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] => 7354915 [patent_doc_number] => 20040003788 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-01-08 [patent_title] => 'Control method for electro-hydraulic control valves over temperature range' [patent_app_type] => new [patent_app_number] => 10/408999 [patent_app_country] => US [patent_app_date] => 2003-04-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 8003 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0003/20040003788.pdf [firstpage_image] =>[orig_patent_app_number] => 10408999 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/408999
Control method for electro-hydraulic control valves over temperature range Apr 3, 2003 Issued
Array ( [id] => 930245 [patent_doc_number] => 06978747 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-12-27 [patent_title] => 'Hydraulic actuator cartridge for a valve' [patent_app_type] => utility [patent_app_number] => 10/404482 [patent_app_country] => US [patent_app_date] => 2003-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 14 [patent_no_of_words] => 3311 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/978/06978747.pdf [firstpage_image] =>[orig_patent_app_number] => 10404482 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/404482
Hydraulic actuator cartridge for a valve Mar 31, 2003 Issued
Array ( [id] => 6806689 [patent_doc_number] => 20030196628 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-10-23 [patent_title] => 'VCT MECHANISM HAVING A LOCK PIN ADAPTED TO RELEASE AT A PRESSURE HIGHER THAN THE PRESSURE REQUIRED TO HOLD THE LOCK PIN IN THE RELEASED POSITION' [patent_app_type] => new [patent_app_number] => 10/403859 [patent_app_country] => US [patent_app_date] => 2003-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1953 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 405 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0196/20030196628.pdf [firstpage_image] =>[orig_patent_app_number] => 10403859 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/403859
VCT mechanism having a lock pin adapted to release at a pressure higher than the pressure required to hold the lock pin in the released position Mar 30, 2003 Issued
Array ( [id] => 6806688 [patent_doc_number] => 20030196627 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-10-23 [patent_title] => 'Reed valve VCT phaser with worm trails' [patent_app_type] => new [patent_app_number] => 10/391328 [patent_app_country] => US [patent_app_date] => 2003-03-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 1770 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 205 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0196/20030196627.pdf [firstpage_image] =>[orig_patent_app_number] => 10391328 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/391328
Reed valve VCT phaser with worm trails Mar 17, 2003 Issued
Array ( [id] => 1230860 [patent_doc_number] => 06688266 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-02-10 [patent_title] => 'Pressurized sealing groove for deactivating roller-follower' [patent_app_type] => B1 [patent_app_number] => 10/390482 [patent_app_country] => US [patent_app_date] => 2003-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4082 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 277 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/688/06688266.pdf [firstpage_image] =>[orig_patent_app_number] => 10390482 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/390482
Pressurized sealing groove for deactivating roller-follower Mar 16, 2003 Issued
Array ( [id] => 6794015 [patent_doc_number] => 20030172888 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-09-18 [patent_title] => 'Variable valve timing control apparatus and method for an internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/384632 [patent_app_country] => US [patent_app_date] => 2003-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 6306 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0172/20030172888.pdf [firstpage_image] =>[orig_patent_app_number] => 10384632 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/384632
Variable valve timing control apparatus and method for an internal combustion engine Mar 10, 2003 Issued
Array ( [id] => 7389763 [patent_doc_number] => 20040173173 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-09-09 [patent_title] => 'Method and apparatus to control a variable valve control device' [patent_app_type] => new [patent_app_number] => 10/379947 [patent_app_country] => US [patent_app_date] => 2003-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4019 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0173/20040173173.pdf [firstpage_image] =>[orig_patent_app_number] => 10379947 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/379947
Method and apparatus to control a variable valve control device Mar 4, 2003 Issued
Array ( [id] => 7085770 [patent_doc_number] => 20050005881 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-01-13 [patent_title] => 'Device for the control of gas exchange valves' [patent_app_type] => utility [patent_app_number] => 10/488446 [patent_app_country] => US [patent_app_date] => 2003-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3997 [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] => publications/A1/0005/20050005881.pdf [firstpage_image] =>[orig_patent_app_number] => 10488446 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/488446
Device for the control of gas exchange valves Mar 4, 2003 Issued
Array ( [id] => 7029332 [patent_doc_number] => 20050028763 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-02-10 [patent_title] => 'Hydraulic valve actuator for acturing a gas-exchange valve' [patent_app_type] => utility [patent_app_number] => 10/493858 [patent_app_country] => US [patent_app_date] => 2003-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5504 [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] => publications/A1/0028/20050028763.pdf [firstpage_image] =>[orig_patent_app_number] => 10493858 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/493858
Hydraulic valve actuator for actuating a gas-exchange valve Mar 4, 2003 Issued
Array ( [id] => 6806686 [patent_doc_number] => 20030196625 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-10-23 [patent_title] => 'Air venting mechanism for variable camshaft timing devices' [patent_app_type] => new [patent_app_number] => 10/376899 [patent_app_country] => US [patent_app_date] => 2003-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 6898 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0196/20030196625.pdf [firstpage_image] =>[orig_patent_app_number] => 10376899 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/376899
Air venting mechanism for variable camshaft timing devices Feb 27, 2003 Issued
Array ( [id] => 6708280 [patent_doc_number] => 20030168029 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-09-11 [patent_title] => 'Electromagnetically driven valve control apparatus and method' [patent_app_type] => new [patent_app_number] => 10/373812 [patent_app_country] => US [patent_app_date] => 2003-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 14065 [patent_no_of_claims] => 34 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0168/20030168029.pdf [firstpage_image] =>[orig_patent_app_number] => 10373812 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/373812
Electromagnetically driven valve control apparatus and method Feb 26, 2003 Issued
Array ( [id] => 7217005 [patent_doc_number] => 20050076869 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-04-14 [patent_title] => 'Engine valve moving device' [patent_app_type] => utility [patent_app_number] => 10/502898 [patent_app_country] => US [patent_app_date] => 2003-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 12993 [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] => publications/A1/0076/20050076869.pdf [firstpage_image] =>[orig_patent_app_number] => 10502898 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/502898
Engine valve train device Feb 13, 2003 Issued
Array ( [id] => 6826931 [patent_doc_number] => 20030177989 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-09-25 [patent_title] => 'Electromagnetic valve actuator for an internal combustion engine \n' [patent_app_type] => new [patent_app_number] => 10/366252 [patent_app_country] => US [patent_app_date] => 2003-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4476 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0177/20030177989.pdf [firstpage_image] =>[orig_patent_app_number] => 10366252 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/366252
Electromagnetic valve actuator for an internal combustion engine n Feb 12, 2003 Abandoned
Array ( [id] => 1261641 [patent_doc_number] => 06655331 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-12-02 [patent_title] => 'Piston-type internal-combustion engine having activatable, mechanically actuated cylinder valves' [patent_app_type] => B2 [patent_app_number] => 10/361012 [patent_app_country] => US [patent_app_date] => 2003-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 3464 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/655/06655331.pdf [firstpage_image] =>[orig_patent_app_number] => 10361012 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/361012
Piston-type internal-combustion engine having activatable, mechanically actuated cylinder valves Feb 9, 2003 Issued
Array ( [id] => 358478 [patent_doc_number] => 07484486 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-02-03 [patent_title] => 'Drive for valve operating control systems in motor vehicles, preferably camshaft adjusters' [patent_app_type] => utility [patent_app_number] => 10/494416 [patent_app_country] => US [patent_app_date] => 2003-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 12 [patent_no_of_words] => 2796 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/484/07484486.pdf [firstpage_image] =>[orig_patent_app_number] => 10494416 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/494416
Drive for valve operating control systems in motor vehicles, preferably camshaft adjusters Feb 7, 2003 Issued
Array ( [id] => 7345821 [patent_doc_number] => 20040011314 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-01-22 [patent_title] => 'Camshaft lubrication system' [patent_app_type] => new [patent_app_number] => 10/343562 [patent_app_country] => US [patent_app_date] => 2003-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 6439 [patent_no_of_claims] => 148 [patent_no_of_ind_claims] => 17 [patent_words_short_claim] => 30 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0011/20040011314.pdf [firstpage_image] =>[orig_patent_app_number] => 10343562 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/343562
Camshaft lubrication system Jan 30, 2003 Abandoned
Array ( [id] => 6819553 [patent_doc_number] => 20030217713 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-11-27 [patent_title] => 'Variable valve opening for an internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/354912 [patent_app_country] => US [patent_app_date] => 2003-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6991 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 40 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0217/20030217713.pdf [firstpage_image] =>[orig_patent_app_number] => 10354912 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/354912
Variable valve opening for an internal combustion engine Jan 29, 2003 Abandoned
Array ( [id] => 6848674 [patent_doc_number] => 20030140876 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-07-31 [patent_title] => 'Engine valve actuation system and method using reduced pressure common rail and dedicated engine valve' [patent_app_type] => new [patent_app_number] => 10/353717 [patent_app_country] => US [patent_app_date] => 2003-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4227 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0140/20030140876.pdf [firstpage_image] =>[orig_patent_app_number] => 10353717 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/353717
Engine valve actuation system and method using reduced pressure common rail and dedicated engine valve Jan 29, 2003 Abandoned
Array ( [id] => 1291585 [patent_doc_number] => 06622677 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-09-23 [patent_title] => 'Worm gear driven variable cam phaser' [patent_app_type] => B2 [patent_app_number] => 10/352689 [patent_app_country] => US [patent_app_date] => 2003-01-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 2631 [patent_no_of_claims] => 8 [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] => patents/06/622/06622677.pdf [firstpage_image] =>[orig_patent_app_number] => 10352689 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/352689
Worm gear driven variable cam phaser Jan 27, 2003 Issued
Array ( [id] => 6694320 [patent_doc_number] => 20030106514 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-06-12 [patent_title] => 'Sheet metal rocker arm, manufacturing method thereof, cam follower with said rocker arm, and assembling method thereof' [patent_app_type] => new [patent_app_number] => 10/342235 [patent_app_country] => US [patent_app_date] => 2003-01-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 21 [patent_no_of_words] => 16419 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0106/20030106514.pdf [firstpage_image] =>[orig_patent_app_number] => 10342235 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/342235
Sheet metal rocker arm, manufacturing method thereof, cam follower with said rocker arm, and assembling method thereof Jan 14, 2003 Issued
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