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] => 805001 [patent_doc_number] => 07418935 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-09-02 [patent_title] => 'Stroke adjusting device for valves of a combustion engine' [patent_app_type] => utility [patent_app_number] => 10/518739 [patent_app_country] => US [patent_app_date] => 2003-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 4384 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/418/07418935.pdf [firstpage_image] =>[orig_patent_app_number] => 10518739 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/518739
Stroke adjusting device for valves of a combustion engine Jun 19, 2003 Issued
Array ( [id] => 361866 [patent_doc_number] => 07481192 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-01-27 [patent_title] => 'Valve gear and method for opening and closing a passage' [patent_app_type] => utility [patent_app_number] => 10/553247 [patent_app_country] => US [patent_app_date] => 2003-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3269 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/481/07481192.pdf [firstpage_image] =>[orig_patent_app_number] => 10553247 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/553247
Valve gear and method for opening and closing a passage Jun 19, 2003 Issued
Array ( [id] => 695886 [patent_doc_number] => 07066124 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-06-27 [patent_title] => 'Engine for scooter' [patent_app_type] => utility [patent_app_number] => 10/510318 [patent_app_country] => US [patent_app_date] => 2003-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3049 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/066/07066124.pdf [firstpage_image] =>[orig_patent_app_number] => 10510318 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/510318
Engine for scooter Jun 15, 2003 Issued
Array ( [id] => 1132543 [patent_doc_number] => 06779501 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-08-24 [patent_title] => 'Method to reduce rotational oscillation of a vane style phaser with a center mounted spool valve' [patent_app_type] => B2 [patent_app_number] => 10/461539 [patent_app_country] => US [patent_app_date] => 2003-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3012 [patent_no_of_claims] => 31 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/779/06779501.pdf [firstpage_image] =>[orig_patent_app_number] => 10461539 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/461539
Method to reduce rotational oscillation of a vane style phaser with a center mounted spool valve Jun 11, 2003 Issued
Array ( [id] => 7381988 [patent_doc_number] => 20040020453 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-02-05 [patent_title] => 'Damped valve controller' [patent_app_type] => new [patent_app_number] => 10/452752 [patent_app_country] => US [patent_app_date] => 2003-06-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 5463 [patent_no_of_claims] => 70 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0020/20040020453.pdf [firstpage_image] =>[orig_patent_app_number] => 10452752 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/452752
Damped valve controller Jun 1, 2003 Abandoned
Array ( [id] => 1146600 [patent_doc_number] => 06763793 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-07-20 [patent_title] => 'Valve system for internal combustion engine' [patent_app_type] => B2 [patent_app_number] => 10/443988 [patent_app_country] => US [patent_app_date] => 2003-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 17 [patent_no_of_words] => 7511 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 227 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/763/06763793.pdf [firstpage_image] =>[orig_patent_app_number] => 10443988 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/443988
Valve system for internal combustion engine May 22, 2003 Issued
Array ( [id] => 7272172 [patent_doc_number] => 20040231623 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-11-25 [patent_title] => 'DIESEL ENGINE WITH INTAKE CAM PHASER FOR COMPRESSION RATIO CONTROL' [patent_app_type] => new [patent_app_number] => 10/444929 [patent_app_country] => US [patent_app_date] => 2003-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1767 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0231/20040231623.pdf [firstpage_image] =>[orig_patent_app_number] => 10444929 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/444929
Diesel engine with intake cam phaser for compression ratio control May 22, 2003 Issued
Array ( [id] => 7071783 [patent_doc_number] => 20050145049 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-07-07 [patent_title] => 'Gearbox comprising two rotatable disks which are arranged inside each other and are connected by means of a swash plate' [patent_app_type] => utility [patent_app_number] => 10/509438 [patent_app_country] => US [patent_app_date] => 2003-05-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1774 [patent_no_of_claims] => 11 [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/A1/0145/20050145049.pdf [firstpage_image] =>[orig_patent_app_number] => 10509438 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/509438
Gearbox comprising two rotatable disks which are arranged inside each other and are connected by means of a swash plate May 19, 2003 Issued
Array ( [id] => 7364266 [patent_doc_number] => 20040025822 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-02-12 [patent_title] => 'Method to ensure robust operation of a pin lock in a vane style cam phaser' [patent_app_type] => new [patent_app_number] => 10/440732 [patent_app_country] => US [patent_app_date] => 2003-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3151 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 221 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0025/20040025822.pdf [firstpage_image] =>[orig_patent_app_number] => 10440732 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/440732
Method to ensure robust operation of a pin lock in a vane style cam phaser May 18, 2003 Issued
Array ( [id] => 7402884 [patent_doc_number] => 20040226526 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-11-18 [patent_title] => 'Camshaft adjuster for internal combustion engines of motor vehicles' [patent_app_type] => new [patent_app_number] => 10/436122 [patent_app_country] => US [patent_app_date] => 2003-05-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3368 [patent_no_of_claims] => 34 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 4 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0226/20040226526.pdf [firstpage_image] =>[orig_patent_app_number] => 10436122 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/436122
Camshaft adjuster for internal combustion engines of motor vehicles May 11, 2003 Issued
Array ( [id] => 449980 [patent_doc_number] => 07246588 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-07-24 [patent_title] => 'Assembled camshaft for engine and production method thereof' [patent_app_type] => utility [patent_app_number] => 10/434338 [patent_app_country] => US [patent_app_date] => 2003-05-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 18 [patent_no_of_words] => 4497 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/246/07246588.pdf [firstpage_image] =>[orig_patent_app_number] => 10434338 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/434338
Assembled camshaft for engine and production method thereof May 8, 2003 Issued
Array ( [id] => 1148183 [patent_doc_number] => 06761139 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-07-13 [patent_title] => 'Valve timing control apparatus for an internal combustion engine' [patent_app_type] => B2 [patent_app_number] => 10/425937 [patent_app_country] => US [patent_app_date] => 2003-04-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5186 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/761/06761139.pdf [firstpage_image] =>[orig_patent_app_number] => 10425937 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/425937
Valve timing control apparatus for an internal combustion engine Apr 29, 2003 Issued
Array ( [id] => 7290451 [patent_doc_number] => 20040211375 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-10-28 [patent_title] => 'Anti-rotation guide for a deactivation hydraulic valve lifter' [patent_app_type] => new [patent_app_number] => 10/422308 [patent_app_country] => US [patent_app_date] => 2003-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 5353 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 16 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0211/20040211375.pdf [firstpage_image] =>[orig_patent_app_number] => 10422308 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/422308
Anti-rotation guide for a deactivation hydraulic valve lifter Apr 23, 2003 Issued
Array ( [id] => 6819559 [patent_doc_number] => 20030217719 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-11-27 [patent_title] => 'Retention bolt for a cam phaser' [patent_app_type] => new [patent_app_number] => 10/421399 [patent_app_country] => US [patent_app_date] => 2003-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 2816 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0217/20030217719.pdf [firstpage_image] =>[orig_patent_app_number] => 10421399 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/421399
Retention bolt for a cam phaser Apr 22, 2003 Issued
Array ( [id] => 276935 [patent_doc_number] => 07556000 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-07-07 [patent_title] => 'Camshaft phaser having designated contact vane' [patent_app_type] => utility [patent_app_number] => 10/421424 [patent_app_country] => US [patent_app_date] => 2003-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 12 [patent_no_of_words] => 3055 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/556/07556000.pdf [firstpage_image] =>[orig_patent_app_number] => 10421424 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/421424
Camshaft phaser having designated contact vane Apr 22, 2003 Issued
Array ( [id] => 6819558 [patent_doc_number] => 20030217718 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-11-27 [patent_title] => 'Camshaft phaser having an external bias spring' [patent_app_type] => new [patent_app_number] => 10/421397 [patent_app_country] => US [patent_app_date] => 2003-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 3700 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0217/20030217718.pdf [firstpage_image] =>[orig_patent_app_number] => 10421397 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/421397
Camshaft phaser having an external bias spring Apr 22, 2003 Issued
Array ( [id] => 6676392 [patent_doc_number] => 20030226532 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-12-11 [patent_title] => 'Valve timing adjusting device' [patent_app_type] => new [patent_app_number] => 10/419272 [patent_app_country] => US [patent_app_date] => 2003-04-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 21 [patent_no_of_words] => 15651 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 238 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0226/20030226532.pdf [firstpage_image] =>[orig_patent_app_number] => 10419272 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/419272
Valve timing adjusting device Apr 20, 2003 Issued
Array ( [id] => 1190030 [patent_doc_number] => 06729285 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-05-04 [patent_title] => 'Lever-type cam follower made of sheet metal' [patent_app_type] => B2 [patent_app_number] => 10/419668 [patent_app_country] => US [patent_app_date] => 2003-04-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 6 [patent_no_of_words] => 1819 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/729/06729285.pdf [firstpage_image] =>[orig_patent_app_number] => 10419668 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/419668
Lever-type cam follower made of sheet metal Apr 20, 2003 Issued
Array ( [id] => 6806676 [patent_doc_number] => 20030196615 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-10-23 [patent_title] => 'Electromagnetic valve control apparatus and control method thereof' [patent_app_type] => new [patent_app_number] => 10/412208 [patent_app_country] => US [patent_app_date] => 2003-04-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 9998 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0196/20030196615.pdf [firstpage_image] =>[orig_patent_app_number] => 10412208 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/412208
Electromagnetic valve control apparatus and control method thereof Apr 13, 2003 Abandoned
Array ( [id] => 7266910 [patent_doc_number] => 20040055549 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-03-25 [patent_title] => 'Variable valve timing system for an internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/409997 [patent_app_country] => US [patent_app_date] => 2003-04-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2698 [patent_no_of_claims] => 17 [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/A1/0055/20040055549.pdf [firstpage_image] =>[orig_patent_app_number] => 10409997 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/409997
Variable valve timing system for an internal combustion engine Apr 8, 2003 Abandoned
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