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] => 5195978 [patent_doc_number] => 20070295296 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-12-27 [patent_title] => 'Adjustable camshaft' [patent_app_type] => utility [patent_app_number] => 11/820257 [patent_app_country] => US [patent_app_date] => 2007-06-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2409 [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/A1/0295/20070295296.pdf [firstpage_image] =>[orig_patent_app_number] => 11820257 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/820257
Adjustable camshaft Jun 18, 2007 Issued
Array ( [id] => 5122720 [patent_doc_number] => 20070234989 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-10-11 [patent_title] => 'VALVE OPERATING ASSEMBLY AND METHOD OF MANUFACTURING' [patent_app_type] => utility [patent_app_number] => 11/762724 [patent_app_country] => US [patent_app_date] => 2007-06-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 67 [patent_figures_cnt] => 67 [patent_no_of_words] => 17466 [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/A1/0234/20070234989.pdf [firstpage_image] =>[orig_patent_app_number] => 11762724 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/762724
VALVE OPERATING ASSEMBLY AND METHOD OF MANUFACTURING Jun 12, 2007 Abandoned
Array ( [id] => 4929665 [patent_doc_number] => 20080000440 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-01-03 [patent_title] => 'Support arrangement for cam follower for actuating a gas exchange valve of an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/818061 [patent_app_country] => US [patent_app_date] => 2007-06-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1406 [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/A1/0000/20080000440.pdf [firstpage_image] =>[orig_patent_app_number] => 11818061 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/818061
Support arrangement for cam follower for actuating a gas exchange valve of an internal combustion engine Jun 12, 2007 Abandoned
Array ( [id] => 5195977 [patent_doc_number] => 20070295295 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-12-27 [patent_title] => 'Phase angle detection apparatus and variable valve timing control apparatus using the phase angle detection apparatus for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/808540 [patent_app_country] => US [patent_app_date] => 2007-06-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 10780 [patent_no_of_claims] => 13 [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/A1/0295/20070295295.pdf [firstpage_image] =>[orig_patent_app_number] => 11808540 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/808540
Phase angle detection apparatus and variable valve timing control apparatus using the phase angle detection apparatus for internal combustion engine Jun 10, 2007 Abandoned
Array ( [id] => 4549606 [patent_doc_number] => 07845320 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-12-07 [patent_title] => 'Adjustable camshaft sprocket assembly and tool for same' [patent_app_type] => utility [patent_app_number] => 11/811187 [patent_app_country] => US [patent_app_date] => 2007-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 4860 [patent_no_of_claims] => 15 [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/07/845/07845320.pdf [firstpage_image] =>[orig_patent_app_number] => 11811187 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/811187
Adjustable camshaft sprocket assembly and tool for same Jun 7, 2007 Issued
Array ( [id] => 11345 [patent_doc_number] => 07802546 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-09-28 [patent_title] => 'Variable valve actuating apparatus and process for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/808320 [patent_app_country] => US [patent_app_date] => 2007-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 21 [patent_no_of_words] => 10745 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/802/07802546.pdf [firstpage_image] =>[orig_patent_app_number] => 11808320 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/808320
Variable valve actuating apparatus and process for internal combustion engine Jun 7, 2007 Issued
Array ( [id] => 5460580 [patent_doc_number] => 20090320780 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-12-31 [patent_title] => 'CONTROL ARRANGEMENT FOR A GAS EXCHANGE VALVE IN A PISTON ENGINE AND METHOD OF CONTROLLING A GAS EXCHANGE VALVE IN A PISTON ENGINE' [patent_app_type] => utility [patent_app_number] => 12/306755 [patent_app_country] => US [patent_app_date] => 2007-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3115 [patent_no_of_claims] => 11 [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/A1/0320/20090320780.pdf [firstpage_image] =>[orig_patent_app_number] => 12306755 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/306755
Control arrangement for a gas exchange valve in a piston engine and method of controlling a gas exchange valve in a piston engine Jun 5, 2007 Issued
Array ( [id] => 325363 [patent_doc_number] => 07513226 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-04-07 [patent_title] => 'Hydraulic control system for a switching valve train' [patent_app_type] => utility [patent_app_number] => 11/756847 [patent_app_country] => US [patent_app_date] => 2007-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2877 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/513/07513226.pdf [firstpage_image] =>[orig_patent_app_number] => 11756847 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/756847
Hydraulic control system for a switching valve train May 31, 2007 Issued
Array ( [id] => 165285 [patent_doc_number] => 07665437 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-02-23 [patent_title] => 'Oil passage structure of valve operating system' [patent_app_type] => utility [patent_app_number] => 12/158768 [patent_app_country] => US [patent_app_date] => 2007-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2185 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/665/07665437.pdf [firstpage_image] =>[orig_patent_app_number] => 12158768 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/158768
Oil passage structure of valve operating system May 31, 2007 Issued
Array ( [id] => 4511996 [patent_doc_number] => 07938090 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-05-10 [patent_title] => 'Variable phase mechanism' [patent_app_type] => utility [patent_app_number] => 12/374455 [patent_app_country] => US [patent_app_date] => 2007-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 29 [patent_no_of_words] => 3179 [patent_no_of_claims] => 17 [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/07/938/07938090.pdf [firstpage_image] =>[orig_patent_app_number] => 12374455 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/374455
Variable phase mechanism May 31, 2007 Issued
Array ( [id] => 5581895 [patent_doc_number] => 20090101097 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-04-23 [patent_title] => 'Valve driving device for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/990846 [patent_app_country] => US [patent_app_date] => 2007-05-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 8067 [patent_no_of_claims] => 8 [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/A1/0101/20090101097.pdf [firstpage_image] =>[orig_patent_app_number] => 11990846 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/990846
Valve driving device for internal combustion engine May 28, 2007 Issued
Array ( [id] => 5007278 [patent_doc_number] => 20070277755 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-12-06 [patent_title] => 'Variable valve operating apparatus for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/802889 [patent_app_country] => US [patent_app_date] => 2007-05-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 9054 [patent_no_of_claims] => 15 [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/A1/0277/20070277755.pdf [firstpage_image] =>[orig_patent_app_number] => 11802889 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/802889
Variable valve operating apparatus for internal combustion engine May 24, 2007 Abandoned
Array ( [id] => 544658 [patent_doc_number] => 07469670 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-12-30 [patent_title] => 'Adjustable camshaft' [patent_app_type] => utility [patent_app_number] => 11/807099 [patent_app_country] => US [patent_app_date] => 2007-05-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 2442 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/469/07469670.pdf [firstpage_image] =>[orig_patent_app_number] => 11807099 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/807099
Adjustable camshaft May 24, 2007 Issued
Array ( [id] => 368802 [patent_doc_number] => 07475658 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-01-13 [patent_title] => 'Electrohydraulic control module' [patent_app_type] => utility [patent_app_number] => 11/753038 [patent_app_country] => US [patent_app_date] => 2007-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 2007 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/475/07475658.pdf [firstpage_image] =>[orig_patent_app_number] => 11753038 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/753038
Electrohydraulic control module May 23, 2007 Issued
Array ( [id] => 4973849 [patent_doc_number] => 20070215077 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-09-20 [patent_title] => 'ELECTROMECHANICAL VALVE ACTUATOR BEGINNING OF STROKE DAMPER' [patent_app_type] => utility [patent_app_number] => 11/752572 [patent_app_country] => US [patent_app_date] => 2007-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4699 [patent_no_of_claims] => 21 [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/A1/0215/20070215077.pdf [firstpage_image] =>[orig_patent_app_number] => 11752572 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/752572
ELECTROMECHANICAL VALVE ACTUATOR BEGINNING OF STROKE DAMPER May 22, 2007 Abandoned
Array ( [id] => 558618 [patent_doc_number] => 07458351 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-12-02 [patent_title] => 'Valve timing controller' [patent_app_type] => utility [patent_app_number] => 11/798548 [patent_app_country] => US [patent_app_date] => 2007-05-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 23 [patent_no_of_words] => 5812 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/458/07458351.pdf [firstpage_image] =>[orig_patent_app_number] => 11798548 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/798548
Valve timing controller May 14, 2007 Issued
Array ( [id] => 4973855 [patent_doc_number] => 20070215083 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-09-20 [patent_title] => 'Device for controlling the lift of a gas exchange valve in an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/798307 [patent_app_country] => US [patent_app_date] => 2007-05-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2728 [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/A1/0215/20070215083.pdf [firstpage_image] =>[orig_patent_app_number] => 11798307 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/798307
Device for controlling the lift of a gas exchange valve in an internal combustion engine May 10, 2007 Issued
Array ( [id] => 5007282 [patent_doc_number] => 20070277759 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-12-06 [patent_title] => 'Valve timing controller' [patent_app_type] => utility [patent_app_number] => 11/790967 [patent_app_country] => US [patent_app_date] => 2007-04-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3028 [patent_no_of_claims] => 9 [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/A1/0277/20070277759.pdf [firstpage_image] =>[orig_patent_app_number] => 11790967 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/790967
Valve timing controller Apr 29, 2007 Issued
Array ( [id] => 5082135 [patent_doc_number] => 20070272185 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2007-11-29 [patent_title] => 'HYDRAULIC LASH ADJUSTER FOR AN INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 11/740472 [patent_app_country] => US [patent_app_date] => 2007-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2286 [patent_no_of_claims] => 4 [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/A1/0272/20070272185.pdf [firstpage_image] =>[orig_patent_app_number] => 11740472 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/740472
HYDRAULIC LASH ADJUSTER FOR AN INTERNAL COMBUSTION ENGINE Apr 25, 2007 Abandoned
Array ( [id] => 7708430 [patent_doc_number] => 08091522 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2012-01-10 [patent_title] => 'Variable valve driving device' [patent_app_type] => utility [patent_app_number] => 12/300467 [patent_app_country] => US [patent_app_date] => 2007-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2844 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/08/091/08091522.pdf [firstpage_image] =>[orig_patent_app_number] => 12300467 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/300467
Variable valve driving device Apr 25, 2007 Issued
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