Search

Ching Chang

Examiner (ID: 110, 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] => 12080281 [patent_doc_number] => 20170342868 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-30 [patent_title] => 'APPARATUS, SYSTEMS AND METHODS FOR INDEXED HYDRAULIC ROLLER LIFTERS' [patent_app_type] => utility [patent_app_number] => 15/607065 [patent_app_country] => US [patent_app_date] => 2017-05-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 2817 [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] => 15607065 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/607065
APPARATUS, SYSTEMS AND METHODS FOR INDEXED HYDRAULIC ROLLER LIFTERS May 25, 2017 Abandoned
Array ( [id] => 12981859 [patent_doc_number] => 20170342869 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-30 [patent_title] => VARIABLE VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 15/604155 [patent_app_country] => US [patent_app_date] => 2017-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9288 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 276 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15604155 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/604155
Variable valve mechanism for internal combustion engine May 23, 2017 Issued
Array ( [id] => 13577871 [patent_doc_number] => 20180340484 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-11-29 [patent_title] => THREE STEP CAM DEFAULTING STRATEGY FOR ENGINE POSITION SENSORS [patent_app_type] => utility [patent_app_number] => 15/603794 [patent_app_country] => US [patent_app_date] => 2017-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4184 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15603794 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/603794
Three step cam defaulting strategy for engine position sensors May 23, 2017 Issued
Array ( [id] => 13238025 [patent_doc_number] => 10132206 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2018-11-20 [patent_title] => Common rocker arm for hydraulic lash adjuster and non-hydraulic lash adjuster [patent_app_type] => utility [patent_app_number] => 15/600253 [patent_app_country] => US [patent_app_date] => 2017-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 6828 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 237 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15600253 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/600253
Common rocker arm for hydraulic lash adjuster and non-hydraulic lash adjuster May 18, 2017 Issued
Array ( [id] => 13238033 [patent_doc_number] => 10132210 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2018-11-20 [patent_title] => Electric camshaft phaser with detent and method thereof [patent_app_type] => utility [patent_app_number] => 15/595984 [patent_app_country] => US [patent_app_date] => 2017-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 6871 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15595984 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/595984
Electric camshaft phaser with detent and method thereof May 15, 2017 Issued
Array ( [id] => 12138911 [patent_doc_number] => 20180016994 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-01-18 [patent_title] => 'CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 15/596029 [patent_app_country] => US [patent_app_date] => 2017-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 6002 [patent_no_of_claims] => 9 [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] => 15596029 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/596029
Control system for internal combustion engine May 15, 2017 Issued
Array ( [id] => 15851741 [patent_doc_number] => 10641140 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-05-05 [patent_title] => Hydraulic early engine exhaust valve opening system [patent_app_type] => utility [patent_app_number] => 15/593828 [patent_app_country] => US [patent_app_date] => 2017-05-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 16 [patent_no_of_words] => 10300 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [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] => 15593828 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/593828
Hydraulic early engine exhaust valve opening system May 11, 2017 Issued
Array ( [id] => 14089187 [patent_doc_number] => 10240490 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-03-26 [patent_title] => Oil control for rocker arm and hydraulic lash adjuster [patent_app_type] => utility [patent_app_number] => 15/588965 [patent_app_country] => US [patent_app_date] => 2017-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3361 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15588965 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/588965
Oil control for rocker arm and hydraulic lash adjuster May 7, 2017 Issued
Array ( [id] => 14612527 [patent_doc_number] => 10358952 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-07-23 [patent_title] => Hydraulic lash adjuster [patent_app_type] => utility [patent_app_number] => 15/583069 [patent_app_country] => US [patent_app_date] => 2017-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 11 [patent_no_of_words] => 2825 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15583069 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/583069
Hydraulic lash adjuster Apr 30, 2017 Issued
Array ( [id] => 12024327 [patent_doc_number] => 20170314426 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-02 [patent_title] => 'OUTPUT ELEMENT OF A CAMSHAFT ADJUSTER HAVING A PARTIAL STRUCTURING ON THE CONTACT SURFACE TO THE CAMSHAFT' [patent_app_type] => utility [patent_app_number] => 15/497476 [patent_app_country] => US [patent_app_date] => 2017-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2391 [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] => 15497476 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/497476
Output element of a camshaft adjuster having a partial structuring on the contact surface to the camshaft Apr 25, 2017 Issued
Array ( [id] => 14262515 [patent_doc_number] => 10280812 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2019-05-07 [patent_title] => Cylinder head and camshaft configurations for marine engines [patent_app_type] => utility [patent_app_number] => 15/492687 [patent_app_country] => US [patent_app_date] => 2017-04-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2509 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [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] => 15492687 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/492687
Cylinder head and camshaft configurations for marine engines Apr 19, 2017 Issued
Array ( [id] => 12145351 [patent_doc_number] => 09879596 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2018-01-30 [patent_title] => 'Actuator assembly having at least one driven gear coupled to a housing' [patent_app_type] => utility [patent_app_number] => 15/492051 [patent_app_country] => US [patent_app_date] => 2017-04-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 14 [patent_no_of_words] => 7977 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 275 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15492051 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/492051
Actuator assembly having at least one driven gear coupled to a housing Apr 19, 2017 Issued
Array ( [id] => 11943923 [patent_doc_number] => 20170248073 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-08-31 [patent_title] => 'CUSTOM VVA ROCKER ARMS FOR LEFT HAND AND RIGHT HAND ORIENTATIONS' [patent_app_type] => utility [patent_app_number] => 15/484388 [patent_app_country] => US [patent_app_date] => 2017-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 94 [patent_figures_cnt] => 94 [patent_no_of_words] => 48510 [patent_no_of_claims] => 19 [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] => 15484388 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/484388
Custom VVA rocker arms for left hand and right hand orientations Apr 10, 2017 Issued
Array ( [id] => 14215409 [patent_doc_number] => 20190120089 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-04-25 [patent_title] => VARIABLE VALVE TRAIN [patent_app_type] => utility [patent_app_number] => 16/089900 [patent_app_country] => US [patent_app_date] => 2017-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15413 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16089900 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/089900
Variable valve train Mar 29, 2017 Issued
Array ( [id] => 15728095 [patent_doc_number] => 10612474 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-04-07 [patent_title] => Controller for multi-cylinder engine [patent_app_type] => utility [patent_app_number] => 16/086520 [patent_app_country] => US [patent_app_date] => 2017-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 6287 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 252 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16086520 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/086520
Controller for multi-cylinder engine Mar 28, 2017 Issued
Array ( [id] => 14103791 [patent_doc_number] => 20190093571 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-03-28 [patent_title] => ENGINE CONTROL DEVICE [patent_app_type] => utility [patent_app_number] => 16/084547 [patent_app_country] => US [patent_app_date] => 2017-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5162 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16084547 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/084547
ENGINE CONTROL DEVICE Mar 28, 2017 Abandoned
Array ( [id] => 13155069 [patent_doc_number] => 10094249 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2018-10-09 [patent_title] => Rocker arm with integrated gear train [patent_app_type] => utility [patent_app_number] => 15/462091 [patent_app_country] => US [patent_app_date] => 2017-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 3556 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15462091 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/462091
Rocker arm with integrated gear train Mar 16, 2017 Issued
Array ( [id] => 13052509 [patent_doc_number] => 10047639 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-08-14 [patent_title] => Camshaft and manufacturing method therefor [patent_app_type] => utility [patent_app_number] => 15/458455 [patent_app_country] => US [patent_app_date] => 2017-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 8257 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15458455 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/458455
Camshaft and manufacturing method therefor Mar 13, 2017 Issued
Array ( [id] => 15754849 [patent_doc_number] => 10619523 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-04-14 [patent_title] => Cam shaft for engine and method for manufacturing same [patent_app_type] => utility [patent_app_number] => 15/761698 [patent_app_country] => US [patent_app_date] => 2017-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 23 [patent_no_of_words] => 16666 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15761698 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/761698
Cam shaft for engine and method for manufacturing same Mar 12, 2017 Issued
Array ( [id] => 14278881 [patent_doc_number] => 20190136725 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-09 [patent_title] => Valve Drive Device, in Particular for an Internal Combustion Engine [patent_app_type] => utility [patent_app_number] => 16/098710 [patent_app_country] => US [patent_app_date] => 2017-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3183 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16098710 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/098710
Valve drive device, in particular for an internal combustion engine Mar 5, 2017 Issued
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