Search

Ching Chang

Examiner (ID: 13382, 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] => 5781539 [patent_doc_number] => 20020157625 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-10-31 [patent_title] => 'Electrically rotatable shaft' [patent_app_type] => new [patent_app_number] => 10/128900 [patent_app_country] => US [patent_app_date] => 2002-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2089 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0157/20020157625.pdf [firstpage_image] =>[orig_patent_app_number] => 10128900 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/128900
Electrically rotatable shaft Apr 23, 2002 Issued
Array ( [id] => 5781541 [patent_doc_number] => 20020157627 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-10-31 [patent_title] => 'Electrically rotatable shaft' [patent_app_type] => new [patent_app_number] => 10/128877 [patent_app_country] => US [patent_app_date] => 2002-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1620 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0157/20020157627.pdf [firstpage_image] =>[orig_patent_app_number] => 10128877 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/128877
Electrically rotatable shaft Apr 23, 2002 Issued
Array ( [id] => 1316633 [patent_doc_number] => 06598571 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-07-29 [patent_title] => 'Cam follower with roller' [patent_app_type] => B1 [patent_app_number] => 10/127757 [patent_app_country] => US [patent_app_date] => 2002-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 11 [patent_no_of_words] => 6398 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/598/06598571.pdf [firstpage_image] =>[orig_patent_app_number] => 10127757 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/127757
Cam follower with roller Apr 22, 2002 Issued
Array ( [id] => 1391533 [patent_doc_number] => 06516763 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-02-11 [patent_title] => 'Method of controlling a device that varies the valve control times an internal combustion engine, especially of a camshaft adjusting device with hydraulically releaseable start lock' [patent_app_type] => B1 [patent_app_number] => 10/019549 [patent_app_country] => US [patent_app_date] => 2002-04-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 6019 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 896 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/516/06516763.pdf [firstpage_image] =>[orig_patent_app_number] => 10019549 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/019549
Method of controlling a device that varies the valve control times an internal combustion engine, especially of a camshaft adjusting device with hydraulically releaseable start lock Apr 15, 2002 Issued
Array ( [id] => 973439 [patent_doc_number] => 06932036 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-08-23 [patent_title] => 'Electromagnetic brake cooling structure of phase variable device in car engine' [patent_app_type] => utility [patent_app_number] => 10/478108 [patent_app_country] => US [patent_app_date] => 2002-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 12 [patent_no_of_words] => 6895 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 339 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/932/06932036.pdf [firstpage_image] =>[orig_patent_app_number] => 10478108 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/478108
Electromagnetic brake cooling structure of phase variable device in car engine Apr 11, 2002 Issued
Array ( [id] => 1298001 [patent_doc_number] => 06615782 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-09-09 [patent_title] => 'Two-step finger follower rocker arm' [patent_app_type] => B1 [patent_app_number] => 10/121720 [patent_app_country] => US [patent_app_date] => 2002-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 13 [patent_no_of_words] => 2549 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 251 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/615/06615782.pdf [firstpage_image] =>[orig_patent_app_number] => 10121720 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/121720
Two-step finger follower rocker arm Apr 11, 2002 Issued
Array ( [id] => 1324309 [patent_doc_number] => 06591802 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-07-15 [patent_title] => 'Variable valve actuating mechanism having a rotary hydraulic lash adjuster' [patent_app_type] => B1 [patent_app_number] => 10/120097 [patent_app_country] => US [patent_app_date] => 2002-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 4188 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/591/06591802.pdf [firstpage_image] =>[orig_patent_app_number] => 10120097 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/120097
Variable valve actuating mechanism having a rotary hydraulic lash adjuster Apr 9, 2002 Issued
Array ( [id] => 6694317 [patent_doc_number] => 20030106511 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-06-12 [patent_title] => 'Method of controlling an electromagnetic valve actuator' [patent_app_type] => new [patent_app_number] => 10/109350 [patent_app_country] => US [patent_app_date] => 2002-03-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 2577 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0106/20030106511.pdf [firstpage_image] =>[orig_patent_app_number] => 10109350 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/109350
Method of controlling an electromagnetic valve actuator Mar 27, 2002 Issued
Array ( [id] => 5899470 [patent_doc_number] => 20020139331 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-10-03 [patent_title] => 'Variable valve-timing engine' [patent_app_type] => new [patent_app_number] => 10/106450 [patent_app_country] => US [patent_app_date] => 2002-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 5078 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0139/20020139331.pdf [firstpage_image] =>[orig_patent_app_number] => 10106450 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/106450
Variable valve-timing engine Mar 26, 2002 Issued
Array ( [id] => 1256259 [patent_doc_number] => 06662769 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-12-16 [patent_title] => 'Valve timing control device' [patent_app_type] => B2 [patent_app_number] => 10/102938 [patent_app_country] => US [patent_app_date] => 2002-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 20 [patent_no_of_words] => 5558 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/662/06662769.pdf [firstpage_image] =>[orig_patent_app_number] => 10102938 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/102938
Valve timing control device Mar 21, 2002 Issued
Array ( [id] => 1234823 [patent_doc_number] => 06684830 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-02-03 [patent_title] => 'Variable valve timing engine' [patent_app_type] => B2 [patent_app_number] => 10/101700 [patent_app_country] => US [patent_app_date] => 2002-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 11 [patent_no_of_words] => 8361 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/684/06684830.pdf [firstpage_image] =>[orig_patent_app_number] => 10101700 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/101700
Variable valve timing engine Mar 20, 2002 Issued
Array ( [id] => 1314326 [patent_doc_number] => 06601555 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-08-05 [patent_title] => 'Sheet metal rocker arm, manufacturing method thereof, cam follower with said rocker arm, and assembling method thereof' [patent_app_type] => B2 [patent_app_number] => 10/101868 [patent_app_country] => US [patent_app_date] => 2002-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 53 [patent_no_of_words] => 16344 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 262 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/601/06601555.pdf [firstpage_image] =>[orig_patent_app_number] => 10101868 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/101868
Sheet metal rocker arm, manufacturing method thereof, cam follower with said rocker arm, and assembling method thereof Mar 20, 2002 Issued
Array ( [id] => 1294803 [patent_doc_number] => 06619250 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-09-16 [patent_title] => 'Desmodromic valve actuation system' [patent_app_type] => B2 [patent_app_number] => 10/099117 [patent_app_country] => US [patent_app_date] => 2002-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 37 [patent_no_of_words] => 6371 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/619/06619250.pdf [firstpage_image] =>[orig_patent_app_number] => 10099117 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/099117
Desmodromic valve actuation system Mar 14, 2002 Issued
Array ( [id] => 6298308 [patent_doc_number] => 20020092489 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-07-18 [patent_title] => 'Valve timing control apparatus for internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/095571 [patent_app_country] => US [patent_app_date] => 2002-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 10389 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0092/20020092489.pdf [firstpage_image] =>[orig_patent_app_number] => 10095571 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/095571
Valve timing control apparatus for internal combustion engine Mar 12, 2002 Issued
Array ( [id] => 1243342 [patent_doc_number] => 06675752 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-01-13 [patent_title] => 'Internal combustion engine with hydraulic camshaft adjuster for adjusting the camshaft' [patent_app_type] => B1 [patent_app_number] => 10/088453 [patent_app_country] => US [patent_app_date] => 2002-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 3835 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/675/06675752.pdf [firstpage_image] =>[orig_patent_app_number] => 10088453 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/088453
Internal combustion engine with hydraulic camshaft adjuster for adjusting the camshaft Mar 12, 2002 Issued
Array ( [id] => 1375972 [patent_doc_number] => 06532925 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-03-18 [patent_title] => 'Stamped valve spring and retainer' [patent_app_type] => B1 [patent_app_number] => 10/095247 [patent_app_country] => US [patent_app_date] => 2002-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 9 [patent_no_of_words] => 2438 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/532/06532925.pdf [firstpage_image] =>[orig_patent_app_number] => 10095247 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/095247
Stamped valve spring and retainer Mar 10, 2002 Issued
Array ( [id] => 970281 [patent_doc_number] => 06935292 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-08-30 [patent_title] => 'Camshaft with curvature' [patent_app_type] => utility [patent_app_number] => 10/093592 [patent_app_country] => US [patent_app_date] => 2002-03-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 2523 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 126 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/935/06935292.pdf [firstpage_image] =>[orig_patent_app_number] => 10093592 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/093592
Camshaft with curvature Mar 7, 2002 Issued
Array ( [id] => 6708282 [patent_doc_number] => 20030168031 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-09-11 [patent_title] => 'Fluid system for an internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/092815 [patent_app_country] => US [patent_app_date] => 2002-03-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2146 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 37 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0168/20030168031.pdf [firstpage_image] =>[orig_patent_app_number] => 10092815 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/092815
Fluid system for an internal combustion engine Mar 6, 2002 Abandoned
Array ( [id] => 1324265 [patent_doc_number] => 06591796 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-07-15 [patent_title] => 'Combination PCV baffle and retainer for solenoid valves in a hydraulic manifold assembly for variable activation and deactivation of engine valves' [patent_app_type] => B1 [patent_app_number] => 10/080235 [patent_app_country] => US [patent_app_date] => 2002-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 13 [patent_no_of_words] => 2755 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/591/06591796.pdf [firstpage_image] =>[orig_patent_app_number] => 10080235 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/080235
Combination PCV baffle and retainer for solenoid valves in a hydraulic manifold assembly for variable activation and deactivation of engine valves Feb 20, 2002 Issued
Array ( [id] => 6514808 [patent_doc_number] => 20020108593 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-08-15 [patent_title] => 'Camshaft rotational phase detecting apparatus and cylinder intake air quantity calculating apparatus for engine' [patent_app_type] => new [patent_app_number] => 10/062566 [patent_app_country] => US [patent_app_date] => 2002-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 6611 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0108/20020108593.pdf [firstpage_image] =>[orig_patent_app_number] => 10062566 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/062566
Camshaft rotational phase detecting apparatus and cylinder intake air quantity calculating apparatus for engine Feb 4, 2002 Issued
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