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] => 502256 [patent_doc_number] => 07194992 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-03-27 [patent_title] => 'Hydraulic cushioning of a variable valve timing mechanism' [patent_app_type] => utility [patent_app_number] => 11/017449 [patent_app_country] => US [patent_app_date] => 2004-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 7047 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 319 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/194/07194992.pdf [firstpage_image] =>[orig_patent_app_number] => 11017449 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/017449
Hydraulic cushioning of a variable valve timing mechanism Dec 19, 2004 Issued
Array ( [id] => 670002 [patent_doc_number] => 07089897 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-08-15 [patent_title] => 'Electrically driven camshaft adjuster' [patent_app_type] => utility [patent_app_number] => 11/018449 [patent_app_country] => US [patent_app_date] => 2004-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 4326 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/089/07089897.pdf [firstpage_image] =>[orig_patent_app_number] => 11018449 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/018449
Electrically driven camshaft adjuster Dec 19, 2004 Issued
Array ( [id] => 7230932 [patent_doc_number] => 20050139180 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-06-30 [patent_title] => 'Electromagnetic spool valve' [patent_app_type] => utility [patent_app_number] => 11/013796 [patent_app_country] => US [patent_app_date] => 2004-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 6354 [patent_no_of_claims] => 9 [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/A1/0139/20050139180.pdf [firstpage_image] =>[orig_patent_app_number] => 11013796 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/013796
Electromagnetic spool valve Dec 16, 2004 Issued
Array ( [id] => 6993218 [patent_doc_number] => 20050132993 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-06-23 [patent_title] => 'Coupling mechanism' [patent_app_type] => utility [patent_app_number] => 11/014468 [patent_app_country] => US [patent_app_date] => 2004-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1606 [patent_no_of_claims] => 19 [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/A1/0132/20050132993.pdf [firstpage_image] =>[orig_patent_app_number] => 11014468 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/014468
Coupling mechanism Dec 15, 2004 Issued
Array ( [id] => 325382 [patent_doc_number] => 07513231 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-04-07 [patent_title] => 'Valve gear of internal combustion engine' [patent_app_type] => utility [patent_app_number] => 10/582120 [patent_app_country] => US [patent_app_date] => 2004-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 5396 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/513/07513231.pdf [firstpage_image] =>[orig_patent_app_number] => 10582120 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/582120
Valve gear of internal combustion engine Dec 14, 2004 Issued
Array ( [id] => 491225 [patent_doc_number] => 07207300 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-04-24 [patent_title] => 'Variable valve mechanism' [patent_app_type] => utility [patent_app_number] => 10/548199 [patent_app_country] => US [patent_app_date] => 2004-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 15 [patent_no_of_words] => 11068 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 220 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/207/07207300.pdf [firstpage_image] =>[orig_patent_app_number] => 10548199 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/548199
Variable valve mechanism Dec 13, 2004 Issued
Array ( [id] => 202316 [patent_doc_number] => 07628129 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-12-08 [patent_title] => 'Camshaft, method of manufacturing cam for camshaft, and method of manufacturing shaft for camshaft' [patent_app_type] => utility [patent_app_number] => 10/582708 [patent_app_country] => US [patent_app_date] => 2004-12-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 25 [patent_figures_cnt] => 39 [patent_no_of_words] => 8601 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 276 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/628/07628129.pdf [firstpage_image] =>[orig_patent_app_number] => 10582708 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/582708
Camshaft, method of manufacturing cam for camshaft, and method of manufacturing shaft for camshaft Dec 9, 2004 Issued
Array ( [id] => 5750047 [patent_doc_number] => 20060219196 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2006-10-05 [patent_title] => 'Variable valve mechanism' [patent_app_type] => utility [patent_app_number] => 10/553279 [patent_app_country] => US [patent_app_date] => 2004-12-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 17489 [patent_no_of_claims] => 21 [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] => publications/A1/0219/20060219196.pdf [firstpage_image] =>[orig_patent_app_number] => 10553279 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/553279
Variable valve mechanism Dec 7, 2004 Issued
Array ( [id] => 611561 [patent_doc_number] => 07146953 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-12-12 [patent_title] => 'Mechanical valve play compensation element for a valve drive on a piston combustion engine' [patent_app_type] => utility [patent_app_number] => 11/002310 [patent_app_country] => US [patent_app_date] => 2004-12-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 4142 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/146/07146953.pdf [firstpage_image] =>[orig_patent_app_number] => 11002310 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/002310
Mechanical valve play compensation element for a valve drive on a piston combustion engine Dec 2, 2004 Issued
Array ( [id] => 942700 [patent_doc_number] => 06966287 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2005-11-22 [patent_title] => 'CAM phaser and DOD coordination for engine torque control' [patent_app_type] => utility [patent_app_number] => 11/001709 [patent_app_country] => US [patent_app_date] => 2004-12-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3530 [patent_no_of_claims] => 31 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/966/06966287.pdf [firstpage_image] =>[orig_patent_app_number] => 11001709 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/001709
CAM phaser and DOD coordination for engine torque control Nov 30, 2004 Issued
Array ( [id] => 471819 [patent_doc_number] => 07225770 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-06-05 [patent_title] => 'Electromagnetic actuator having inherently decelerating actuation between limits' [patent_app_type] => utility [patent_app_number] => 10/997319 [patent_app_country] => US [patent_app_date] => 2004-11-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 13 [patent_no_of_words] => 2615 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 309 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/225/07225770.pdf [firstpage_image] =>[orig_patent_app_number] => 10997319 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/997319
Electromagnetic actuator having inherently decelerating actuation between limits Nov 23, 2004 Issued
Array ( [id] => 456261 [patent_doc_number] => 07240650 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-07-10 [patent_title] => 'Valve timing adjusting apparatus' [patent_app_type] => utility [patent_app_number] => 10/992096 [patent_app_country] => US [patent_app_date] => 2004-11-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 6173 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 346 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/240/07240650.pdf [firstpage_image] =>[orig_patent_app_number] => 10992096 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/992096
Valve timing adjusting apparatus Nov 18, 2004 Issued
Array ( [id] => 6935740 [patent_doc_number] => 20050109301 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-05-26 [patent_title] => 'Leakdown plunger' [patent_app_type] => utility [patent_app_number] => 10/992531 [patent_app_country] => US [patent_app_date] => 2004-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 53 [patent_figures_cnt] => 53 [patent_no_of_words] => 12710 [patent_no_of_claims] => 16 [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] => publications/A1/0109/20050109301.pdf [firstpage_image] =>[orig_patent_app_number] => 10992531 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/992531
Leakdown plunger Nov 17, 2004 Issued
Array ( [id] => 692037 [patent_doc_number] => 07069890 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-07-04 [patent_title] => 'Valve train device for an engine' [patent_app_type] => utility [patent_app_number] => 10/990619 [patent_app_country] => US [patent_app_date] => 2004-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 6633 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/069/07069890.pdf [firstpage_image] =>[orig_patent_app_number] => 10990619 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/990619
Valve train device for an engine Nov 16, 2004 Issued
Array ( [id] => 471830 [patent_doc_number] => 07225776 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-06-05 [patent_title] => 'Valvetrain with two-step switchable rocker and deactivating stationary lash adjuster' [patent_app_type] => utility [patent_app_number] => 10/990936 [patent_app_country] => US [patent_app_date] => 2004-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 4284 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/225/07225776.pdf [firstpage_image] =>[orig_patent_app_number] => 10990936 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/990936
Valvetrain with two-step switchable rocker and deactivating stationary lash adjuster Nov 16, 2004 Issued
Array ( [id] => 7138688 [patent_doc_number] => 20050115530 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-06-02 [patent_title] => 'Air-cooled internal combustion engine' [patent_app_type] => utility [patent_app_number] => 10/989537 [patent_app_country] => US [patent_app_date] => 2004-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 9375 [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] => publications/A1/0115/20050115530.pdf [firstpage_image] =>[orig_patent_app_number] => 10989537 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/989537
Air-cooled internal combustion engine Nov 15, 2004 Issued
Array ( [id] => 828872 [patent_doc_number] => 07398749 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-07-15 [patent_title] => 'Method and device for controlling an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 10/549019 [patent_app_country] => US [patent_app_date] => 2004-11-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 4611 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/398/07398749.pdf [firstpage_image] =>[orig_patent_app_number] => 10549019 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/549019
Method and device for controlling an internal combustion engine Nov 9, 2004 Issued
Array ( [id] => 835391 [patent_doc_number] => 07392776 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2008-07-01 [patent_title] => 'Rocker arm construction' [patent_app_type] => utility [patent_app_number] => 10/983938 [patent_app_country] => US [patent_app_date] => 2004-11-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 17 [patent_no_of_words] => 2618 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 199 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/392/07392776.pdf [firstpage_image] =>[orig_patent_app_number] => 10983938 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/983938
Rocker arm construction Nov 7, 2004 Issued
Array ( [id] => 848015 [patent_doc_number] => 07380529 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-06-03 [patent_title] => 'Method for adjusting an angle of rotation, and phase displacement device for carrying out said method' [patent_app_type] => utility [patent_app_number] => 10/578738 [patent_app_country] => US [patent_app_date] => 2004-11-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3159 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/380/07380529.pdf [firstpage_image] =>[orig_patent_app_number] => 10578738 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/578738
Method for adjusting an angle of rotation, and phase displacement device for carrying out said method Nov 4, 2004 Issued
Array ( [id] => 7007562 [patent_doc_number] => 20050061278 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-03-24 [patent_title] => 'Camshaft adjuster with an electrical drive' [patent_app_type] => utility [patent_app_number] => 10/979487 [patent_app_country] => US [patent_app_date] => 2004-11-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2501 [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] => publications/A1/0061/20050061278.pdf [firstpage_image] =>[orig_patent_app_number] => 10979487 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/979487
Camshaft adjuster with an electrical drive Nov 1, 2004 Issued
Menu