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] => 6641743 [patent_doc_number] => 20030075131 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-04-24 [patent_title] => 'Automatic valve clearance adjuster' [patent_app_type] => new [patent_app_number] => 10/182888 [patent_app_country] => US [patent_app_date] => 2002-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6826 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 17 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0075/20030075131.pdf [firstpage_image] =>[orig_patent_app_number] => 10182888 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/182888
Automatic valve clearance adjuster Sep 23, 2002 Abandoned
Array ( [id] => 6742268 [patent_doc_number] => 20030019451 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-01-30 [patent_title] => 'Valve timing control system and method of producing valve timing control system' [patent_app_type] => new [patent_app_number] => 10/252089 [patent_app_country] => US [patent_app_date] => 2002-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3820 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0019/20030019451.pdf [firstpage_image] =>[orig_patent_app_number] => 10252089 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/252089
Valve timing control system and method of producing valve timing control system Sep 22, 2002 Issued
Array ( [id] => 703862 [patent_doc_number] => 07059282 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-06-13 [patent_title] => 'Variable lost motion valve actuator and method' [patent_app_type] => utility [patent_app_number] => 10/251748 [patent_app_country] => US [patent_app_date] => 2002-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 67 [patent_figures_cnt] => 81 [patent_no_of_words] => 27906 [patent_no_of_claims] => 38 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/059/07059282.pdf [firstpage_image] =>[orig_patent_app_number] => 10251748 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/251748
Variable lost motion valve actuator and method Sep 22, 2002 Issued
Array ( [id] => 1329376 [patent_doc_number] => 06584943 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-07-01 [patent_title] => 'Variable compound rocker system for push rod and overhead camshaft engines' [patent_app_type] => B1 [patent_app_number] => 10/246138 [patent_app_country] => US [patent_app_date] => 2002-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2015 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/584/06584943.pdf [firstpage_image] =>[orig_patent_app_number] => 10246138 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/246138
Variable compound rocker system for push rod and overhead camshaft engines Sep 17, 2002 Issued
Array ( [id] => 6718003 [patent_doc_number] => 20030051690 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-03-20 [patent_title] => 'Switching element for a valve train of an internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/246278 [patent_app_country] => US [patent_app_date] => 2002-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1924 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0051/20030051690.pdf [firstpage_image] =>[orig_patent_app_number] => 10246278 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/246278
Switching element for a valve train of an internal combustion engine Sep 17, 2002 Issued
Array ( [id] => 7968591 [patent_doc_number] => 06679208 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-01-20 [patent_title] => 'Device for adjusting the angle of rotation of a camshaft of an internal combustion engine relative to a drive wheel' [patent_app_type] => B2 [patent_app_number] => 10/221949 [patent_app_country] => US [patent_app_date] => 2002-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 1571 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/679/06679208.pdf [firstpage_image] =>[orig_patent_app_number] => 10221949 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/221949
Device for adjusting the angle of rotation of a camshaft of an internal combustion engine relative to a drive wheel Sep 17, 2002 Issued
Array ( [id] => 6718505 [patent_doc_number] => 20030052192 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-03-20 [patent_title] => 'Auto-care irrigation and conditioning system and method' [patent_app_type] => new [patent_app_number] => 10/244950 [patent_app_country] => US [patent_app_date] => 2002-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5264 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 40 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0052/20030052192.pdf [firstpage_image] =>[orig_patent_app_number] => 10244950 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/244950
Auto-care irrigation and conditioning system and method Sep 16, 2002 Abandoned
Array ( [id] => 6771818 [patent_doc_number] => 20030015156 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-01-23 [patent_title] => 'Selecting operating mode in an engine with a hybrid valvetrain' [patent_app_type] => new [patent_app_number] => 10/245259 [patent_app_country] => US [patent_app_date] => 2002-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 8472 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0015/20030015156.pdf [firstpage_image] =>[orig_patent_app_number] => 10245259 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/245259
Selecting operating mode in an engine with a hybrid valvetrain Sep 16, 2002 Issued
Array ( [id] => 6680245 [patent_doc_number] => 20030116109 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-06-26 [patent_title] => 'Fluid control valve actuating system' [patent_app_type] => new [patent_app_number] => 10/244329 [patent_app_country] => US [patent_app_date] => 2002-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4090 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0116/20030116109.pdf [firstpage_image] =>[orig_patent_app_number] => 10244329 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/244329
Fluid control valve actuating system Sep 15, 2002 Issued
Array ( [id] => 1202672 [patent_doc_number] => 06715456 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2004-04-06 [patent_title] => 'Variable valve control comprising a sliding-block part and a free travel' [patent_app_type] => B2 [patent_app_number] => 10/221311 [patent_app_country] => US [patent_app_date] => 2002-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 2295 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/715/06715456.pdf [firstpage_image] =>[orig_patent_app_number] => 10221311 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/221311
Variable valve control comprising a sliding-block part and a free travel Sep 10, 2002 Issued
Array ( [id] => 1251163 [patent_doc_number] => 06668774 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-12-30 [patent_title] => 'Non-contacting apparatus for determining relative rotary position of two elements' [patent_app_type] => B1 [patent_app_number] => 10/234509 [patent_app_country] => US [patent_app_date] => 2002-09-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 1887 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/668/06668774.pdf [firstpage_image] =>[orig_patent_app_number] => 10234509 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/234509
Non-contacting apparatus for determining relative rotary position of two elements Sep 3, 2002 Issued
Array ( [id] => 6747300 [patent_doc_number] => 20030041820 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-03-06 [patent_title] => 'Valve train of an internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/231409 [patent_app_country] => US [patent_app_date] => 2002-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 1670 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0041/20030041820.pdf [firstpage_image] =>[orig_patent_app_number] => 10231409 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/231409
Valve train of an internal combustion engine Aug 28, 2002 Issued
Array ( [id] => 6747306 [patent_doc_number] => 20030041826 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-03-06 [patent_title] => 'Oil-through type push rod' [patent_app_type] => new [patent_app_number] => 10/231753 [patent_app_country] => US [patent_app_date] => 2002-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2925 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0041/20030041826.pdf [firstpage_image] =>[orig_patent_app_number] => 10231753 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/231753
Oil-through type push rod Aug 28, 2002 Issued
Array ( [id] => 1237839 [patent_doc_number] => 06681730 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-01-27 [patent_title] => 'Hydraulic damper for an electromechanical valve' [patent_app_type] => B1 [patent_app_number] => 10/064897 [patent_app_country] => US [patent_app_date] => 2002-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 2625 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/681/06681730.pdf [firstpage_image] =>[orig_patent_app_number] => 10064897 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/064897
Hydraulic damper for an electromechanical valve Aug 26, 2002 Issued
Array ( [id] => 6742262 [patent_doc_number] => 20030019445 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-01-30 [patent_title] => 'Internal combustion engine with exhaust gas control device' [patent_app_type] => new [patent_app_number] => 10/204598 [patent_app_country] => US [patent_app_date] => 2002-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 12079 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 39 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0019/20030019445.pdf [firstpage_image] =>[orig_patent_app_number] => 10204598 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/204598
Internal combustion engine with exhaust gas control device Aug 22, 2002 Issued
Array ( [id] => 6485596 [patent_doc_number] => 20020189561 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-12-19 [patent_title] => 'Internal combustion engine with variable cam timing oil filter with restrictor arrangement' [patent_app_type] => new [patent_app_number] => 10/226277 [patent_app_country] => US [patent_app_date] => 2002-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2969 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0189/20020189561.pdf [firstpage_image] =>[orig_patent_app_number] => 10226277 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/226277
Internal combustion engine with variable cam timing oil filter with restrictor arrangement Aug 21, 2002 Issued
Array ( [id] => 995050 [patent_doc_number] => 06912981 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-07-05 [patent_title] => 'Method and apparatus to correct a cam phaser fault' [patent_app_type] => utility [patent_app_number] => 10/225452 [patent_app_country] => US [patent_app_date] => 2002-08-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2532 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/912/06912981.pdf [firstpage_image] =>[orig_patent_app_number] => 10225452 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/225452
Method and apparatus to correct a cam phaser fault Aug 20, 2002 Issued
Array ( [id] => 7309797 [patent_doc_number] => 20040031864 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-02-19 [patent_title] => 'Granular material spreader capable of spreading a mixture of two or more dry materials' [patent_app_type] => new [patent_app_number] => 10/223972 [patent_app_country] => US [patent_app_date] => 2002-08-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1611 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0031/20040031864.pdf [firstpage_image] =>[orig_patent_app_number] => 10223972 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/223972
Granular material spreader capable of spreading a mixture of two or more dry materials Aug 18, 2002 Abandoned
Array ( [id] => 1320215 [patent_doc_number] => 06595171 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-07-22 [patent_title] => 'Valve timing control system for internal combustion engine' [patent_app_type] => B2 [patent_app_number] => 10/218663 [patent_app_country] => US [patent_app_date] => 2002-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5762 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 239 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/595/06595171.pdf [firstpage_image] =>[orig_patent_app_number] => 10218663 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/218663
Valve timing control system for internal combustion engine Aug 14, 2002 Issued
Array ( [id] => 6776072 [patent_doc_number] => 20030047152 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-03-13 [patent_title] => 'Valve driving apparatus of internal combustion engine' [patent_app_type] => new [patent_app_number] => 10/216199 [patent_app_country] => US [patent_app_date] => 2002-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 9378 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0047/20030047152.pdf [firstpage_image] =>[orig_patent_app_number] => 10216199 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/216199
Valve driving apparatus of internal combustion engine Aug 11, 2002 Issued
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