Search

Ching Chang

Examiner (ID: 13382, 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] => 6694316 [patent_doc_number] => 20030106510 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-06-12 [patent_title] => 'Variable valve mechanism for an engine' [patent_app_type] => new [patent_app_number] => 10/066107 [patent_app_country] => US [patent_app_date] => 2002-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2056 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 52 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0106/20030106510.pdf [firstpage_image] =>[orig_patent_app_number] => 10066107 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/066107
Variable valve mechanism for an engine Jan 30, 2002 Issued
Array ( [id] => 6011309 [patent_doc_number] => 20020100441 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-08-01 [patent_title] => 'Variable valve control system for internal combustion engine' [patent_app_type] => new [patent_app_number] => 09/683618 [patent_app_country] => US [patent_app_date] => 2002-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 3398 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 153 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0100/20020100441.pdf [firstpage_image] =>[orig_patent_app_number] => 09683618 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/683618
Variable valve control system for internal combustion engine Jan 24, 2002 Abandoned
Array ( [id] => 1361051 [patent_doc_number] => 06550435 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-04-22 [patent_title] => 'Variable valve timing adjustable finger follower assembly' [patent_app_type] => B1 [patent_app_number] => 09/683554 [patent_app_country] => US [patent_app_date] => 2002-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 10 [patent_no_of_words] => 3054 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/550/06550435.pdf [firstpage_image] =>[orig_patent_app_number] => 09683554 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/683554
Variable valve timing adjustable finger follower assembly Jan 16, 2002 Issued
Array ( [id] => 6758123 [patent_doc_number] => 20030121484 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-07-03 [patent_title] => 'Continuously variable valve timing, lift and duration for internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/035271 [patent_app_country] => US [patent_app_date] => 2002-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 4079 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 29 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0121/20030121484.pdf [firstpage_image] =>[orig_patent_app_number] => 10035271 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/035271
Continuously variable valve timing, lift and duration for internal combustion engine Jan 2, 2002 Abandoned
Array ( [id] => 1281770 [patent_doc_number] => 06631699 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-10-14 [patent_title] => 'Air fuel module' [patent_app_type] => B2 [patent_app_number] => 10/028749 [patent_app_country] => US [patent_app_date] => 2001-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 2299 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/631/06631699.pdf [firstpage_image] =>[orig_patent_app_number] => 10028749 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/028749
Air fuel module Dec 19, 2001 Issued
Array ( [id] => 7968607 [patent_doc_number] => 06679205 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-01-20 [patent_title] => 'Control system and control method of engine' [patent_app_type] => B2 [patent_app_number] => 10/022408 [patent_app_country] => US [patent_app_date] => 2001-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 7216 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/679/06679205.pdf [firstpage_image] =>[orig_patent_app_number] => 10022408 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/022408
Control system and control method of engine Dec 19, 2001 Issued
Array ( [id] => 6074622 [patent_doc_number] => 20020078912 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-06-27 [patent_title] => 'Solenoid-type valve actuator for internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/027072 [patent_app_country] => US [patent_app_date] => 2001-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 4112 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0078/20020078912.pdf [firstpage_image] =>[orig_patent_app_number] => 10027072 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/027072
Solenoid-type valve actuator for internal combustion engine Dec 19, 2001 Issued
Array ( [id] => 1326990 [patent_doc_number] => 06588385 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-07-08 [patent_title] => 'Engine valve drive control apparatus and method' [patent_app_type] => B2 [patent_app_number] => 10/020912 [patent_app_country] => US [patent_app_date] => 2001-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 8813 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/588/06588385.pdf [firstpage_image] =>[orig_patent_app_number] => 10020912 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/020912
Engine valve drive control apparatus and method Dec 18, 2001 Issued
Array ( [id] => 6666048 [patent_doc_number] => 20030111031 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-06-19 [patent_title] => 'VARIABLE VALVE ACTUATION ASSEMBLY FOR AN INTERNAL COMBUSTION ENGINE' [patent_app_type] => new [patent_app_number] => 10/023382 [patent_app_country] => US [patent_app_date] => 2001-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 4070 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0111/20030111031.pdf [firstpage_image] =>[orig_patent_app_number] => 10023382 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/023382
Variable valve actuation assembly for an internal combustion engine Dec 16, 2001 Issued
Array ( [id] => 1361015 [patent_doc_number] => 06550432 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-04-22 [patent_title] => 'Vehicle multi-cylinder engine' [patent_app_type] => B2 [patent_app_number] => 10/000961 [patent_app_country] => US [patent_app_date] => 2001-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 9898 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 245 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/550/06550432.pdf [firstpage_image] =>[orig_patent_app_number] => 10000961 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/000961
Vehicle multi-cylinder engine Dec 3, 2001 Issued
Array ( [id] => 6666051 [patent_doc_number] => 20030111034 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-06-19 [patent_title] => 'Valve train of an internal combustion engine comprising one or more switchable support elements' [patent_app_type] => new [patent_app_number] => 09/997637 [patent_app_country] => US [patent_app_date] => 2001-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2025 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0111/20030111034.pdf [firstpage_image] =>[orig_patent_app_number] => 09997637 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/997637
Valve train of an internal combustion engine comprising one or more switchable support elements Nov 28, 2001 Issued
Array ( [id] => 1297977 [patent_doc_number] => 06615778 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-09-09 [patent_title] => 'Apparatus and method for diagnosing variable valve timing apparatus' [patent_app_type] => B2 [patent_app_number] => 09/989380 [patent_app_country] => US [patent_app_date] => 2001-11-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 2800 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/615/06615778.pdf [firstpage_image] =>[orig_patent_app_number] => 09989380 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/989380
Apparatus and method for diagnosing variable valve timing apparatus Nov 20, 2001 Issued
Array ( [id] => 5932170 [patent_doc_number] => 20020059911 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-05-23 [patent_title] => 'Internal combustion engine' [patent_app_type] => new [patent_app_number] => 09/989698 [patent_app_country] => US [patent_app_date] => 2001-11-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 9444 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0059/20020059911.pdf [firstpage_image] =>[orig_patent_app_number] => 09989698 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/989698
Internal combustion engine Nov 20, 2001 Issued
Array ( [id] => 1261633 [patent_doc_number] => 06655329 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-12-02 [patent_title] => 'Variable valve train for a cam activated lifting valve of an internal combustion engine' [patent_app_type] => B2 [patent_app_number] => 09/988379 [patent_app_country] => US [patent_app_date] => 2001-11-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 7 [patent_no_of_words] => 2719 [patent_no_of_claims] => 27 [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/06/655/06655329.pdf [firstpage_image] =>[orig_patent_app_number] => 09988379 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/988379
Variable valve train for a cam activated lifting valve of an internal combustion engine Nov 18, 2001 Issued
Array ( [id] => 1279134 [patent_doc_number] => 06634330 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-10-21 [patent_title] => 'Valve system for engine' [patent_app_type] => B2 [patent_app_number] => 09/988003 [patent_app_country] => US [patent_app_date] => 2001-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 10282 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/634/06634330.pdf [firstpage_image] =>[orig_patent_app_number] => 09988003 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/988003
Valve system for engine Nov 15, 2001 Issued
Array ( [id] => 6586091 [patent_doc_number] => 20020062803 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-05-30 [patent_title] => 'Valve timing adjusting device for internal combustion engine' [patent_app_type] => new [patent_app_number] => 09/985806 [patent_app_country] => US [patent_app_date] => 2001-11-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 7567 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 200 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0062/20020062803.pdf [firstpage_image] =>[orig_patent_app_number] => 09985806 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/985806
Valve timing adjusting device for internal combustion engine Nov 5, 2001 Issued
Array ( [id] => 6867016 [patent_doc_number] => 20030079705 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-05-01 [patent_title] => 'Valve actuation linkage mechanism' [patent_app_type] => new [patent_app_number] => 10/016563 [patent_app_country] => US [patent_app_date] => 2001-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 4214 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 34 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0079/20030079705.pdf [firstpage_image] =>[orig_patent_app_number] => 10016563 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/016563
Valve actuation linkage mechanism Oct 29, 2001 Issued
Array ( [id] => 1495792 [patent_doc_number] => 06484679 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2002-11-26 [patent_title] => 'Engine valve operation mechanism' [patent_app_type] => B2 [patent_app_number] => 09/984156 [patent_app_country] => US [patent_app_date] => 2001-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 7237 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 198 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/484/06484679.pdf [firstpage_image] =>[orig_patent_app_number] => 09984156 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/984156
Engine valve operation mechanism Oct 28, 2001 Issued
Array ( [id] => 1332249 [patent_doc_number] => 06581555 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-06-24 [patent_title] => 'Method and device for opening and closing a valve of an internal combustion engine' [patent_app_type] => B1 [patent_app_number] => 10/018496 [patent_app_country] => US [patent_app_date] => 2001-10-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1822 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/581/06581555.pdf [firstpage_image] =>[orig_patent_app_number] => 10018496 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/018496
Method and device for opening and closing a valve of an internal combustion engine Oct 28, 2001 Issued
Array ( [id] => 6345260 [patent_doc_number] => 20020056426 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-05-16 [patent_title] => 'Valve operating control system for engine' [patent_app_type] => new [patent_app_number] => 09/983122 [patent_app_country] => US [patent_app_date] => 2001-10-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 10911 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0056/20020056426.pdf [firstpage_image] =>[orig_patent_app_number] => 09983122 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/983122
Valve operating control system for engine Oct 22, 2001 Issued
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