issued
Array ( [id] => 9872885 [patent_doc_number] => 08960144 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-02-24 [patent_title] => 'Variable valve mechanism of internal combustion engine' [patent_app_type] => utility [patent_app_number] => 14/032116 [patent_app_country] => US [patent_app_date] => 2013-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 17 [patent_no_of_words] => 6628 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 211 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14032116 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/032116
Variable valve mechanism of internal combustion engine Sep 18, 2013 Issued
Array ( [id] => 10122988 [patent_doc_number] => 09157341 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-10-13 [patent_title] => 'Camshaft assembly and intermediate cam phasing position' [patent_app_type] => utility [patent_app_number] => 14/026522 [patent_app_country] => US [patent_app_date] => 2013-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 4598 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14026522 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/026522
Camshaft assembly and intermediate cam phasing position Sep 12, 2013 Issued
Array ( [id] => 11357869 [patent_doc_number] => 09534514 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-01-03 [patent_title] => 'Camshaft adjusting system' [patent_app_type] => utility [patent_app_number] => 14/430818 [patent_app_country] => US [patent_app_date] => 2013-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3695 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14430818 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/430818
Camshaft adjusting system Sep 8, 2013 Issued
Array ( [id] => 10407616 [patent_doc_number] => 20150292625 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-10-15 [patent_title] => 'CONTROL VALVE FOR A HYDRAULIC DEVICE WITH A REPLACEABLE HYDRAULICS UNIT' [patent_app_type] => utility [patent_app_number] => 14/442768 [patent_app_country] => US [patent_app_date] => 2013-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 1619 [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] =>[firstpage_image] =>[orig_patent_app_number] => 14442768 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/442768
CONTROL VALVE FOR A HYDRAULIC DEVICE WITH A REPLACEABLE HYDRAULICS UNIT Sep 5, 2013 Abandoned
Array ( [id] => 9393205 [patent_doc_number] => 20140090611 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-04-03 [patent_title] => 'VALVE TIMING CONTROLLER' [patent_app_type] => utility [patent_app_number] => 14/018454 [patent_app_country] => US [patent_app_date] => 2013-09-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 6877 [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] =>[firstpage_image] =>[orig_patent_app_number] => 14018454 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/018454
Valve timing controller Sep 4, 2013 Issued
Array ( [id] => 10355667 [patent_doc_number] => 20150240671 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-08-27 [patent_title] => 'VARIABLE VALVE DEVICE FOR INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 14/427114 [patent_app_country] => US [patent_app_date] => 2013-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 19 [patent_no_of_words] => 14699 [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] =>[firstpage_image] =>[orig_patent_app_number] => 14427114 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/427114
Variable valve device for internal combustion engine Sep 2, 2013 Issued
Array ( [id] => 11011707 [patent_doc_number] => 20160208660 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2016-07-21 [patent_title] => 'HYDRAULIC LASH ADJUSTER' [patent_app_type] => utility [patent_app_number] => 14/913111 [patent_app_country] => US [patent_app_date] => 2013-08-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3614 [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] =>[firstpage_image] =>[orig_patent_app_number] => 14913111 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/913111
Hydraulic lash adjuster Aug 20, 2013 Issued
Array ( [id] => 10855517 [patent_doc_number] => 08881702 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2014-11-11 [patent_title] => 'Camshaft phaser' [patent_app_type] => utility [patent_app_number] => 13/972403 [patent_app_country] => US [patent_app_date] => 2013-08-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 5144 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 308 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13972403 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/972403
Camshaft phaser Aug 20, 2013 Issued
Array ( [id] => 9379739 [patent_doc_number] => 20140083220 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-03-27 [patent_title] => 'INTERNAL COMBUSTION ENGINE AND BACKLASH ADJUSTING DEVICE OF CAM DRIVING GEAR MECHANISM' [patent_app_type] => utility [patent_app_number] => 13/965399 [patent_app_country] => US [patent_app_date] => 2013-08-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 9863 [patent_no_of_claims] => 16 [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] => 13965399 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/965399
Internal combustion engine and backlash adjusting device of cam driving gear mechanism Aug 12, 2013 Issued
Array ( [id] => 9305875 [patent_doc_number] => 20140044549 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-02-13 [patent_title] => 'DUCTILE COMPENSATION LAYER FOR BRITTLE COMPONENTS' [patent_app_type] => utility [patent_app_number] => 13/963037 [patent_app_country] => US [patent_app_date] => 2013-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3778 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13963037 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/963037
Ductile compensation layer for brittle components Aug 8, 2013 Issued
Array ( [id] => 11211696 [patent_doc_number] => 09440722 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2016-09-13 [patent_title] => 'Marine propeller with adjustable exhaust means' [patent_app_type] => utility [patent_app_number] => 13/963659 [patent_app_country] => US [patent_app_date] => 2013-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 16 [patent_no_of_words] => 2962 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 253 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13963659 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/963659
Marine propeller with adjustable exhaust means Aug 8, 2013 Issued
Array ( [id] => 9864039 [patent_doc_number] => 20150044059 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-02-12 [patent_title] => 'AIRFOIL FOR A TURBINE SYSTEM' [patent_app_type] => utility [patent_app_number] => 13/963322 [patent_app_country] => US [patent_app_date] => 2013-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2573 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13963322 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/963322
AIRFOIL FOR A TURBINE SYSTEM Aug 8, 2013 Abandoned
Array ( [id] => 9188654 [patent_doc_number] => 20130327969 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-12-12 [patent_title] => 'LINEAR VALVE ACTUATOR SYSTEM AND METHOD FOR CONTROLLING VALVE OPERATION' [patent_app_type] => utility [patent_app_number] => 13/963764 [patent_app_country] => US [patent_app_date] => 2013-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 6752 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13963764 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/963764
Linear valve actuator system and method for controlling valve operation Aug 8, 2013 Issued
Array ( [id] => 9864032 [patent_doc_number] => 20150044051 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-02-12 [patent_title] => 'HVAC Blower Impeller' [patent_app_type] => utility [patent_app_number] => 13/962678 [patent_app_country] => US [patent_app_date] => 2013-08-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 3121 [patent_no_of_claims] => 21 [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] => 13962678 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/962678
HVAC blower impeller Aug 7, 2013 Issued
Array ( [id] => 9305879 [patent_doc_number] => 20140044553 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-02-13 [patent_title] => 'BLADE FOR A CONTINUOUS-FLOW MACHINE AND A CONTINUOUS-FLOW MACHINE' [patent_app_type] => utility [patent_app_number] => 13/962649 [patent_app_country] => US [patent_app_date] => 2013-08-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4189 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13962649 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/962649
Blade for a continuous-flow machine and a continuous-flow machine Aug 7, 2013 Issued
Array ( [id] => 11332054 [patent_doc_number] => 09523292 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2016-12-20 [patent_title] => 'Valve control system for internal combustion engines and method of operation thereof' [patent_app_type] => utility [patent_app_number] => 14/419974 [patent_app_country] => US [patent_app_date] => 2013-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 4767 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14419974 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/419974
Valve control system for internal combustion engines and method of operation thereof Aug 5, 2013 Issued
Array ( [id] => 9290364 [patent_doc_number] => 20140033998 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-02-06 [patent_title] => 'VARIABLE VALVE PHASING LIFT & DURATION' [patent_app_type] => utility [patent_app_number] => 13/959073 [patent_app_country] => US [patent_app_date] => 2013-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3257 [patent_no_of_claims] => 21 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13959073 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/959073
Variable valve phasing lift and duration Aug 4, 2013 Issued
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