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] => 8402215 [patent_doc_number] => 20120234277 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-09-20 [patent_title] => 'ROLLER TAPPET' [patent_app_type] => utility [patent_app_number] => 13/512413 [patent_app_country] => US [patent_app_date] => 2010-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2012 [patent_no_of_claims] => 21 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13512413 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/512413
Roller tappet Oct 13, 2010 Issued
Array ( [id] => 8343906 [patent_doc_number] => 20120204824 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-08-16 [patent_title] => 'VALVE GEAR OF ENGINE' [patent_app_type] => utility [patent_app_number] => 13/500451 [patent_app_country] => US [patent_app_date] => 2010-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 19 [patent_no_of_words] => 15677 [patent_no_of_claims] => 15 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13500451 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/500451
Valve gear of engine Oct 3, 2010 Issued
Array ( [id] => 8320410 [patent_doc_number] => 20120192820 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-08-02 [patent_title] => 'CAMSHAFT ARRANGEMENT' [patent_app_type] => utility [patent_app_number] => 13/500335 [patent_app_country] => US [patent_app_date] => 2010-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2998 [patent_no_of_claims] => 15 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13500335 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/500335
Camshaft arrangement Oct 3, 2010 Issued
Array ( [id] => 8292650 [patent_doc_number] => 08220427 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-07-17 [patent_title] => 'VCT active lock pin control' [patent_app_type] => utility [patent_app_number] => 12/891033 [patent_app_country] => US [patent_app_date] => 2010-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2670 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12891033 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/891033
VCT active lock pin control Sep 26, 2010 Issued
Array ( [id] => 6111940 [patent_doc_number] => 20110072808 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-03-31 [patent_title] => 'EXHAUST GAS RECIRCULATION SYSTEM' [patent_app_type] => utility [patent_app_number] => 12/891396 [patent_app_country] => US [patent_app_date] => 2010-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3170 [patent_no_of_claims] => 15 [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/A1/0072/20110072808.pdf [firstpage_image] =>[orig_patent_app_number] => 12891396 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/891396
Exhaust gas recirculation system Sep 26, 2010 Issued
Array ( [id] => 6198834 [patent_doc_number] => 20110061620 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-03-17 [patent_title] => 'VALVE TIMING CONTROL APPARATUS' [patent_app_type] => utility [patent_app_number] => 12/881680 [patent_app_country] => US [patent_app_date] => 2010-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3875 [patent_no_of_claims] => 15 [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/A1/0061/20110061620.pdf [firstpage_image] =>[orig_patent_app_number] => 12881680 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/881680
Valve timing control apparatus Sep 13, 2010 Issued
Array ( [id] => 9298212 [patent_doc_number] => 08646426 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-02-11 [patent_title] => 'Valve lash setting process' [patent_app_type] => utility [patent_app_number] => 12/880503 [patent_app_country] => US [patent_app_date] => 2010-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 12 [patent_no_of_words] => 5735 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 159 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12880503 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/880503
Valve lash setting process Sep 12, 2010 Issued
Array ( [id] => 9689696 [patent_doc_number] => 08820278 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2014-09-02 [patent_title] => 'Valve timing control apparatus' [patent_app_type] => utility [patent_app_number] => 13/392563 [patent_app_country] => US [patent_app_date] => 2010-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 11180 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 257 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13392563 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/392563
Valve timing control apparatus Sep 8, 2010 Issued
Array ( [id] => 9237028 [patent_doc_number] => 08601811 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-12-10 [patent_title] => 'Method and system adjusting an exhaust heat recovery valve' [patent_app_type] => utility [patent_app_number] => 12/878846 [patent_app_country] => US [patent_app_date] => 2010-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 8332 [patent_no_of_claims] => 15 [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] =>[firstpage_image] =>[orig_patent_app_number] => 12878846 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/878846
Method and system adjusting an exhaust heat recovery valve Sep 8, 2010 Issued
Array ( [id] => 6002381 [patent_doc_number] => 20110056203 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-03-10 [patent_title] => 'Method for recuperating energy from an exhaust gas flow and motor vehicle' [patent_app_type] => utility [patent_app_number] => 12/807454 [patent_app_country] => US [patent_app_date] => 2010-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2090 [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/A1/0056/20110056203.pdf [firstpage_image] =>[orig_patent_app_number] => 12807454 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/807454
Method for recuperating energy from an exhaust gas flow and motor vehicle Sep 2, 2010 Issued
Array ( [id] => 8281180 [patent_doc_number] => 08215275 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-07-10 [patent_title] => 'Single lobe deactivating rocker arm' [patent_app_type] => utility [patent_app_number] => 12/856266 [patent_app_country] => US [patent_app_date] => 2010-08-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3992 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12856266 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/856266
Single lobe deactivating rocker arm Aug 12, 2010 Issued
Array ( [id] => 7761316 [patent_doc_number] => 20120031357 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-02-09 [patent_title] => 'Feed Forward Control for Electric Variable Valve Operation' [patent_app_type] => utility [patent_app_number] => 12/851831 [patent_app_country] => US [patent_app_date] => 2010-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 7124 [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/A1/0031/20120031357.pdf [firstpage_image] =>[orig_patent_app_number] => 12851831 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/851831
Feed forward control for electric variable valve operation Aug 5, 2010 Issued
Array ( [id] => 9097715 [patent_doc_number] => 08561585 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-10-22 [patent_title] => 'Rocker arm unit' [patent_app_type] => utility [patent_app_number] => 12/850994 [patent_app_country] => US [patent_app_date] => 2010-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 4450 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 201 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12850994 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/850994
Rocker arm unit Aug 4, 2010 Issued
Array ( [id] => 9230938 [patent_doc_number] => 08596238 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-12-03 [patent_title] => 'Valve train for internal combustion engines for actuating gas exchange valves' [patent_app_type] => utility [patent_app_number] => 13/387752 [patent_app_country] => US [patent_app_date] => 2010-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 2699 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13387752 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/387752
Valve train for internal combustion engines for actuating gas exchange valves Aug 2, 2010 Issued
Array ( [id] => 7748118 [patent_doc_number] => 20120023952 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-02-02 [patent_title] => 'FUEL NOZZLE AND ASSEMBLY AND GAS TURBINE COMPRISING THE SAME' [patent_app_type] => utility [patent_app_number] => 12/847688 [patent_app_country] => US [patent_app_date] => 2010-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 4742 [patent_no_of_claims] => 9 [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/A1/0023/20120023952.pdf [firstpage_image] =>[orig_patent_app_number] => 12847688 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/847688
Fuel nozzle and assembly and gas turbine comprising the same Jul 29, 2010 Issued
Array ( [id] => 6206529 [patent_doc_number] => 20110132297 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-06-09 [patent_title] => 'ELECTRO-HYDRAULIC VARIABLE VALVE LIFT APPARATUS' [patent_app_type] => utility [patent_app_number] => 12/847789 [patent_app_country] => US [patent_app_date] => 2010-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5425 [patent_no_of_claims] => 20 [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/A1/0132/20110132297.pdf [firstpage_image] =>[orig_patent_app_number] => 12847789 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/847789
Electro-hydraulic variable valve lift apparatus Jul 29, 2010 Issued
Array ( [id] => 7748654 [patent_doc_number] => 20120024246 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2012-02-02 [patent_title] => 'MULTI-MODE VALVE CONTROL MECHANISM FOR CAM-DRIVEN POPPET VALVES' [patent_app_type] => utility [patent_app_number] => 12/845214 [patent_app_country] => US [patent_app_date] => 2010-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 4570 [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/A1/0024/20120024246.pdf [firstpage_image] =>[orig_patent_app_number] => 12845214 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/845214
Multi-mode valve control mechanism for cam-driven poppet valves Jul 27, 2010 Issued
Array ( [id] => 9018530 [patent_doc_number] => 08528509 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-09-10 [patent_title] => 'Variable valve lift apparatus' [patent_app_type] => utility [patent_app_number] => 12/844596 [patent_app_country] => US [patent_app_date] => 2010-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 2922 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12844596 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/844596
Variable valve lift apparatus Jul 26, 2010 Issued
Array ( [id] => 6191727 [patent_doc_number] => 20110023481 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-02-03 [patent_title] => 'Method and device for operating a wastegate actuator for a wastegate' [patent_app_type] => utility [patent_app_number] => 12/804672 [patent_app_country] => US [patent_app_date] => 2010-07-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4213 [patent_no_of_claims] => 8 [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/A1/0023/20110023481.pdf [firstpage_image] =>[orig_patent_app_number] => 12804672 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/804672
Method and device for operating a wastegate actuator for a wastegate Jul 25, 2010 Issued
Array ( [id] => 8887243 [patent_doc_number] => 20130160427 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2013-06-27 [patent_title] => 'COOLING DEVICE FOR COOLING COMBUSTION GASES FROM RECOILLESS ANTI-TANK WEAPONS' [patent_app_type] => utility [patent_app_number] => 13/811036 [patent_app_country] => US [patent_app_date] => 2010-07-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2347 [patent_no_of_claims] => 20 [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] =>[firstpage_image] =>[orig_patent_app_number] => 13811036 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/811036
Cooling device for cooling combustion gases from recoilless anti-tank weapons Jul 21, 2010 Issued
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