Search

Ching Chang

Examiner (ID: 5925, Phone: (571)272-4857 , Office: P/3748 )

Most Active Art Unit
3748
Art Unit(s)
3746, 3748
Total Applications
1871
Issued Applications
1700
Pending Applications
11
Abandoned Applications
170

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 5025522 [patent_doc_number] => 20070266968 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-11-22 [patent_title] => 'Twin cylinder motorcycle engine' [patent_app_type] => utility [patent_app_number] => 11/882380 [patent_app_country] => US [patent_app_date] => 2007-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 3186 [patent_no_of_claims] => 10 [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/A1/0266/20070266968.pdf [firstpage_image] =>[orig_patent_app_number] => 11882380 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/882380
Collapsible pushrod assembly and method of installing a collapsible pushrod assembly Jul 31, 2007 Issued
Array ( [id] => 5357176 [patent_doc_number] => 20090031970 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-02-05 [patent_title] => 'SWITCHABLE VALVETRAIN SYSTEM AND METHOD OF OPERATION' [patent_app_type] => utility [patent_app_number] => 11/832327 [patent_app_country] => US [patent_app_date] => 2007-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2230 [patent_no_of_claims] => 12 [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/A1/0031/20090031970.pdf [firstpage_image] =>[orig_patent_app_number] => 11832327 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/832327
Switchable valvetrain system and method of operation Jul 31, 2007 Issued
Array ( [id] => 4767732 [patent_doc_number] => 20080053386 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-03-06 [patent_title] => 'Valve timing control apparatus' [patent_app_type] => utility [patent_app_number] => 11/882106 [patent_app_country] => US [patent_app_date] => 2007-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 10026 [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/A1/0053/20080053386.pdf [firstpage_image] =>[orig_patent_app_number] => 11882106 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/882106
Valve timing control apparatus Jul 29, 2007 Issued
Array ( [id] => 4654094 [patent_doc_number] => 20080022954 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-01-31 [patent_title] => 'Cam follower for a valve drive of an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/881368 [patent_app_country] => US [patent_app_date] => 2007-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1180 [patent_no_of_claims] => 7 [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/A1/0022/20080022954.pdf [firstpage_image] =>[orig_patent_app_number] => 11881368 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/881368
Cam follower for a valve drive of an internal combustion engine Jul 25, 2007 Issued
Array ( [id] => 4906387 [patent_doc_number] => 20080017153 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-01-24 [patent_title] => 'VALVETRAIN SWITCHABLE LEVER ARM FOR INTERNAL COMBUSTION ENGINE USING COLLAPSING PIVOT ELEMENT AT CENTER PIVOT' [patent_app_type] => utility [patent_app_number] => 11/780670 [patent_app_country] => US [patent_app_date] => 2007-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2156 [patent_no_of_claims] => 12 [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/A1/0017/20080017153.pdf [firstpage_image] =>[orig_patent_app_number] => 11780670 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/780670
Valvetrain switchable lever arm for internal combustion engine using collapsing pivot element at center pivot Jul 19, 2007 Issued
Array ( [id] => 11343 [patent_doc_number] => 07802545 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-09-28 [patent_title] => 'Valve timing controller' [patent_app_type] => utility [patent_app_number] => 11/826892 [patent_app_country] => US [patent_app_date] => 2007-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 15 [patent_no_of_words] => 5304 [patent_no_of_claims] => 9 [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/07/802/07802545.pdf [firstpage_image] =>[orig_patent_app_number] => 11826892 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/826892
Valve timing controller Jul 18, 2007 Issued
Array ( [id] => 4906382 [patent_doc_number] => 20080017148 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-01-24 [patent_title] => 'Fully Variable Mechanical Valve Train In An Internal Combustion Engine' [patent_app_type] => utility [patent_app_number] => 11/780168 [patent_app_country] => US [patent_app_date] => 2007-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2076 [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/A1/0017/20080017148.pdf [firstpage_image] =>[orig_patent_app_number] => 11780168 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/780168
Fully variable mechanical valve train in an internal combustion engine Jul 18, 2007 Issued
Array ( [id] => 5042979 [patent_doc_number] => 20070261650 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-11-15 [patent_title] => 'Lift-variable valve-operating systems for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/822917 [patent_app_country] => US [patent_app_date] => 2007-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 4233 [patent_no_of_claims] => 7 [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/A1/0261/20070261650.pdf [firstpage_image] =>[orig_patent_app_number] => 11822917 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/822917
Lift-variable valve-operating systems for internal combustion engine Jul 10, 2007 Issued
Array ( [id] => 325384 [patent_doc_number] => 07513233 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-04-07 [patent_title] => 'Variable valve timing controller for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/822927 [patent_app_country] => US [patent_app_date] => 2007-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 6396 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/513/07513233.pdf [firstpage_image] =>[orig_patent_app_number] => 11822927 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/822927
Variable valve timing controller for internal combustion engine Jul 10, 2007 Issued
Array ( [id] => 361864 [patent_doc_number] => 07481191 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-01-27 [patent_title] => 'Variable valve timing control apparatus of internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/776287 [patent_app_country] => US [patent_app_date] => 2007-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 13 [patent_no_of_words] => 9542 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/481/07481191.pdf [firstpage_image] =>[orig_patent_app_number] => 11776287 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/776287
Variable valve timing control apparatus of internal combustion engine Jul 10, 2007 Issued
Array ( [id] => 4799666 [patent_doc_number] => 20080011253 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-01-17 [patent_title] => 'VARIABLE VALVE ACTUATING APPARATUS FOR INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 11/774862 [patent_app_country] => US [patent_app_date] => 2007-07-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 9960 [patent_no_of_claims] => 10 [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/A1/0011/20080011253.pdf [firstpage_image] =>[orig_patent_app_number] => 11774862 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/774862
Variable valve actuating apparatus for internal combustion engine Jul 8, 2007 Issued
Array ( [id] => 5306686 [patent_doc_number] => 20090013967 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-01-15 [patent_title] => 'SPRING-LESS VALVE TRAIN FOR INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 11/774907 [patent_app_country] => US [patent_app_date] => 2007-07-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2482 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0013/20090013967.pdf [firstpage_image] =>[orig_patent_app_number] => 11774907 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/774907
SPRING-LESS VALVE TRAIN FOR INTERNAL COMBUSTION ENGINE Jul 8, 2007 Abandoned
Array ( [id] => 266368 [patent_doc_number] => 07565890 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-07-28 [patent_title] => 'Rail used as a torsional stop for the valve train of an internal combustion engine, and roller tappet arrangement' [patent_app_type] => utility [patent_app_number] => 11/772408 [patent_app_country] => US [patent_app_date] => 2007-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 17 [patent_no_of_words] => 3191 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 185 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/565/07565890.pdf [firstpage_image] =>[orig_patent_app_number] => 11772408 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/772408
Rail used as a torsional stop for the valve train of an internal combustion engine, and roller tappet arrangement Jul 1, 2007 Issued
Array ( [id] => 5222210 [patent_doc_number] => 20070251476 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-11-01 [patent_title] => 'Phaser for Controlling the Timing Between A Camshaft and A Timing Gear' [patent_app_type] => utility [patent_app_number] => 11/770777 [patent_app_country] => US [patent_app_date] => 2007-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2734 [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/A1/0251/20070251476.pdf [firstpage_image] =>[orig_patent_app_number] => 11770777 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/770777
Phaser for controlling the timing between a camshaft and a timing gear Jun 28, 2007 Issued
Array ( [id] => 5162334 [patent_doc_number] => 20070283914 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-12-13 [patent_title] => 'Dual Lift Rocker Arm Latch Mechanism And Actuation Arrangement Therefor' [patent_app_type] => utility [patent_app_number] => 11/771088 [patent_app_country] => US [patent_app_date] => 2007-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3926 [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/A1/0283/20070283914.pdf [firstpage_image] =>[orig_patent_app_number] => 11771088 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/771088
Dual lift rocker arm latch mechanism and actuation arrangement therefor Jun 28, 2007 Issued
Array ( [id] => 4565197 [patent_doc_number] => 07854215 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-12-21 [patent_title] => 'Valve train with overload features' [patent_app_type] => utility [patent_app_number] => 11/769858 [patent_app_country] => US [patent_app_date] => 2007-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 3653 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/854/07854215.pdf [firstpage_image] =>[orig_patent_app_number] => 11769858 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/769858
Valve train with overload features Jun 27, 2007 Issued
Array ( [id] => 4684870 [patent_doc_number] => 20080029051 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-02-07 [patent_title] => 'Method and device for controlling an electrodynamic brake of an electric camshaft adjuster for an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/821549 [patent_app_country] => US [patent_app_date] => 2007-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3469 [patent_no_of_claims] => 10 [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/A1/0029/20080029051.pdf [firstpage_image] =>[orig_patent_app_number] => 11821549 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/821549
Method and device for controlling an electrodynamic brake of an electric camshaft adjuster for an internal combustion engine Jun 21, 2007 Issued
Array ( [id] => 4853887 [patent_doc_number] => 20080319630 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-12-25 [patent_title] => 'Adaptive air intake manifold valve actuator (IMVA)' [patent_app_type] => utility [patent_app_number] => 11/821247 [patent_app_country] => US [patent_app_date] => 2007-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1365 [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/A1/0319/20080319630.pdf [firstpage_image] =>[orig_patent_app_number] => 11821247 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/821247
Adaptive air intake manifold valve actuator (IMVA) Jun 21, 2007 Abandoned
Array ( [id] => 4848599 [patent_doc_number] => 20080314340 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-12-25 [patent_title] => 'Two-step roller finger cam follower assembly having a follower travel limiter' [patent_app_type] => utility [patent_app_number] => 11/820789 [patent_app_country] => US [patent_app_date] => 2007-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 1944 [patent_no_of_claims] => 7 [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/A1/0314/20080314340.pdf [firstpage_image] =>[orig_patent_app_number] => 11820789 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/820789
Two-step roller finger cam follower assembly having a follower travel limiter Jun 19, 2007 Issued
Array ( [id] => 215982 [patent_doc_number] => 07610887 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-11-03 [patent_title] => 'Valve-deactivating hydraulic lifter having a contoured pin housing bottom surface' [patent_app_type] => utility [patent_app_number] => 11/820756 [patent_app_country] => US [patent_app_date] => 2007-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 9 [patent_no_of_words] => 2346 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 188 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/610/07610887.pdf [firstpage_image] =>[orig_patent_app_number] => 11820756 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/820756
Valve-deactivating hydraulic lifter having a contoured pin housing bottom surface Jun 19, 2007 Issued
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