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] => 1391432 [patent_doc_number] => 06516758 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-02-11 [patent_title] => 'Electromagnetic drive' [patent_app_type] => B1 [patent_app_number] => 09/856010 [patent_app_country] => US [patent_app_date] => 2001-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 27 [patent_no_of_words] => 5229 [patent_no_of_claims] => 44 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/516/06516758.pdf [firstpage_image] =>[orig_patent_app_number] => 09856010 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/856010
Electromagnetic drive May 15, 2001 Issued
Array ( [id] => 1543807 [patent_doc_number] => 06397798 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-06-04 [patent_title] => 'Method and device for electromagnetic valve actuating' [patent_app_type] => B1 [patent_app_number] => 09/807191 [patent_app_country] => US [patent_app_date] => 2001-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 3827 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/397/06397798.pdf [firstpage_image] =>[orig_patent_app_number] => 09807191 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/807191
Method and device for electromagnetic valve actuating Apr 9, 2001 Issued
Array ( [id] => 6888219 [patent_doc_number] => 20010023674 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2001-09-27 [patent_title] => 'Variable valve drive mechanism and intake air amount control apparatus of internal combustion engine' [patent_app_type] => new [patent_app_number] => 09/805928 [patent_app_country] => US [patent_app_date] => 2001-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 51 [patent_figures_cnt] => 51 [patent_no_of_words] => 17711 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0023/20010023674.pdf [firstpage_image] =>[orig_patent_app_number] => 09805928 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/805928
Variable valve drive mechanism and intake air amount control apparatus of internal combustion engine Mar 14, 2001 Issued
Array ( [id] => 1543825 [patent_doc_number] => 06397805 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-06-04 [patent_title] => 'Retainer for rocker arm coupling in an internal combustion engine' [patent_app_type] => B1 [patent_app_number] => 09/804565 [patent_app_country] => US [patent_app_date] => 2001-03-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 26 [patent_no_of_words] => 8063 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 187 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/397/06397805.pdf [firstpage_image] =>[orig_patent_app_number] => 09804565 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/804565
Retainer for rocker arm coupling in an internal combustion engine Mar 11, 2001 Issued
Array ( [id] => 1543812 [patent_doc_number] => 06397800 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2002-06-04 [patent_title] => 'Valve control device of internal combustion engine' [patent_app_type] => B2 [patent_app_number] => 09/803141 [patent_app_country] => US [patent_app_date] => 2001-03-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 33 [patent_no_of_words] => 11753 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/397/06397800.pdf [firstpage_image] =>[orig_patent_app_number] => 09803141 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/803141
Valve control device of internal combustion engine Mar 11, 2001 Issued
Array ( [id] => 1543814 [patent_doc_number] => 06397801 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2002-06-04 [patent_title] => 'Valve timing control apparatus of an internal combustion engine' [patent_app_type] => B2 [patent_app_number] => 09/804528 [patent_app_country] => US [patent_app_date] => 2001-03-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3650 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/397/06397801.pdf [firstpage_image] =>[orig_patent_app_number] => 09804528 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/804528
Valve timing control apparatus of an internal combustion engine Mar 11, 2001 Issued
Array ( [id] => 6409489 [patent_doc_number] => 20020124819 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-09-12 [patent_title] => 'Internal combustion engine with variable cam timing oil filter with restrictor arrangement' [patent_app_type] => new [patent_app_number] => 09/803288 [patent_app_country] => US [patent_app_date] => 2001-03-10 [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/A1/0124/20020124819.pdf [firstpage_image] =>[orig_patent_app_number] => 09803288 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/803288
Internal combustion engine with variable cam timing oil filter with restrictor arrangement Mar 9, 2001 Issued
Array ( [id] => 1367108 [patent_doc_number] => 06543399 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-04-08 [patent_title] => 'Apparatus for adjusting a camshaft' [patent_app_type] => B2 [patent_app_number] => 09/801866 [patent_app_country] => US [patent_app_date] => 2001-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1926 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 184 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/543/06543399.pdf [firstpage_image] =>[orig_patent_app_number] => 09801866 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/801866
Apparatus for adjusting a camshaft Mar 8, 2001 Issued
Array ( [id] => 6946494 [patent_doc_number] => 20010020461 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2001-09-13 [patent_title] => 'Apparatus for adjusting a camshaft' [patent_app_type] => new [patent_app_number] => 09/801829 [patent_app_country] => US [patent_app_date] => 2001-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1028 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0020/20010020461.pdf [firstpage_image] =>[orig_patent_app_number] => 09801829 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/801829
Apparatus for adjusting a camshaft Mar 8, 2001 Abandoned
Array ( [id] => 1502133 [patent_doc_number] => 06439176 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-08-27 [patent_title] => 'Control system for deactivation of valves in an internal combustion engine' [patent_app_type] => B1 [patent_app_number] => 09/799301 [patent_app_country] => US [patent_app_date] => 2001-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 15 [patent_no_of_words] => 3040 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/439/06439176.pdf [firstpage_image] =>[orig_patent_app_number] => 09799301 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/799301
Control system for deactivation of valves in an internal combustion engine Mar 4, 2001 Issued
Array ( [id] => 1281775 [patent_doc_number] => 06631700 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2003-10-14 [patent_title] => 'Dual oil feed variable timed camshaft arrangement' [patent_app_type] => B2 [patent_app_number] => 09/742707 [patent_app_country] => US [patent_app_date] => 2000-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 3570 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/631/06631700.pdf [firstpage_image] =>[orig_patent_app_number] => 09742707 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/742707
Dual oil feed variable timed camshaft arrangement Dec 19, 2000 Issued
Array ( [id] => 6132286 [patent_doc_number] => 20020077539 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-06-20 [patent_title] => 'Restraining apparatus and method for use in imaging procedures' [patent_app_type] => new [patent_app_number] => 09/738423 [patent_app_country] => US [patent_app_date] => 2000-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 5502 [patent_no_of_claims] => 84 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 19 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0077/20020077539.pdf [firstpage_image] =>[orig_patent_app_number] => 09738423 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/738423
Restraining apparatus and method for use in imaging procedures Dec 14, 2000 Issued
Array ( [id] => 1303955 [patent_doc_number] => 06609487 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-08-26 [patent_title] => 'Composite o-ring seal' [patent_app_type] => B1 [patent_app_number] => 09/711209 [patent_app_country] => US [patent_app_date] => 2000-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 4 [patent_no_of_words] => 1721 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/609/06609487.pdf [firstpage_image] =>[orig_patent_app_number] => 09711209 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/711209
Composite o-ring seal Nov 8, 2000 Issued
Array ( [id] => 1514231 [patent_doc_number] => 06499617 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-12-31 [patent_title] => 'Rotary seal stopper' [patent_app_type] => B1 [patent_app_number] => 09/617609 [patent_app_country] => US [patent_app_date] => 2000-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 22 [patent_no_of_words] => 5343 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 265 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/499/06499617.pdf [firstpage_image] =>[orig_patent_app_number] => 09617609 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/617609
Rotary seal stopper Jul 16, 2000 Issued
Array ( [id] => 1117797 [patent_doc_number] => 06796972 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-09-28 [patent_title] => 'Catheter anchoring balloon structure with irrigation' [patent_app_type] => B1 [patent_app_number] => 09/616303 [patent_app_country] => US [patent_app_date] => 2000-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 2144 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/796/06796972.pdf [firstpage_image] =>[orig_patent_app_number] => 09616303 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/616303
Catheter anchoring balloon structure with irrigation Jul 13, 2000 Issued
Array ( [id] => 1351017 [patent_doc_number] => 06572590 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-06-03 [patent_title] => 'Adjustable quick-release valve with toggle capability' [patent_app_type] => B1 [patent_app_number] => 09/615528 [patent_app_country] => US [patent_app_date] => 2000-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 23 [patent_no_of_words] => 19834 [patent_no_of_claims] => 21 [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/06/572/06572590.pdf [firstpage_image] =>[orig_patent_app_number] => 09615528 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/615528
Adjustable quick-release valve with toggle capability Jul 12, 2000 Issued
Array ( [id] => 1229492 [patent_doc_number] => 06692484 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-02-17 [patent_title] => 'Devices for extracting biliary or urinary stones' [patent_app_type] => B1 [patent_app_number] => 09/615017 [patent_app_country] => US [patent_app_date] => 2000-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 19 [patent_no_of_words] => 8434 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/692/06692484.pdf [firstpage_image] =>[orig_patent_app_number] => 09615017 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/615017
Devices for extracting biliary or urinary stones Jul 12, 2000 Issued
Array ( [id] => 1207613 [patent_doc_number] => 06712789 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-03-30 [patent_title] => 'Introducer having a movable valve assembly with removable side port' [patent_app_type] => B1 [patent_app_number] => 09/615276 [patent_app_country] => US [patent_app_date] => 2000-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 18 [patent_no_of_words] => 4709 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/712/06712789.pdf [firstpage_image] =>[orig_patent_app_number] => 09615276 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/615276
Introducer having a movable valve assembly with removable side port Jul 12, 2000 Issued
Array ( [id] => 7965719 [patent_doc_number] => 06679852 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-01-20 [patent_title] => 'System for withdrawing body fluid' [patent_app_type] => B1 [patent_app_number] => 09/614269 [patent_app_country] => US [patent_app_date] => 2000-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 10 [patent_no_of_words] => 3341 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/679/06679852.pdf [firstpage_image] =>[orig_patent_app_number] => 09614269 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/614269
System for withdrawing body fluid Jul 11, 2000 Issued
Array ( [id] => 1409126 [patent_doc_number] => 06514231 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-02-04 [patent_title] => 'Disposable syringe with single variable volume chamber' [patent_app_type] => B1 [patent_app_number] => 09/614373 [patent_app_country] => US [patent_app_date] => 2000-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1731 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 231 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/514/06514231.pdf [firstpage_image] =>[orig_patent_app_number] => 09614373 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/614373
Disposable syringe with single variable volume chamber Jul 11, 2000 Issued
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