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] => 815537 [patent_doc_number] => 07409939 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-08-12 [patent_title] => 'Cylinder head having an integrally cast rocker shaft pedestal' [patent_app_type] => utility [patent_app_number] => 10/662822 [patent_app_country] => US [patent_app_date] => 2003-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 1895 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/409/07409939.pdf [firstpage_image] =>[orig_patent_app_number] => 10662822 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/662822
Cylinder head having an integrally cast rocker shaft pedestal Sep 15, 2003 Issued
Array ( [id] => 1129178 [patent_doc_number] => 06782854 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-08-31 [patent_title] => 'Valve timing control device' [patent_app_type] => B2 [patent_app_number] => 10/649619 [patent_app_country] => US [patent_app_date] => 2003-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2746 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/782/06782854.pdf [firstpage_image] =>[orig_patent_app_number] => 10649619 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/649619
Valve timing control device Aug 27, 2003 Issued
Array ( [id] => 7364263 [patent_doc_number] => 20040025820 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-02-12 [patent_title] => 'Valve mechanism with a variable valve opening cross-section' [patent_app_type] => new [patent_app_number] => 10/399662 [patent_app_country] => US [patent_app_date] => 2003-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 4481 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 13 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0025/20040025820.pdf [firstpage_image] =>[orig_patent_app_number] => 10399662 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/399662
Valve mechanism with a variable valve opening cross-section Aug 26, 2003 Issued
Array ( [id] => 1141369 [patent_doc_number] => 06769387 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-08-03 [patent_title] => 'Compact two-step rocker arm assembly' [patent_app_type] => B2 [patent_app_number] => 10/649217 [patent_app_country] => US [patent_app_date] => 2003-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 12 [patent_no_of_words] => 3532 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/769/06769387.pdf [firstpage_image] =>[orig_patent_app_number] => 10649217 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/649217
Compact two-step rocker arm assembly Aug 25, 2003 Issued
Array ( [id] => 7200410 [patent_doc_number] => 20040069260 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-04-15 [patent_title] => 'Oil passage structure for engine' [patent_app_type] => new [patent_app_number] => 10/646694 [patent_app_country] => US [patent_app_date] => 2003-08-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 8698 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0069/20040069260.pdf [firstpage_image] =>[orig_patent_app_number] => 10646694 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/646694
Oil passage structure for engine Aug 24, 2003 Issued
Array ( [id] => 1129175 [patent_doc_number] => 06782853 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-08-31 [patent_title] => 'Control apparatus and method for valve actuating system of internal combustion engine' [patent_app_type] => B2 [patent_app_number] => 10/645912 [patent_app_country] => US [patent_app_date] => 2003-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 19 [patent_no_of_words] => 9901 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/782/06782853.pdf [firstpage_image] =>[orig_patent_app_number] => 10645912 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/645912
Control apparatus and method for valve actuating system of internal combustion engine Aug 21, 2003 Issued
Array ( [id] => 7188046 [patent_doc_number] => 20050039714 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-02-24 [patent_title] => 'Valve-operating lever' [patent_app_type] => utility [patent_app_number] => 10/646197 [patent_app_country] => US [patent_app_date] => 2003-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 3567 [patent_no_of_claims] => 35 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0039/20050039714.pdf [firstpage_image] =>[orig_patent_app_number] => 10646197 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/646197
Valve-operating lever Aug 21, 2003 Issued
Array ( [id] => 1019065 [patent_doc_number] => 06886512 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-05-03 [patent_title] => 'Variable valve-stroke controls' [patent_app_type] => utility [patent_app_number] => 10/643472 [patent_app_country] => US [patent_app_date] => 2003-08-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3333 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 185 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/886/06886512.pdf [firstpage_image] =>[orig_patent_app_number] => 10643472 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/643472
Variable valve-stroke controls Aug 18, 2003 Issued
Array ( [id] => 1101788 [patent_doc_number] => 06810841 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-11-02 [patent_title] => 'Electronic valve actuator control system and method' [patent_app_type] => B1 [patent_app_number] => 10/641882 [patent_app_country] => US [patent_app_date] => 2003-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 4250 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 163 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/810/06810841.pdf [firstpage_image] =>[orig_patent_app_number] => 10641882 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/641882
Electronic valve actuator control system and method Aug 15, 2003 Issued
Array ( [id] => 1044869 [patent_doc_number] => 06863040 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-03-08 [patent_title] => 'Rocker arm' [patent_app_type] => utility [patent_app_number] => 10/634762 [patent_app_country] => US [patent_app_date] => 2003-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 23 [patent_no_of_words] => 8429 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 303 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/863/06863040.pdf [firstpage_image] =>[orig_patent_app_number] => 10634762 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/634762
Rocker arm Aug 5, 2003 Issued
Array ( [id] => 728350 [patent_doc_number] => 07036470 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-05-02 [patent_title] => 'Four-cycle engine' [patent_app_type] => utility [patent_app_number] => 10/631117 [patent_app_country] => US [patent_app_date] => 2003-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 11 [patent_no_of_words] => 10370 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 208 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/036/07036470.pdf [firstpage_image] =>[orig_patent_app_number] => 10631117 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/631117
Four-cycle engine Jul 30, 2003 Issued
Array ( [id] => 5789145 [patent_doc_number] => 20060011060 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2006-01-19 [patent_title] => 'Electrically operated valve for controlling flow of hydraulic fluid' [patent_app_type] => utility [patent_app_number] => 10/522266 [patent_app_country] => US [patent_app_date] => 2003-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1837 [patent_no_of_claims] => 24 [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/A1/0011/20060011060.pdf [firstpage_image] =>[orig_patent_app_number] => 10522266 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/522266
Electrically operated valve for controlling flow of hydraulic fluid Jul 29, 2003 Issued
Array ( [id] => 7129315 [patent_doc_number] => 20040040530 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-03-04 [patent_title] => 'Internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/629609 [patent_app_country] => US [patent_app_date] => 2003-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 6340 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 32 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0040/20040040530.pdf [firstpage_image] =>[orig_patent_app_number] => 10629609 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/629609
Internal combustion engine Jul 29, 2003 Issued
Array ( [id] => 7438482 [patent_doc_number] => 20040050352 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-03-18 [patent_title] => 'Variable valve train for a cam-activated lifting valve of an internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/624592 [patent_app_country] => US [patent_app_date] => 2003-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2757 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 15 [patent_words_short_claim] => 24 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0050/20040050352.pdf [firstpage_image] =>[orig_patent_app_number] => 10624592 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/624592
Variable valve train for a cam-activated lifting valve of an internal combustion engine Jul 22, 2003 Abandoned
Array ( [id] => 533371 [patent_doc_number] => 07162982 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2007-01-16 [patent_title] => 'Hydraulic valve actuator for reciprocating engine' [patent_app_type] => utility [patent_app_number] => 10/521739 [patent_app_country] => US [patent_app_date] => 2003-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 22 [patent_no_of_words] => 8834 [patent_no_of_claims] => 57 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 454 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/162/07162982.pdf [firstpage_image] =>[orig_patent_app_number] => 10521739 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/521739
Hydraulic valve actuator for reciprocating engine Jul 17, 2003 Issued
Array ( [id] => 7119650 [patent_doc_number] => 20050011479 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-01-20 [patent_title] => 'Control system and method for a valve actuator' [patent_app_type] => utility [patent_app_number] => 10/618737 [patent_app_country] => US [patent_app_date] => 2003-07-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 7114 [patent_no_of_claims] => 38 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0011/20050011479.pdf [firstpage_image] =>[orig_patent_app_number] => 10618737 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/618737
Control system and method for a valve actuator Jul 14, 2003 Issued
Array ( [id] => 7385669 [patent_doc_number] => 20040016414 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-01-29 [patent_title] => 'Engine' [patent_app_type] => new [patent_app_number] => 10/617842 [patent_app_country] => US [patent_app_date] => 2003-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 9859 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0016/20040016414.pdf [firstpage_image] =>[orig_patent_app_number] => 10617842 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/617842
Engine Jul 13, 2003 Issued
Array ( [id] => 1138621 [patent_doc_number] => 06772719 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-08-10 [patent_title] => 'Hydraulic valve lifter with operating control system' [patent_app_type] => B2 [patent_app_number] => 10/616687 [patent_app_country] => US [patent_app_date] => 2003-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2022 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 268 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/772/06772719.pdf [firstpage_image] =>[orig_patent_app_number] => 10616687 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/616687
Hydraulic valve lifter with operating control system Jul 9, 2003 Issued
Array ( [id] => 601245 [patent_doc_number] => 07431000 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-10-07 [patent_title] => 'Valve-actuating for internal combustion engine' [patent_app_type] => utility [patent_app_number] => 10/516947 [patent_app_country] => US [patent_app_date] => 2003-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 4509 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 189 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/431/07431000.pdf [firstpage_image] =>[orig_patent_app_number] => 10516947 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/516947
Valve-actuating for internal combustion engine Jul 1, 2003 Issued
Array ( [id] => 7266911 [patent_doc_number] => 20040055550 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-03-25 [patent_title] => 'Spool valve controlled VCT locking pin release mechanism' [patent_app_type] => new [patent_app_number] => 10/603637 [patent_app_country] => US [patent_app_date] => 2003-06-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 7292 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 268 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0055/20040055550.pdf [firstpage_image] =>[orig_patent_app_number] => 10603637 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/603637
Spool valve controlled VCT locking pin release mechanism Jun 24, 2003 Issued
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