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] => 5487554 [patent_doc_number] => 20090288625 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-11-26 [patent_title] => 'VALVE TIMING CONTROL DEVICE' [patent_app_type] => utility [patent_app_number] => 12/408207 [patent_app_country] => US [patent_app_date] => 2009-03-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 19 [patent_no_of_words] => 12399 [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/A1/0288/20090288625.pdf [firstpage_image] =>[orig_patent_app_number] => 12408207 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/408207
Valve timing control device Mar 19, 2009 Issued
Array ( [id] => 6127747 [patent_doc_number] => 20110005227 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-01-13 [patent_title] => 'EXHAUST GAS HEAT RECOVERY UNIT AND EXHAUST GAS HEAT RECOVERY METHOD' [patent_app_type] => utility [patent_app_number] => 12/921911 [patent_app_country] => US [patent_app_date] => 2009-03-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 7555 [patent_no_of_claims] => 15 [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/A1/0005/20110005227.pdf [firstpage_image] =>[orig_patent_app_number] => 12921911 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/921911
EXHAUST GAS HEAT RECOVERY UNIT AND EXHAUST GAS HEAT RECOVERY METHOD Mar 12, 2009 Abandoned
Array ( [id] => 5400573 [patent_doc_number] => 20090235886 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-09-24 [patent_title] => 'VARIABLE VALVE ACTUATING APPARATUS FOR INTERNAL COMBUSTION ENGINE AND CONTROL SHAFT FOR VARIABLE VALVE ACTUATING APPARATUS' [patent_app_type] => utility [patent_app_number] => 12/402017 [patent_app_country] => US [patent_app_date] => 2009-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 7972 [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/A1/0235/20090235886.pdf [firstpage_image] =>[orig_patent_app_number] => 12402017 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/402017
Variable valve actuating apparatus for internal combustion engine and control shaft for variable valve actuating apparatus Mar 10, 2009 Issued
Array ( [id] => 7758273 [patent_doc_number] => 08113163 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-02-14 [patent_title] => 'Concentric camshaft and method of assembly' [patent_app_type] => utility [patent_app_number] => 12/400265 [patent_app_country] => US [patent_app_date] => 2009-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2190 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/113/08113163.pdf [firstpage_image] =>[orig_patent_app_number] => 12400265 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/400265
Concentric camshaft and method of assembly Mar 8, 2009 Issued
Array ( [id] => 5400570 [patent_doc_number] => 20090235883 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-09-24 [patent_title] => 'VALVE TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 12/398459 [patent_app_country] => US [patent_app_date] => 2009-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 13399 [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/A1/0235/20090235883.pdf [firstpage_image] =>[orig_patent_app_number] => 12398459 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/398459
Valve timing control apparatus for internal combustion engine Mar 4, 2009 Issued
Array ( [id] => 7558087 [patent_doc_number] => 20110271918 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-11-10 [patent_title] => 'VARIABLE VALVE OPERATING APPARATUS FOR INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 13/142664 [patent_app_country] => US [patent_app_date] => 2009-02-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 17031 [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/A1/0271/20110271918.pdf [firstpage_image] =>[orig_patent_app_number] => 13142664 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/142664
Variable valve operating apparatus for internal combustion engine Feb 24, 2009 Issued
Array ( [id] => 7500081 [patent_doc_number] => 08033256 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-10-11 [patent_title] => 'Engine having variable valve mechanism' [patent_app_type] => utility [patent_app_number] => 12/372798 [patent_app_country] => US [patent_app_date] => 2009-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 5270 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/033/08033256.pdf [firstpage_image] =>[orig_patent_app_number] => 12372798 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/372798
Engine having variable valve mechanism Feb 17, 2009 Issued
Array ( [id] => 8100213 [patent_doc_number] => 08151752 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-04-10 [patent_title] => 'Deactivating hydraulic lash adjuster for oriented mounting in an engine' [patent_app_type] => utility [patent_app_number] => 12/322905 [patent_app_country] => US [patent_app_date] => 2009-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 11 [patent_no_of_words] => 2948 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 190 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/151/08151752.pdf [firstpage_image] =>[orig_patent_app_number] => 12322905 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/322905
Deactivating hydraulic lash adjuster for oriented mounting in an engine Feb 8, 2009 Issued
Array ( [id] => 7484487 [patent_doc_number] => 08028667 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-10-04 [patent_title] => 'Valve timing adjusting apparatus' [patent_app_type] => utility [patent_app_number] => 12/364579 [patent_app_country] => US [patent_app_date] => 2009-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 16 [patent_no_of_words] => 14271 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 511 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/028/08028667.pdf [firstpage_image] =>[orig_patent_app_number] => 12364579 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/364579
Valve timing adjusting apparatus Feb 2, 2009 Issued
Array ( [id] => 4435017 [patent_doc_number] => 07926459 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-04-19 [patent_title] => 'Device for opening and closing a valve of a valve assembly of a combustion engine as well as for adjusting the stroke of the valve' [patent_app_type] => utility [patent_app_number] => 12/361847 [patent_app_country] => US [patent_app_date] => 2009-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3324 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 214 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/926/07926459.pdf [firstpage_image] =>[orig_patent_app_number] => 12361847 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/361847
Device for opening and closing a valve of a valve assembly of a combustion engine as well as for adjusting the stroke of the valve Jan 28, 2009 Issued
Array ( [id] => 8013999 [patent_doc_number] => 08136496 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-03-20 [patent_title] => 'Valve rotator assembly' [patent_app_type] => utility [patent_app_number] => 12/362379 [patent_app_country] => US [patent_app_date] => 2009-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 4282 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/136/08136496.pdf [firstpage_image] =>[orig_patent_app_number] => 12362379 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/362379
Valve rotator assembly Jan 28, 2009 Issued
Array ( [id] => 9164828 [patent_doc_number] => 08590499 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-11-26 [patent_title] => 'Camshaft module for attachment to a cylinder head of an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 12/865662 [patent_app_country] => US [patent_app_date] => 2009-01-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 4612 [patent_no_of_claims] => 14 [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] => 12865662 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/865662
Camshaft module for attachment to a cylinder head of an internal combustion engine Jan 27, 2009 Issued
Array ( [id] => 4627783 [patent_doc_number] => 08006658 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-08-30 [patent_title] => 'Variable valve actuation apparatus of internal combustion engine' [patent_app_type] => utility [patent_app_number] => 12/360309 [patent_app_country] => US [patent_app_date] => 2009-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 25 [patent_no_of_words] => 18935 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 333 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/006/08006658.pdf [firstpage_image] =>[orig_patent_app_number] => 12360309 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/360309
Variable valve actuation apparatus of internal combustion engine Jan 26, 2009 Issued
Array ( [id] => 7533550 [patent_doc_number] => 08047171 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-11-01 [patent_title] => 'Device for setting the relative rotational position of a camshaft of an internal combustion engine relative to a crankshaft driving the camshaft' [patent_app_type] => utility [patent_app_number] => 12/359499 [patent_app_country] => US [patent_app_date] => 2009-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 7 [patent_no_of_words] => 1936 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/047/08047171.pdf [firstpage_image] =>[orig_patent_app_number] => 12359499 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/359499
Device for setting the relative rotational position of a camshaft of an internal combustion engine relative to a crankshaft driving the camshaft Jan 25, 2009 Issued
Array ( [id] => 9138442 [patent_doc_number] => 08578896 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-11-12 [patent_title] => 'Method for bounce suppression of a valve switched by a piezo actuator' [patent_app_type] => utility [patent_app_number] => 12/735902 [patent_app_country] => US [patent_app_date] => 2009-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 14 [patent_no_of_words] => 3530 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12735902 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/735902
Method for bounce suppression of a valve switched by a piezo actuator Jan 25, 2009 Issued
Array ( [id] => 7543849 [patent_doc_number] => 08051812 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-11-08 [patent_title] => 'Variable valve actuator with a pneumatic booster' [patent_app_type] => utility [patent_app_number] => 12/321789 [patent_app_country] => US [patent_app_date] => 2009-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 7451 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/051/08051812.pdf [firstpage_image] =>[orig_patent_app_number] => 12321789 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/321789
Variable valve actuator with a pneumatic booster Jan 25, 2009 Issued
Array ( [id] => 4622648 [patent_doc_number] => 08001941 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-08-23 [patent_title] => 'Lash adjuster' [patent_app_type] => utility [patent_app_number] => 12/357477 [patent_app_country] => US [patent_app_date] => 2009-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 4400 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 251 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/001/08001941.pdf [firstpage_image] =>[orig_patent_app_number] => 12357477 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/357477
Lash adjuster Jan 21, 2009 Issued
Array ( [id] => 5352356 [patent_doc_number] => 20090183700 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-07-23 [patent_title] => 'VALVE TRAIN OF AN INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 12/353556 [patent_app_country] => US [patent_app_date] => 2009-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3814 [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/A1/0183/20090183700.pdf [firstpage_image] =>[orig_patent_app_number] => 12353556 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/353556
Valve train of an internal combustion engine Jan 13, 2009 Issued
Array ( [id] => 6378213 [patent_doc_number] => 20100175648 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-07-15 [patent_title] => 'MECHANICAL VARIABLE CAMSHAFT TIMING DEVICE' [patent_app_type] => utility [patent_app_number] => 12/351049 [patent_app_country] => US [patent_app_date] => 2009-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 6188 [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/A1/0175/20100175648.pdf [firstpage_image] =>[orig_patent_app_number] => 12351049 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/351049
Mechanical variable camshaft timing device Jan 8, 2009 Issued
Array ( [id] => 7543858 [patent_doc_number] => 08051821 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-11-08 [patent_title] => 'Camshaft apparatus' [patent_app_type] => utility [patent_app_number] => 12/318839 [patent_app_country] => US [patent_app_date] => 2009-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5215 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 233 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/051/08051821.pdf [firstpage_image] =>[orig_patent_app_number] => 12318839 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/318839
Camshaft apparatus Jan 8, 2009 Issued
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