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] => 11250835 [patent_doc_number] => 09476327 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2016-10-25 [patent_title] => 'Camshaft adjusting device' [patent_app_type] => utility [patent_app_number] => 14/394071 [patent_app_country] => US [patent_app_date] => 2013-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3634 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 14394071 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/394071
Camshaft adjusting device Mar 21, 2013 Issued
Array ( [id] => 9753074 [patent_doc_number] => 20140283774 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-09-25 [patent_title] => 'ROCKER ARM ASSEMBLY AND METHOD OF LUBRICATING A VALVE TRAIN' [patent_app_type] => utility [patent_app_number] => 13/848844 [patent_app_country] => US [patent_app_date] => 2013-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3976 [patent_no_of_claims] => 15 [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] => 13848844 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/848844
ROCKER ARM ASSEMBLY AND METHOD OF LUBRICATING A VALVE TRAIN Mar 21, 2013 Abandoned
Array ( [id] => 10267753 [patent_doc_number] => 20150152751 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-06-04 [patent_title] => 'CAMSHAFT ADJUSTER' [patent_app_type] => utility [patent_app_number] => 14/397656 [patent_app_country] => US [patent_app_date] => 2013-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 2953 [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] => 14397656 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/397656
Camshaft adjuster Mar 20, 2013 Issued
Array ( [id] => 9913275 [patent_doc_number] => 20150068478 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2015-03-12 [patent_title] => 'CAMSHAFT ADJUSTER' [patent_app_type] => utility [patent_app_number] => 14/395003 [patent_app_country] => US [patent_app_date] => 2013-03-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 4274 [patent_no_of_claims] => 10 [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] => 14395003 [rel_patent_id] =>[rel_patent_doc_number] =>)
14/395003
Camshaft adjuster Mar 19, 2013 Issued
Array ( [id] => 9689702 [patent_doc_number] => 08820284 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-09-02 [patent_title] => 'Variable valve gear for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 13/847380 [patent_app_country] => US [patent_app_date] => 2013-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 18 [patent_no_of_words] => 13000 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13847380 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/847380
Variable valve gear for internal combustion engine Mar 18, 2013 Issued
Array ( [id] => 9050136 [patent_doc_number] => 20130247850 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-09-26 [patent_title] => 'CONTROL UNIT FOR VARIABLE VALVE TIMING MECHANISM AND CONTROL METHOD FOR VARIABLE VALVE TIMING MECHANISM' [patent_app_type] => utility [patent_app_number] => 13/845815 [patent_app_country] => US [patent_app_date] => 2013-03-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 6596 [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] => 13845815 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/845815
Control unit for variable valve timing mechanism and control method for variable valve timing mechanism Mar 17, 2013 Issued
Array ( [id] => 9117214 [patent_doc_number] => 20130284136 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-10-31 [patent_title] => 'NESTED LOCKING MECHANISM FOR SWITCHABLE ROLLER FINGER FOLLOWER' [patent_app_type] => utility [patent_app_number] => 13/837382 [patent_app_country] => US [patent_app_date] => 2013-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 18 [patent_no_of_words] => 8567 [patent_no_of_claims] => 29 [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] => 13837382 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/837382
Nested locking mechanism for switchable roller finger follower Mar 14, 2013 Issued
Array ( [id] => 9197467 [patent_doc_number] => 20130336782 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-12-19 [patent_title] => 'TRIPOD BUCKLE FOR SPLIT FAIRING OF A GAS TURBINE ENGINE' [patent_app_type] => utility [patent_app_number] => 13/832458 [patent_app_country] => US [patent_app_date] => 2013-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2524 [patent_no_of_claims] => 19 [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] => 13832458 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/832458
Tripod buckle for split fairing of a gas turbine engine Mar 14, 2013 Issued
Array ( [id] => 9725562 [patent_doc_number] => 20140261265 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-09-18 [patent_title] => 'LOW FRICTION CAMSHAFT WITH ELECTRIC PHASER' [patent_app_type] => utility [patent_app_number] => 13/829985 [patent_app_country] => US [patent_app_date] => 2013-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3172 [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] => 13829985 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/829985
LOW FRICTION CAMSHAFT WITH ELECTRIC PHASER Mar 13, 2013 Abandoned
Array ( [id] => 9821963 [patent_doc_number] => 08931443 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-01-13 [patent_title] => 'Variable displacement solenoid control' [patent_app_type] => utility [patent_app_number] => 13/830205 [patent_app_country] => US [patent_app_date] => 2013-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 8762 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13830205 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/830205
Variable displacement solenoid control Mar 13, 2013 Issued
Array ( [id] => 9646511 [patent_doc_number] => 08800515 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2014-08-12 [patent_title] => 'Cam torque actuated variable camshaft timing device with a bi-directional oil pressure bias circuit' [patent_app_type] => utility [patent_app_number] => 13/799731 [patent_app_country] => US [patent_app_date] => 2013-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4765 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 333 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13799731 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/799731
Cam torque actuated variable camshaft timing device with a bi-directional oil pressure bias circuit Mar 12, 2013 Issued
Array ( [id] => 9715548 [patent_doc_number] => 20140251246 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-09-11 [patent_title] => 'METHOD AND SYSTEMS FOR VARIABLE VALVE TIMING FOR A V-ENGINE WITH A SINGLE CENTRAL CAMSHAFT' [patent_app_type] => utility [patent_app_number] => 13/786530 [patent_app_country] => US [patent_app_date] => 2013-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 10060 [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] => 13786530 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/786530
Method and systems for variable valve timing for a V-engine with a single central camshaft Mar 5, 2013 Issued
Array ( [id] => 9037281 [patent_doc_number] => 20130239919 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-09-19 [patent_title] => 'THREE ARM FINGER FOLLOWER WITH CAM SWITCHING PROFILE AND COMPRESSION LOST MOTION SPRINGS' [patent_app_type] => utility [patent_app_number] => 13/783532 [patent_app_country] => US [patent_app_date] => 2013-03-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2601 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13783532 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/783532
Three arm finger follower with cam switching profile and compression lost motion springs Mar 3, 2013 Issued
Array ( [id] => 10169821 [patent_doc_number] => 09200524 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-12-01 [patent_title] => 'Steam turbine rotor' [patent_app_type] => utility [patent_app_number] => 13/777373 [patent_app_country] => US [patent_app_date] => 2013-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 4668 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 205 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13777373 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/777373
Steam turbine rotor Feb 25, 2013 Issued
Array ( [id] => 9550080 [patent_doc_number] => 08757118 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-06-24 [patent_title] => 'Shim for valve drive mechanism, and valve drive mechanism' [patent_app_type] => utility [patent_app_number] => 13/773870 [patent_app_country] => US [patent_app_date] => 2013-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 3517 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13773870 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/773870
Shim for valve drive mechanism, and valve drive mechanism Feb 21, 2013 Issued
Array ( [id] => 10156261 [patent_doc_number] => 09188024 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-11-17 [patent_title] => 'Exhaust section for bypass gas turbine engines' [patent_app_type] => utility [patent_app_number] => 13/773670 [patent_app_country] => US [patent_app_date] => 2013-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 3303 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 247 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13773670 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/773670
Exhaust section for bypass gas turbine engines Feb 21, 2013 Issued
Array ( [id] => 10523175 [patent_doc_number] => 09249677 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2016-02-02 [patent_title] => 'Blade pitch-controlled wind turbine system' [patent_app_type] => utility [patent_app_number] => 13/774015 [patent_app_country] => US [patent_app_date] => 2013-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2606 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13774015 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/774015
Blade pitch-controlled wind turbine system Feb 21, 2013 Issued
Array ( [id] => 10588167 [patent_doc_number] => 09309772 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2016-04-12 [patent_title] => 'Hybrid turbine blade including multiple insert sections' [patent_app_type] => utility [patent_app_number] => 13/774581 [patent_app_country] => US [patent_app_date] => 2013-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 7009 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13774581 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/774581
Hybrid turbine blade including multiple insert sections Feb 21, 2013 Issued
Array ( [id] => 9685130 [patent_doc_number] => 20140241893 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2014-08-28 [patent_title] => 'SYSTEM FOR SPECIFYING AN INSTALLATION POSITION OF ROTOR BLADES, SECURING ELEMENT, ROTOR BLADE, TURBOMACHINE, AND METHOD' [patent_app_type] => utility [patent_app_number] => 13/775115 [patent_app_country] => US [patent_app_date] => 2013-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3571 [patent_no_of_claims] => 19 [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] => 13775115 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/775115
System for specifying an installation position of rotor blades, securing element, rotor blade, turbomachine, and method Feb 21, 2013 Issued
Array ( [id] => 10528781 [patent_doc_number] => 09254905 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2016-02-09 [patent_title] => 'Cooling fluid pump for cooling a marine engine' [patent_app_type] => utility [patent_app_number] => 13/772088 [patent_app_country] => US [patent_app_date] => 2013-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 3802 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13772088 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/772088
Cooling fluid pump for cooling a marine engine Feb 19, 2013 Issued
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